All tools work completely in your browser. No uploads, no accounts, complete privacy. Note: Some tools work better on desktop with larger screens.
Found a bug? Contact us at support@loopaloo.com
Generate .gitignore files for any project. Pre-built templates for Node.js, Python, React, Java, Go, Rust, and 50+ more technologies.
Slide numbered tiles to combine and reach 2048! Features touch/swipe support, undo functionality, and score tracking
Plot and visualize 3D mathematical functions and surfaces
Calculate aspect ratios, resize dimensions while maintaining proportions. Common presets for video, photo, mobile screens, and social media
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.
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.
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.
Combine multiple audio files into one track. Drag and drop to reorder, merge MP3s, WAVs, and other formats. Create seamless audio compilations online.
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.
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.
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.
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.
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.
Generate barcodes in CODE128, CODE39, EAN13, UPC formats
Encode and decode text or files to/from Base64
Casino blackjack card game. Hit, stand, or double down! 6-deck shoe, dealer stands on 17, blackjack pays 3:2
Ball and paddle brick breaker game. Break all bricks for points! Mouse/touch controls, colored brick rows
Create reusable checklists with nested items, 4 templates (Project Launch, Travel Packing, Weekly Review, Event Planning), progress tracking, and Markdown export
Calculate file checksums and verify integrity (MD5, SHA-1, SHA-256)
Calculate molar mass, pH, and molarity for chemistry problems
Minify or beautify code in 7 languages: JavaScript, TypeScript, CSS, HTML, JSON, XML, SQL with compression visualization
Add syntax highlighting to code in 22 languages with 7 color themes, line numbers, and export to HTML
Test how your images and designs appear to people with different types of color vision deficiency including protanopia, deuteranopia, tritanopia, and more
Convert between HEX, RGB, HSL, and CMYK color formats
Generate harmonious color schemes using color theory
Professional color picker with saturation-brightness canvas, hue slider, HEX/RGB/HSL/HSB formats, saved colors palette, contrast calculation, and preset colors
Build and understand cron expressions with a visual interface. See next scheduled runs, use common presets, and generate cron syntax for scheduled tasks
Create custom border radius with individual corner control, linked/unlinked mode, px/% units, interactive corner sliders on preview, and 12 shape presets
Design complex box shadows with multi-layer support, inset shadows, visibility toggle, layer reordering, opacity control, and 12 professional presets
Design custom CSS buttons with text, background (solid/gradient), border, shadow, and hover effects controls. 12 presets including 3D, Neon, Ghost, and Pill styles
Create stunning CSS gradients with linear/radial/conic types, angle control, position control, multiple color stops, 11 presets, and reverse/randomize features
Filter and select specific columns from CSV files
Rename CSV columns with live preview
Transform CSV columns with 25+ operations: text manipulation (uppercase, lowercase, trim), number formatting, date conversion, extraction patterns, and custom pipelines
Automatically identify column data types
Validate CSV data against custom rules
Identify and remove duplicate rows from CSV files
Compare two CSV files side-by-side, find added/removed/modified rows, key-based or positional matching, highlight differences, and download comparison report
Pretty-print, validate, and clean up CSV files
Combine multiple CSV files into one
Find and report empty cells and missing values
Create pivot tables with 11 aggregation types including sum, count, avg, median, stddev, first, last, and concatenate
Filter rows based on custom criteria and conditions
Find and replace values with regex support
Sort CSV data by multiple columns with custom ordering
Split large CSV files into smaller chunks by row count
Calculate min, max, average, median, and more for CSV data
Export CSV files as Excel (XLSX/XLS) format
Convert between CSV and JSON formats
Generate SQL INSERT and CREATE TABLE statements
View and edit CSV files in a spreadsheet-like interface
Convert between 30+ world currencies with offline exchange rates
Calculate exact age in years, months, and days. Find date differences, countdowns, zodiac signs, and detailed time breakdowns
Free online drawing canvas and whiteboard. Draw, sketch, and create with brushes, shapes, colors, undo/redo, and export to PNG or JPG.
Solve linear and quadratic equations with step-by-step solutions
Create favicons from text, emojis, or images with all device sizes (16x16 to 512x512), background/text color customization, border radius control, and batch download
Calculate loans, mortgages, compound interest, and ROI
Navigate through pipes in this side-scrolling game. Features animated bird, increasing difficulty, and high scores
Discover beautiful font combinations with 12 curated Google Fonts pairings, live preview, mood filters, usage tags, CSS import/variables export, and favorites
Add, subtract, multiply, divide, and simplify fractions
Calculate area, perimeter, volume, and surface area of shapes
Plot and visualize mathematical functions with multiple overlays
Remove green screen backgrounds with professional chroma key. Adjustable color picker, similarity threshold, and edge blending. Export with transparency (MOV with alpha channel).
Generate haiku poems with 10 themes: Nature, Zen, Ocean, Love, Technology, Space. Save favorites, custom words, export as image
Word guessing game with 5 categories (animals, countries, food, technology, sports), SVG animation, and hints
Generate MD5, SHA1, SHA256, SHA384, SHA512 hashes from text
Bidirectional HTML and Markdown converter with GitHub Flavored Markdown, tables, live preview, and customizable output styles
Encode and decode HTML entities. Supports named entities (&), numeric (&), and hex (&) formats. Escape special characters for HTML.
Complete HTTP status code reference with descriptions. Search all 1xx, 2xx, 3xx, 4xx, and 5xx status codes with explanations
Annotate images with arrows, shapes, text, highlights, and blur regions. Perfect for screenshot markup, tutorials, and documentation.
Remove backgrounds from images with smart edge detection. Supports color picker, corner detection, and preset colors with adjustable tolerance.
Process multiple images at once with consistent settings. Apply resize, format conversion, compression, and filters to bulk images efficiently.
Create beautiful photo collages with flexible grid layouts. Features customizable spacing, background colors, borders, and multiple arrangement options.
Professional color grading: adjust brightness, contrast, saturation, hue, shadows, highlights, and temperature. Create cinematic looks with color curves.
Extract dominant, vibrant, or muted colors from images. Generate color schemes with HEX, RGB, HSL values and export palettes for design projects.
Compress images to reduce file size while maintaining visual quality. Supports lossy and lossless compression with real-time preview and size comparison.
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.
Detect and highlight edges using Sobel, Canny, and other algorithms. Features threshold control, direction filters, and contour extraction.
Apply professional photo filters: blur, sharpen, grayscale, sepia, invert, vintage, and more. Features preset effects and custom adjustments for stunning results.
Convert images between PNG, JPG, WebP, AVIF, BMP formats. Features quality control, transparency support, and batch conversion for efficient workflow.
Analyze color distribution with RGB, luminance, and individual channel histograms. Features exposure analysis, statistics, and comparison tools.
Strip EXIF, GPS, camera data and other metadata for privacy. Features selective removal, batch processing, and metadata preview before removal.
Read EXIF, IPTC, XMP metadata from images. View camera settings, GPS location, date taken, color profiles, and technical image properties.
Create pixelated effects with square, circle, diamond, or hexagon shapes. Features presets for retro gaming, mosaic art, and privacy blur effects.
Resize and scale images with smart aspect ratio control. Supports custom dimensions, percentage scaling, social media presets, and batch resizing while maintaining image quality.
Rotate images to any angle and flip horizontally or vertically. Features precise degree control, 90° quick rotations, and straightening tools.
Extract text from images using advanced OCR. Supports 18+ languages, page segmentation modes, confidence scores, and multi-format export.
Convert images to ASCII text art with customizable character sets. Features width control, color/monochrome modes, and multiple character density options.
Generate favicons and app icons in all required sizes. Supports iOS, Android, Windows, and web platforms with one-click preset generation.
Add text or image watermarks to protect your photos. Features position control, opacity adjustment, tiled patterns, and batch processing for copyright protection.
Format, validate, minify JSON with JSONPath queries, tree view explorer, schema validation, diff comparison, and sort keys. Multiple indent styles
Decode and inspect JSON Web Tokens (JWT). View header, payload, claims, expiration status, and signature without needing the secret key
Generate placeholder text in 8 styles: Classic Lorem, Hipster, Corporate, Pirate, Bacon, Zombie, Space, and Custom vocabulary with words/sentences/paragraphs
Full-featured Markdown editor with live preview, GitHub Flavored Markdown, syntax highlighting, table of contents, export to HTML/PDF, and multiple themes
Code-breaking puzzle game. Guess the secret color code with feedback pegs. Three difficulty levels
Perform matrix operations including multiply, transpose, and inverse
Card matching memory game with 4 emoji themes (animals, food, sports, nature), 3 difficulty levels, and timer
Classic minesweeper with right-click flagging, timer, first-click safety. Beginner, Intermediate, Expert modes
Generate realistic fake data for testing and development. Create names, emails, addresses, phone numbers, and more. Export to JSON or CSV format
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.
Convert numbers between binary, octal, decimal, and hexadecimal
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.
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.
Generate ultra-secure passwords with presets (Simple to Paranoid), strength analysis, entropy calculation, crack time estimation, password history, and bulk generation
Analyze password security with 10 criteria checks, entropy calculation, crack time estimation, character breakdown, warnings, and improvement suggestions
View and export comments and annotations
Reduce PDF file size with quality control
Crop PDF page margins to remove whitespace
Add custom headers and footers with page numbers
Extract embedded images (photos, logos) from PDF
Combine multiple PDF files into one document
Remove specific pages from a PDF document
Reorder pages in a PDF by dragging and dropping
Rotate individual pages or all pages in a PDF
Split a PDF into individual page files
Extract all text content from a PDF document
Arrange PDF pages for booklet printing
Render each PDF page as a PNG or JPG image
Add text watermarks to protect your PDFs
Calculate force, energy, kinematics, and power in physics
Generate placeholder images for mockups, wireframes, and development. Custom dimensions, colors, text. Presets for social media, avatars, web. Export as PNG, JPG, or SVG.
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
Check if a number is prime and find prime factorization
Generate QR codes from text or URLs
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
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.
Advanced calculator with scientific functions and history
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.
Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.
Color pattern memory game with audio feedback. Repeat the sequence as it gets longer. Three speed settings
Create URL-friendly slugs from text for SEO and clean URLs
Classic snake game with three speed levels, pause/resume, mobile D-pad controls, and high score tracking
Calculate mean, median, mode, standard deviation and more
Sudoku puzzle generator and solver with auto-generated valid puzzles, hint system, and error highlighting
Convert text between 12 cases: UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Sentence, and Alternating
Compare texts with side-by-side and unified diff views, line-by-line or character-level comparison, change statistics, and export to patch file
Encrypt text with 12 methods: Caesar, Vigenère, XOR, Atbash, ROT13, Base64, Morse, Binary, Hex, Affine, Rail Fence ciphers
Analyze text complexity, readability, and detailed statistics
Convert text to speech using browser Web Speech API. Choose from multiple voices, adjust speed and pitch, and play audio directly.
Classic tic-tac-toe game with AI opponent using minimax algorithm. Three difficulty levels: Easy, Medium, Hard
Add, subtract, and calculate time differences
Dual-mode time tracker with stopwatch including lap times (fastest/slowest highlighting), countdown timer with presets, sound alerts, and browser notifications
Convert time between different timezones worldwide
Organize tasks with priorities (low/medium/high), due dates, tags, smart filtering, search, sorting, stats dashboard, import/export, and local storage persistence
Test your knowledge with trivia! 5 categories (science, history, geography, entertainment, sports), timer, streaks
Test your typing speed and accuracy with WPM tracking, accuracy measurement, high scores, and three difficulty levels
Convert length, weight, temperature, and volume units
Convert between Unix/Epoch timestamps and human-readable dates. Supports seconds and milliseconds with timezone information
URL encode or decode text for safe use in URLs
Analyze any URL for phishing, suspicious patterns, and security risks. Detects login keywords, suspicious TLDs, encoded characters, brand impersonation, and more
Parse and analyze user agent strings to extract browser, OS, device type, and rendering engine information
Generate random v4 UUIDs with multiple format options
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Transform voices with 9 effects: Chipmunk, Deep Voice, Robotic, Alien, Echo, Telephone, Monster, Whisper, and Helium. Includes pitch shift, filters, distortion, and modulation controls.
Click-based reflex game. Whack moles for points, grab golden moles for bonus, avoid bombs! Combo system
Find your public IP address, location, timezone, and ISP information instantly. Free, fast, and private IP lookup tool
Count words, characters, paragraphs, sentences with reading time, speaking time, readability scores (Flesch, Gunning Fog), and word frequency analysis
Format, validate XML with XPath queries, interactive tree view, XML-to-JSON conversion, and multiple color themes
Format, validate, and convert between YAML and JSON formats. Live validation, syntax highlighting, and bidirectional conversion.
Build a personal knowledge base with [[bidirectional links]], tags, backlinks, search, note metadata, and import/export. Implements Zettelkasten method