FreeToolBox
61 free browser tools. Files never leave your device.
3 followers
61 free browser tools. Files never leave your device.
3 followers
FreeToolBox is a free collection of 61 online tools for PDF, image, video, and developer tasks. Everything runs in your browser using WebAssembly. Your files are never uploaded to any server. Compress PDF & images without sending them anywhere. Remove image backgrounds fully offline. Convert, merge, split, rotate PDFs locally. No account. No watermark. No file size limits. No subscription. Forever free.
This is the 3rd launch from FreeToolBox. View more
FreeToolBox
Launching today
FreeToolBox is a free collection of 61 online tools for PDF, image, video, and developer tasks. Everything runs in your browser using WebAssembly. Your files are never uploaded to any server. Compress PDF & images without sending them anywhere. Remove image backgrounds fully offline. Convert, merge, split, rotate PDFs locally. No account. No watermark. No file size limits. No subscription. Forever free.
Free
Launch Team
Quick technical note for anyone curious about how the "local processing" actually works:
- PDF operations use pdf-lib and PDF.js compiled to run entirely in the browser
- Video processing uses FFmpeg.wasm ā the full FFmpeg compiled to WebAssembly
- Background removal runs a U2-Net neural network model via ONNX Runtime, completely offline
- Image operations use Canvas API + WebAssembly helpers
The biggest challenge was getting FFmpeg.wasm to handle large video files without crashing the browser tab. Had to implement chunked processing and memory management to keep it stable.
Happy to answer any technical questions! š ļø