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Favtoo — Free Browser Tools

About Favtoo

Favtoo is a collection of 1000+ free online tools for PDF, images, video, audio, text, and developer utilities — all running entirely in your browser using open web technology. Because every tool runs on your own device, the only real limit is your hardware: if your machine can hold the file, the tool can process it.

Our Mission

Essential digital tools should be free, fast, and private. Favtoo processes every file locally on your device — the bytes stay in your browser tab and the tool runs entirely on your CPU using modern browser APIs.

Privacy by Design

Your files are processed entirely on your device using WebAssembly and the Canvas API. Nothing is uploaded. Nothing is stored. When you close the tab, everything is gone.

Built on Open Source

Favtoo is powered by open-source libraries including pdf-lib, PDF.js, ExcelJS, heic-to, and others. We credit every library on our open-source page.

Free to Use

Core tools on Favtoo are free to use and supported by non-intrusive advertising shown only during natural wait states — never blocking your work.

How It Works

Favtoo processes everything locally using modern browser technologies:

  • WebAssembly (WASM) — runs compiled libraries at near-native speed inside your browser
  • Canvas API — handles image manipulation and rendering without a server
  • Web Workers — keeps the UI responsive during heavy processing
  • File API — reads and writes files entirely on your device

Learn more on our How It Works page.

Get in Touch

Questions, feedback, or tool suggestions? Email [email protected].