All 236+ Free Online Tools
Browse our complete collection of browser-based tools organized by category. Every tool processes your files entirely on your device - nothing is uploaded to any server. No accounts, no subscriptions, no limits.
Image Processing
39 tools
3D Model Viewer
View and inspect 3D models in GLTF, GLB, OBJ, STL, and FBX formats. Features orbit controls, wireframe mode, lighting presets, and screenshot export.
Barcode Reader & Scanner
Scan barcodes from images or camera. Supports EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, ISBN, and more. Search products instantly.
Chord Diagram Generator
Create chord diagrams for guitar, ukulele, and bass. Choose from chord library or build custom fingerings. Export as PNG or SVG.
Color Blindness Simulator
Test how your images and designs appear to people with different types of color vision deficiency including protanopia, deuteranopia, tritanopia, and more
Drawing Canvas & Whiteboard
Free online drawing canvas and whiteboard. Draw, sketch, and create with brushes, shapes, colors, undo/redo, and export to PNG or JPG.
GIF Maker - Create Animated GIFs from Images
Create animated GIFs from multiple images with custom frame timing, size presets, and loop options. Drag and drop to reorder frames, set individual delays, and preview your animation in real-time.
Image Annotator
Annotate images with arrows, shapes, text, highlights, and blur regions. Perfect for screenshot markup, tutorials, and documentation.
Image Background Remover
Remove backgrounds from images with smart edge detection. Supports color picker, corner detection, and preset colors with adjustable tolerance.
Image Batch Processor
Process multiple images at once with consistent settings. Apply resize, format conversion, compression, and filters to bulk images efficiently.
Image Collage Maker
Create beautiful photo collages with flexible grid layouts. Features customizable spacing, background colors, borders, and multiple arrangement options.
Image Color Grader
Professional color grading: adjust brightness, contrast, saturation, hue, shadows, highlights, and temperature. Create cinematic looks with color curves.
Image Color Palette Extractor
Extract dominant, vibrant, or muted colors from images. Generate color schemes with HEX, RGB, HSL values and export palettes for design projects.
Image Compressor
Compress images to reduce file size while maintaining visual quality. Supports lossy and lossless compression with real-time preview and size comparison.
Image Cropper
Crop and trim images with precision visual selection. Features aspect ratio presets (1:1, 16:9, 4:3), free-form cropping, grid overlays, and pixel-perfect adjustments for professional results.
Image Diff Comparator
Compare two images pixel-by-pixel. Multiple comparison modes: side-by-side, overlay, difference highlighting, onion skin, and slider. Perfect for visual regression testing.
Image Edge Detector
Detect and highlight edges using Sobel, Canny, and other algorithms. Features threshold control, direction filters, and contour extraction.
Image Filters
Apply professional photo filters: blur, sharpen, grayscale, sepia, invert, vintage, and more. Features preset effects and custom adjustments for stunning results.
Image Format Converter
Convert images between PNG, JPG, WebP, AVIF, BMP formats. Features quality control, transparency support, and batch conversion for efficient workflow.
Image Histogram
Analyze color distribution with RGB, luminance, and individual channel histograms. Features exposure analysis, statistics, and comparison tools.
Image Metadata Remover
Strip EXIF, GPS, camera data and other metadata for privacy. Features selective removal, batch processing, and metadata preview before removal.
Image Metadata Viewer
Read EXIF, IPTC, XMP metadata from images. View camera settings, GPS location, date taken, color profiles, and technical image properties.
Image Pixelator
Create pixelated effects with square, circle, diamond, or hexagon shapes. Features presets for retro gaming, mosaic art, and privacy blur effects.
Image Resizer
Resize and scale images with smart aspect ratio control. Supports custom dimensions, percentage scaling, social media presets, and batch resizing while maintaining image quality.
Image Rotation & Flip
Rotate images to any angle and flip horizontally or vertically. Features precise degree control, 90° quick rotations, and straightening tools.
Image Text Extractor (OCR)
Extract text from images using advanced OCR. Supports 18+ languages, page segmentation modes, confidence scores, and multi-format export.
Image to ASCII Art
Convert images to ASCII text art with customizable character sets. Features width control, color/monochrome modes, and multiple character density options.
Image to Base64
Convert images to Base64 encoded strings for embedding in CSS, HTML, or JavaScript. Multiple output formats available.
Image to Icon Generator
Generate favicons and app icons in all required sizes. Supports iOS, Android, Windows, and web platforms with one-click preset generation.
Image to SVG Tracer
Convert raster images (PNG, JPG) to scalable SVG vector graphics. Black & white or color tracing with adjustable threshold, smoothing, blur, and path options.
Image Upscaler
Enlarge images up to 4x while preserving quality. Uses advanced interpolation algorithms (Bilinear, Bicubic, Lanczos) with optional sharpening.
Image Watermark
Add text or image watermarks to protect your photos. Features position control, opacity adjustment, tiled patterns, and batch processing for copyright protection.
Meme Generator
Create memes with customizable text overlays. Add multiple text layers, adjust fonts, colors, and positions.
Placeholder Image Generator
Generate placeholder images for mockups, wireframes, and development. Custom dimensions, colors, text. Presets for social media, avatars, web. Export as PNG, JPG, or SVG.
QR Code Reader & Scanner
Scan QR codes from images or using your camera. Supports URLs, WiFi, contacts, emails, phone numbers, and more. 100% offline - no data uploaded.
Screenshot Beautifier
Add beautiful backgrounds, shadows, and frames to screenshots. Perfect for presentations and social media.
Sprite Sheet Generator
Create sprite sheets from multiple images with JSON metadata, or slice existing sprite sheets into individual frames. Perfect for game development.
SVG Optimizer
Optimize and minify SVG files by removing unnecessary metadata, comments, and whitespace while preserving visual quality.
SVG to PNG/JPG
Convert SVG vector graphics to high-quality raster images (PNG, JPG, WebP) with custom scaling and background options.
Texture Generator
Generate seamless tileable textures using Perlin noise, Simplex noise, Voronoi cells, and FBM. Customize colors with gradient editor. Export at multiple resolutions.
Audio Processing
21 tools
Audio Equalizer (10-Band)
Professional 10-band parametric equalizer from 32Hz to 16kHz. Includes presets for bass boost, treble boost, vocal, rock, pop, jazz, and classical. Real-time adjustment with live preview.
Audio Fade In/Out Creator
Create smooth fade-in and fade-out transitions with multiple curve types: linear, exponential, logarithmic, S-curve, and ease-in-out. Adjustable duration and visual envelope preview.
Audio Format Converter
Convert audio files between WAV, MP3, OGG, AAC, M4A, FLAC formats online. Adjust bitrate and quality settings. Free browser-based conversion with no file uploads to servers.
Audio Merger & Joiner
Combine multiple audio files into one track. Drag and drop to reorder, merge MP3s, WAVs, and other formats. Create seamless audio compilations online.
Audio Pitch Shifter
Shift audio pitch up or down by semitones with musical interval names (octave, perfect fifth, major third). Fine-tune with cents adjustment. Option to preserve original duration using granular synthesis.
Audio Spectrum Analyzer
Real-time audio frequency spectrum analyzer and visualizer. View frequency bars, waveform, and spectral display. Supports microphone input and file playback with multiple color themes.
Audio Speed Changer
Speed up or slow down audio playback from 0.25x to 4x without changing pitch. Perfect for transcription, music practice, podcast speed adjustment, and audiobook listening.
Audio Trimmer & Cutter
Trim, cut, and slice audio files with interactive waveform visualization. Drag handles to select portions, use keyboard shortcuts, zoom and pan, preview selection before export. Supports MP3, WAV, OGG, AAC.
Audio Volume Normalizer
Normalize audio loudness using Peak, RMS, or LUFS standards. Apply streaming presets (-14 LUFS for Spotify/YouTube), broadcast (-23 LUFS), or CD mastering levels. Visual loudness meter included.
Audio Waveform Generator
Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.
BPM Detector
Detect the tempo (BPM) of any audio file. Includes tap tempo feature and genre reference guide.
Noise Gate & Audio Cleaner
Remove background noise and unwanted silence with professional noise gate. Adjust threshold, attack, release, and range parameters. Includes presets for voice, music, and aggressive gating.
Online Audio Recorder
Record audio from microphone directly in browser. Real-time waveform visualization, pause/resume, and export to multiple formats (MP3, WAV, OGG). No software installation required.
Online Metronome
Free online metronome with BPM range 20-300, tap tempo, time signatures (2/4 to 12/8), accent patterns, and multiple click sounds. Visual beat indicator included.
Reverb Effect Generator
Add professional reverb effects with 9 presets: Small Room, Hall, Cathedral, Canyon, Bathroom, Plate, Spring, and Studio. Adjust pre-delay, decay, wet/dry mix, and frequency damping.
Ringtone Maker
Create custom ringtones from any audio file. Select portion, add fade effects, export for iPhone (.m4r) or Android (.mp3).
Silence Detector & Remover
Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.
Text to Speech
Convert text to speech using browser Web Speech API. Choose from multiple voices, adjust speed and pitch, and play audio directly.
Tone Generator
Generate pure audio tones with sine, square, sawtooth, and triangle waveforms. Create multiple oscillators, binaural beats, and export as WAV.
Vocal Remover / Karaoke Maker
Remove or isolate vocals from songs using phase cancellation. Create karaoke tracks, extract vocals, or isolate center-panned content. Works best with stereo professionally mixed tracks.
Voice Changer & Effects
Transform voices with 9 effects: Chipmunk, Deep Voice, Robotic, Alien, Echo, Telephone, Monster, Whisper, and Helium. Includes pitch shift, filters, distortion, and modulation controls.
Video Processing
19 tools
Green Screen Remover - Chroma Key Online
Remove green screen backgrounds with professional chroma key. Adjustable color picker, similarity threshold, and edge blending. Export with transparency (MOV with alpha channel).
Screen Recorder - Record Screen & Webcam Online
Record your screen, webcam, or both with system audio and microphone. No software install required - runs in browser. Choose recording area: full screen, window, or browser tab.
Video Compressor - Reduce Video File Size Online
Compress videos up to 90% smaller without visible quality loss. Multiple quality presets, resolution scaling, and bitrate control. Perfect for email, social media, and web uploads.
Video Cropper - Crop & Resize Video Dimensions
Crop videos to any aspect ratio. Platform presets for Instagram (1:1, 9:16), YouTube (16:9), TikTok. Interactive crop area with rule of thirds grid. Real-time preview while cropping.
Video Format Converter - MP4, WebM, MOV, AVI, MKV
Convert videos between MP4, WebM, OGG, MOV, AVI, and MKV formats. Device presets for YouTube, Instagram, TikTok, iPhone, Android. Quality options from fast to high quality encoding.
Video Frame Rate Converter - Change FPS Online
Convert video frame rate: 24fps (cinematic), 30fps (standard), 60fps (smooth gaming), 120fps (slow motion). Use-case presets for film, YouTube, gaming, and smooth motion interpolation.
Video Loop Creator - Repeat Videos Seamlessly
Create looping videos that repeat multiple times. Perfect for Instagram Stories, TikTok, background videos, and cinemagraphs. Set loop count (3x, 5x, 10x, 20x) with seamless joins.
Video Merger - Combine & Join Multiple Videos
Merge multiple video clips into one seamless video. Drag-and-drop reordering, preview before export, timeline visualization. Combine videos in any format with automatic re-encoding.
Video Mute / Audio Remover
Remove or mute audio from video files. Create silent videos for social media, adjust volume levels, or completely strip the audio track. No uploads - 100% browser-based.
Video Quality Adjuster - Change Resolution & Bitrate
Adjust video quality with resolution scaling (360p to 1440p) and bitrate control. Use-case presets for mobile, web, archive, and email. Real-time file size estimation.
Video Reverser - Play Video Backwards Online
Reverse any video to play from end to start. Option to reverse audio too or mute. Create unique visual effects, boomerang videos, and creative content. Instant preview.
Video Rotation Tool - Rotate & Flip Videos Online
Rotate videos 90°, 180°, 270° or flip horizontally/vertically. Fix sideways videos, create mirror effects. Quick presets for portrait-to-landscape and selfie mirror fix.
Video Speed Controller - Speed Up or Slow Down Videos
Change video playback speed from 0.25x to 4x. Create slow motion effects, time-lapse videos, or speed ramps. Audio pitch preserved automatically with intelligent adjustment.
Video Subtitle Burner - Hardcode Subtitles
Burn subtitles permanently into video (hardcode). Support for SRT and VTT files. Customize font size and position (top/center/bottom). Perfect for social media where CC may not work.
Video Thumbnail Extractor - Extract Frames as Images
Extract perfect thumbnails from any video. Auto-extract key frames or manual frame-by-frame selection. Export as JPEG, PNG, or WebP. Ideal for YouTube thumbnails and preview images.
Video to Audio Extractor - Extract MP3 from Video
Extract audio track from any video as MP3, WAV, AAC, OGG, or M4A. Quality presets from 128kbps to lossless. Perfect for podcasts, music extraction, and audio-only content.
Video to GIF Converter - Create Animated GIFs Online
Convert any video clip to high-quality animated GIF. Control frame rate, duration, and dimensions. Palette optimization for smaller file sizes. Perfect for memes, reactions, and social sharing.
Video Trimmer - Cut & Clip Videos Online
Trim and cut videos precisely with frame-by-frame scrubbing. Set start/end points visually, preview clips in real-time, and export trimmed videos instantly. No upload required - runs 100% in browser.
Video Watermark Adder - Add Text or Logo to Videos
Add custom text watermarks or image logos to videos. 9 position grid placement, adjustable opacity and size. Protect your content with branded watermarks. Drag-and-drop positioning.
Document & Text
20 tools
Code Minifier & Beautifier
Minify or beautify code in 7 languages: JavaScript, TypeScript, CSS, HTML, JSON, XML, SQL with compression visualization
Code Syntax Highlighter
Add syntax highlighting to code in 22 languages with 7 color themes, line numbers, and export to HTML
Haiku Generator
Generate haiku poems with 10 themes: Nature, Zen, Ocean, Love, Technology, Space. Save favorites, custom words, export as image
HTML ↔ Markdown Converter
Bidirectional HTML and Markdown converter with GitHub Flavored Markdown, tables, live preview, and customizable output styles
JSON Formatter & Validator
Format, validate, minify JSON with JSONPath queries, tree view explorer, schema validation, diff comparison, and sort keys. Multiple indent styles
JSON Schema Generator
Generate JSON Schema from JSON data automatically. Infers types, formats (email, date, URI), required fields, nested objects, and arrays. Supports Draft-07 and 2020-12.
Lorem Ipsum & Placeholder Generator
Generate placeholder text in 8 styles: Classic Lorem, Hipster, Corporate, Pirate, Bacon, Zombie, Space, and Custom vocabulary with words/sentences/paragraphs
Markdown Editor & Preview
Full-featured Markdown editor with live preview, GitHub Flavored Markdown, syntax highlighting, table of contents, export to HTML/PDF, and multiple themes
Markdown Table Generator
Create Markdown tables with a visual editor. Add columns, rows, set alignment, and export perfectly formatted tables.
Printable Paper Generator
Generate custom printable paper templates: dot grid, graph paper, lined, isometric, Cornell notes, music staff, and hexagonal grid. Export as PDF or PNG.
Regex Tester & Debugger
Test regex patterns with live matching, capture groups, flags (g/i/m/s/u), pattern library with common expressions, find & replace, and detailed match breakdown
SQL Formatter
Format and beautify SQL queries with syntax highlighting. Supports multiple dialects and customizable formatting options.
Text Case Converter
Convert text between 12 cases: UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Sentence, and Alternating
Text Diff & Compare Tool
Compare texts with side-by-side and unified diff views, line-by-line or character-level comparison, change statistics, and export to patch file
Text Encryption & Encoding
Encrypt text with 12 methods: Caesar, Vigenère, XOR, Atbash, ROT13, Base64, Morse, Binary, Hex, Affine, Rail Fence ciphers
Text Statistics Analyzer
Analyze text complexity, readability, and detailed statistics
Word Counter & Text Analyzer
Count words, characters, paragraphs, sentences with reading time, speaking time, readability scores (Flesch, Gunning Fog), and word frequency analysis
XML Formatter & Tools
Format, validate XML with XPath queries, interactive tree view, XML-to-JSON conversion, and multiple color themes
XPath Tester
Test and debug XPath expressions against XML documents. See matched nodes, values, and counts in real-time.
YAML Formatter & Converter
Format, validate, and convert between YAML and JSON formats. Live validation, syntax highlighting, and bidirectional conversion.
PDF Tools
17 tools
Images to PDF
Convert multiple images into a single PDF document. Drag and drop to reorder pages, customize page size, orientation, and margins.
PDF Annotation Viewer
View and export comments and annotations
PDF Compressor
Reduce PDF file size with quality control
PDF Cropper
Crop PDF page margins to remove whitespace
PDF Header/Footer Adder
Add custom headers and footers with page numbers
PDF Image Extractor
Extract embedded images (photos, logos) from PDF
PDF Merger
Combine multiple PDF files into one document
PDF Page Remover
Remove specific pages from a PDF document
PDF Page Reorder
Reorder pages in a PDF by dragging and dropping
PDF Password Protector
Encrypt and password-protect your PDF documents. Set user and owner passwords, control printing, copying, and editing permissions with 128-bit AES encryption.
PDF Rotator
Rotate individual pages or all pages in a PDF
PDF Signature Tool
Add your signature to PDF documents. Draw, type, or upload your signature, then position it anywhere on the page. Perfect for contracts, agreements, and official documents.
PDF Splitter
Split a PDF into individual page files
PDF Text Extractor
Extract all text content from a PDF document
PDF to Booklet
Arrange PDF pages for booklet printing
PDF to Images
Render each PDF page as a PNG or JPG image
PDF Watermark Adder
Add text watermarks to protect your PDFs
CSV & Data Analysis
20 tools
CSV Column Filter
Filter and select specific columns from CSV files
CSV Column Renamer
Rename CSV columns with live preview
CSV Data Transformer
Transform CSV columns with 25+ operations: text manipulation (uppercase, lowercase, trim), number formatting, date conversion, extraction patterns, and custom pipelines
CSV Data Type Detector
Automatically identify column data types
CSV Data Validator
Validate CSV data against custom rules
CSV Duplicate Remover
Identify and remove duplicate rows from CSV files
CSV File Comparator
Compare two CSV files side-by-side, find added/removed/modified rows, key-based or positional matching, highlight differences, and download comparison report
CSV Formatter & Validator
Pretty-print, validate, and clean up CSV files
CSV Merger
Combine multiple CSV files into one
CSV Missing Data Analyzer
Find and report empty cells and missing values
CSV Pivot Table Generator
Create pivot tables with 11 aggregation types including sum, count, avg, median, stddev, first, last, and concatenate
CSV Row Filter
Filter rows based on custom criteria and conditions
CSV Search & Replace
Find and replace values with regex support
CSV Sorter
Sort CSV data by multiple columns with custom ordering
CSV Splitter
Split large CSV files into smaller chunks by row count
CSV Statistics Generator
Calculate min, max, average, median, and more for CSV data
CSV to Excel Converter
Export CSV files as Excel (XLSX/XLS) format
CSV to JSON Converter
Convert between CSV and JSON formats
CSV to SQL
Generate SQL INSERT and CREATE TABLE statements
CSV Viewer & Editor
View and edit CSV files in a spreadsheet-like interface
Converters & Encoders
22 tools
Barcode Generator
Generate barcodes in CODE128, CODE39, EAN13, UPC formats
Base64 Encoder/Decoder
Encode and decode text or files to/from Base64
Checksum Calculator
Calculate file checksums and verify integrity (MD5, SHA-1, SHA-256)
Color Converter
Convert between HEX, RGB, HSL, and CMYK color formats
Color Palette Generator
Generate harmonious color schemes using color theory
Currency Converter
Convert between 30+ world currencies with offline exchange rates
File Encryption
Encrypt and decrypt files using AES encryption. Your data never leaves your browser for complete privacy.
Font Converter
Convert fonts between TTF, OTF, WOFF, and WOFF2 formats. Preview fonts with custom text, view font details, and generate CSS @font-face code.
Hash Generator
Generate MD5, SHA1, SHA256, SHA384, SHA512 hashes from text
JWT Builder
Create and sign JSON Web Tokens (JWT) with custom claims. Support for HS256, HS384, HS512 HMAC algorithms
JWT Decoder
Decode and inspect JSON Web Tokens (JWT). View header, payload, claims, expiration status, and signature without needing the secret key
Morse Code Translator
Convert text to Morse code and back. Play audio of the Morse code with adjustable speed and tone.
NATO Phonetic Alphabet
Convert text to NATO phonetic alphabet (Alpha, Bravo, Charlie...) and back. Includes pronunciation guide and text-to-speech.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal
Punycode Converter
Convert internationalized domain names (IDN) between Unicode and Punycode ASCII encoding. Support for non-ASCII domains.
QR Code Generator
Generate QR codes from text or URLs
Slug Generator
Create URL-friendly slugs from text for SEO and clean URLs
Timezone Converter
Convert time between different timezones worldwide
Unit Converter
Convert length, weight, temperature, and volume units
Unix Timestamp Converter
Convert between Unix/Epoch timestamps and human-readable dates. Supports seconds and milliseconds with timezone information
URL Encoder/Decoder
URL encode or decode text for safe use in URLs
UUID Generator
Generate random v4 UUIDs with multiple format options
Web Tools
39 tools
.gitignore Generator
Generate .gitignore files for any project. Pre-built templates for Node.js, Python, React, Java, Go, Rust, and 50+ more technologies.
Certificate Decoder
Decode and analyze PEM-encoded X.509 SSL/TLS certificates. View subject, issuer, validity, extensions, and fingerprints
Checklist Creator
Create reusable checklists with nested items, 4 templates (Project Launch, Travel Packing, Weekly Review, Event Planning), progress tracking, and Markdown export
Color Picker
Professional color picker with saturation-brightness canvas, hue slider, HEX/RGB/HSL/HSB formats, saved colors palette, contrast calculation, and preset colors
Cron Expression Builder
Build and understand cron expressions with a visual interface. See next scheduled runs, use common presets, and generate cron syntax for scheduled tasks
CSP Builder
Visual Content Security Policy builder. Create CSP headers to protect against XSS and code injection attacks
CSR Generator
Generate Certificate Signing Requests (CSR) for SSL/TLS certificates with RSA key pairs. Submit to CAs for certificate issuance
CSS Animation Generator
Create custom CSS keyframe animations visually. Add keyframes, adjust timing, and preview animations in real-time.
CSS Border Radius Generator
Create custom border radius with individual corner control, linked/unlinked mode, px/% units, interactive corner sliders on preview, and 12 shape presets
CSS Box Shadow Generator
Design complex box shadows with multi-layer support, inset shadows, visibility toggle, layer reordering, opacity control, and 12 professional presets
CSS Button Generator
Design custom CSS buttons with text, background (solid/gradient), border, shadow, and hover effects controls. 12 presets including 3D, Neon, Ghost, and Pill styles
CSS Clip Path Generator
Create custom CSS clip-path shapes visually. Drag points to customize polygons, circles, and complex shapes.
CSS Flexbox & Grid Playground
Visual layout builder for CSS Flexbox and Grid. Toggle between modes, adjust properties interactively, use presets, and copy generated CSS code.
CSS Gradient Generator
Create stunning CSS gradients with linear/radial/conic types, angle control, position control, multiple color stops, 11 presets, and reverse/randomize features
Favicon Generator
Create favicons from text, emojis, or images with all device sizes (16x16 to 512x512), background/text color customization, border radius control, and batch download
Font Pairing Suggester
Discover beautiful font combinations with 12 curated Google Fonts pairings, live preview, mood filters, usage tags, CSS import/variables export, and favorites
Glassmorphism Generator
Create beautiful frosted glass CSS effects with customizable blur, transparency, and border settings.
HTML Entity Encoder/Decoder
Encode and decode HTML entities. Supports named entities (&), numeric (&), and hex (&) formats. Escape special characters for HTML.
HTTP Status Codes Reference
Complete HTTP status code reference with descriptions. Search all 1xx, 2xx, 3xx, 4xx, and 5xx status codes with explanations
Invoice Generator
Create professional invoices and download as PDF. Add items, taxes, discounts, and customizable details.
Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Card tags for your website. Preview how your page appears in search results and social media.
Mock Data Generator
Generate realistic fake data for testing and development. Create names, usernames, emails, addresses, phone numbers, and more. Export to JSON or CSV format
Open Graph Preview
Preview how your links will appear when shared on Facebook, Twitter, LinkedIn, Discord, Slack, WhatsApp, and iMessage.
Password Generator
Generate ultra-secure passwords with presets (Simple to Paranoid), strength analysis, entropy calculation, crack time estimation, password history, and bulk generation
Password Strength Checker
Analyze password security with 10 criteria checks, entropy calculation, crack time estimation, character breakdown, warnings, and improvement suggestions
PEM/DER Converter
Convert certificates and keys between PEM (Base64) and DER (binary) formats. Supports certificates, keys, and CSRs
Pomodoro Timer
Focus timer using Pomodoro technique with work/break sessions, circular progress, presets (Classic 25/5, Deep Work, 52/17), stats tracking, and auto-start options
Robots.txt Generator
Create robots.txt files to control how search engines crawl your website. Support for multiple user-agents, allow/disallow rules, sitemaps, and crawl-delay.
Self-Signed Certificate Generator
Generate self-signed SSL/TLS certificates for local development and testing. Includes Subject Alternative Names support
SRI Hash Generator
Generate Subresource Integrity (SRI) hashes for scripts and stylesheets. Protect against CDN compromise and tampering
SSH Key Generator
Generate secure SSH key pairs (Ed25519, RSA) for server authentication and Git. Creates public/private keys with fingerprints
SSL Certificate Checker
Check if a website has valid SSL/TLS certificate. Verify HTTPS connection and get tools for detailed certificate analysis
Subnet Calculator
Calculate IPv4 and IPv6 subnet details including network address, broadcast, host range, netmask, and wildcard mask
Timer & Stopwatch
Dual-mode time tracker with stopwatch including lap times (fastest/slowest highlighting), countdown timer with presets, sound alerts, and browser notifications
To-Do List
Organize tasks with priorities (low/medium/high), due dates, tags, smart filtering, search, sorting, stats dashboard, import/export, and local storage persistence
URL Safety Analyzer
Analyze any URL for phishing, suspicious patterns, and security risks. Detects login keywords, suspicious TLDs, encoded characters, brand impersonation, and more
User Agent Parser
Parse and analyze user agent strings to extract browser, OS, device type, and rendering engine information
What's My IP
Find your public IP address, location, timezone, and ISP information instantly. Free, fast, and private IP lookup tool
Zettelkasten Notes
Build a personal knowledge base with [[bidirectional links]], tags, backlinks, search, note metadata, and import/export. Implements Zettelkasten method
Math & Science
20 tools
3D Graphing Calculator
Plot and visualize 3D mathematical functions and surfaces
Aspect Ratio Calculator
Calculate aspect ratios, resize dimensions while maintaining proportions. Common presets for video, photo, mobile screens, and social media
BMI Calculator
Calculate your Body Mass Index with metric or imperial units. Visual scale, health categories, ideal weight range, and health tips.
Chemistry Calculator
Calculate molar mass, pH, and molarity for chemistry problems
Date & Age Calculator
Calculate exact age in years, months, and days. Find date differences, countdowns, zodiac signs, and detailed time breakdowns
Equation Solver
Solve linear and quadratic equations with step-by-step solutions
Finance Calculator
Calculate loans, mortgages, compound interest, and ROI
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions
GCD & LCM Calculator
Calculate Greatest Common Divisor and Least Common Multiple of multiple numbers. Shows prime factorization and common divisors.
Geometry Tool
Calculate area, perimeter, volume, and surface area of shapes
Graphing Calculator
Plot and visualize mathematical functions with multiple overlays
Matrix Calculator
Perform matrix operations including multiply, transpose, and inverse
Percentage Calculator
Calculate percentages, percentage changes, increases, decreases, and find original values. Multiple calculation modes with formulas.
Physics Calculator
Calculate force, energy, kinematics, and power in physics
Prime Number Checker
Check if a number is prime and find prime factorization
Scientific Calculator
Advanced calculator with scientific functions and history
Statistics Calculator
Calculate mean, median, mode, standard deviation and more
Time Calculator
Add, subtract, and calculate time differences
Tip Calculator
Calculate tips and split bills easily. Service quality presets, custom percentages, bill splitting, and rounding options.
Truth Table Generator
Generate complete truth tables for boolean expressions. Supports AND, OR, NOT, XOR, NAND, NOR, IMPLIES, IFF with sub-expression evaluation and tautology detection.
Games
19 tools
2048 Game
Slide numbered tiles to combine and reach 2048! Features touch/swipe support, undo functionality, and score tracking
Blackjack
Casino blackjack card game. Hit, stand, or double down! 6-deck shoe, dealer stands on 17, blackjack pays 3:2
Breakout
Ball and paddle brick breaker game. Break all bricks for points! Mouse/touch controls, colored brick rows
Conway's Game of Life
Classic cellular automaton simulation. Draw cells, load famous patterns (Glider, Pulsar, Gosper Gun), and watch complex behavior emerge from simple rules.
Dice Roller
Roll virtual dice for tabletop games. Supports d4, d6, d8, d10, d12, d20, d100 with modifiers and history.
Flappy Bird
Navigate through pipes in this side-scrolling game. Features animated bird, increasing difficulty, and high scores
Hangman
Word guessing game with 5 categories (animals, countries, food, technology, sports), SVG animation, and hints
Mastermind
Code-breaking puzzle game. Guess the secret color code with feedback pegs. Three difficulty levels
Memory Match
Card matching memory game with 4 emoji themes (animals, food, sports, nature), 3 difficulty levels, and timer
Minesweeper
Classic minesweeper with right-click flagging, timer, first-click safety. Beginner, Intermediate, Expert modes
Simon Says
Color pattern memory game with audio feedback. Repeat the sequence as it gets longer. Three speed settings
Snake Game
Classic snake game with three speed levels, pause/resume, mobile D-pad controls, and high score tracking
Sudoku
Sudoku puzzle generator and solver with auto-generated valid puzzles, hint system, and error highlighting
Tetris
Classic block-stacking puzzle game. Rotate and place falling tetrominoes to clear lines. Level up for faster drops.
Tic-Tac-Toe
Classic tic-tac-toe game with AI opponent using minimax algorithm. Three difficulty levels: Easy, Medium, Hard
Trivia Quiz
Test your knowledge with trivia! 5 categories (science, history, geography, entertainment, sports), timer, streaks
Typing Speed Test
Test your typing speed and accuracy with WPM tracking, accuracy measurement, high scores, and three difficulty levels
Whack-a-Mole
Click-based reflex game. Whack moles for points, grab golden moles for bonus, avoid bombs! Combo system
Wordle
Guess the 5-letter word in 6 tries. Color-coded hints show correct, present, and absent letters. Track your stats and streaks.