Curated collection of privacy-first tools that process files entirely in your browser. No uploads, no servers, no tracking.
All tools listed here process files entirely in your browser using client-side JavaScript. Your files never leave your device, and no data is sent to external servers.
| Tool Name | Website | What It Does |
|---|---|---|
| 📄 PDF Tools | ||
| PDF.io | pdf.io | Merge, split, compress, and convert PDF files locally |
| PDFTron | pdftron.com/webviewer | Browser-based PDF viewer and annotator |
| Stirling-PDF | github.com/Stirling-Tools | Self-hosted PDF manipulation tool (can run fully local) |
| 🖼️ Image Tools | ||
| Squoosh | squoosh.app | Image compression with multiple formats (Google project) |
| Photopea | photopea.com | Advanced browser-based photo editor (Photoshop alternative) |
| EXIF Remover | exifremove.com | Remove metadata and EXIF data from photos |
| Compressor.io | compressor.io | Optimize and compress images without quality loss |
| 📝 Text & Document Tools | ||
| CryptPad | cryptpad.fr | Encrypted collaborative documents, spreadsheets, and more |
| PrivateBin | privatebin.info | Encrypted pastebin with client-side encryption |
| 🎬 Video & Audio Tools | ||
| FFmpeg.wasm | ffmpegwasm.netlify.app | Video/audio conversion and editing in browser using WebAssembly |
| Audio Mass | audiomass.co | Browser-based audio editor and recorder |
| 🔐 Security & Encryption | ||
| Bitwarden | bitwarden.com | Open-source password manager with client-side encryption |
| Password Generator | passwordsgenerator.net | Generate secure passwords locally in browser |
| 🔄 File Conversion | ||
| CloudConvert | cloudconvert.com | Multi-format file converter (Note: Has both server and local modes) |
| Online-Convert | online-convert.com | Convert various file formats (Note: Check their privacy policy) |
While these tools claim to offer client-side processing, we recommend verifying using our verification guide. Some tools may have both local and server-side modes.
Building a tool that respects user privacy? We'd love to feature it in our directory. All tools are manually verified before listing.
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