Free Online Tools

All tools work completely in your browser. No uploads, no accounts, complete privacy. Note: Some tools work better on desktop with larger screens.

What is Loopaloo?

Loopaloo is a free collection of 237+ online tools designed for developers, designers, content creators, and everyday users. Unlike traditional online tools that require you to upload files to a remote server, every tool on Loopaloo processes your data entirely within your web browser. Your files never leave your device.

Powered by modern web technologies including WebAssembly, the Web Audio API, Canvas, and Web Workers, Loopaloo delivers desktop-class performance for tasks like video conversion, image compression, PDF manipulation, and data analysis - all without installing any software or creating an account.

Whether you need to compress an image for your website, merge PDF documents for a meeting, convert an audio file for your podcast, or test a regular expression for your code, Loopaloo provides fast, reliable tools that respect your privacy.

237+
Total Tools
100%
Client-Side
Free
Forever

How It Works

1

Choose a Tool

Browse 237+ tools across 10 categories - from image processing and PDF editing to developer utilities and data analysis. Find exactly what you need using category filters or search.

2

Process in Your Browser

Your files are processed entirely on your device using WebAssembly and modern browser APIs. Nothing is uploaded to any server. Processing starts instantly with no wait time for file transfers.

3

Download Your Results

Get your processed files instantly. Download converted images, merged PDFs, trimmed audio, or formatted data directly to your device. No watermarks, no quality limits, no strings attached.

Why Choose Loopaloo

Privacy First

Your files are never uploaded to any server. All processing happens locally in your browser, ensuring complete data privacy and confidentiality.

Instant Processing

No upload delays. Files are processed using your device's computing power with WebAssembly delivering near-native performance directly in the browser.

No Installation

Use any tool directly from your browser on any device. No software to download, no plugins to install, no accounts to create. Just open and use.

Free Forever

Every tool is completely free with no hidden limits, no watermarks, and no premium tiers. Get full functionality without paid subscriptions or sign-ups.

Browse Tools by Category

Image Processing

Convert, compress, resize, crop, and apply filters to images. Extract text with OCR. Supports PNG, JPEG, WebP, SVG, AVIF, and more.

Audio Processing

Edit, trim, convert, and analyze audio files. Visualize waveforms, apply effects, and convert between MP3, WAV, OGG, FLAC, and AAC.

Video Processing

Trim, merge, convert, and compress video files. Extract audio, create GIFs, and work with MP4, WebM, AVI, and MOV formats.

Document & Text

Markdown editors, text diff tools, word counters, case converters, lorem ipsum generators, and more text utilities.

PDF Tools

Merge, split, compress, and convert PDF documents. Extract text and images, add watermarks, and reorganize pages.

CSV & Data Analysis

Parse, validate, transform, and visualize CSV files and structured data. Convert between CSV, JSON, XML, and generate charts.

Converters & Encoders

Encode and decode Base64, URL strings, and HTML entities. Convert number bases, color formats, and units of measurement.

Web Tools

JSON formatters, regex testers, hash generators, JWT decoders, CSS tools, and essential utilities for web developers.

Math & Science

Scientific calculators, function graphing, statistical analysis, matrix operations, unit converters, and number theory tools.

Games

Classic browser games including Snake, Tetris, Minesweeper, typing tests, memory games, and puzzles. No downloads needed.

Guides & Tutorials

In-depth writing on image compression, PDF optimization, audio formats, regex, and developer workflows and context to help you pick the right tool and understand what it does.

3D in the Browser: How WebGL and three.js Render Models

How WebGL and three.js render 3D models in the browser, as implemented in loopaloo's 3D Model Viewer: scene setup, file parsing, normals, GPU rasterization, lighting rigs, orbit controls, and why it all runs locally with no plugin.

Loopaloo·11 min read

Reading and Writing PDFs in JavaScript: pdf-lib vs PDF.js

A technical explainer on the division of labor between pdf-lib and PDF.js for reading and writing PDFs in JavaScript, grounded in loopaloo's real client-side PDF processor.

Loopaloo·13 min read

Barcode Symbologies and the Math of Check Digits

How barcode symbologies like EAN-13, UPC-A, and Code 128 differ, and how the mod-10 check digit works, with the arithmetic worked by hand on a real EAN-13.

Loopaloo·11 min read
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All Tools

Learn More

Explore our guides on image compression, PDF optimization, regex patterns, and more.

Visit the Blog

Found a bug? Contact us at support@loopaloo.com

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