Free file tools that run in your browser
Compress, convert and resize images and PDFs — without uploading anything. Every tool on FileWren processes your files locally on your device. No sign-up, no watermarks, no waiting for uploads.
- Private by design. Files never leave your device.
- Actually free. No accounts, no limits hidden behind a paywall.
- Fast. No upload and download round-trip — even for big files.
Image Tools
Compress Image to Under 8MB
Shrink any image below the 8MB Discord upload limit without visible quality loss.
Resize Image to 1280×720
Resize any picture to exactly 1280×720 pixels for YouTube thumbnails.
HEIC to JPG Converter
Convert iPhone HEIC photos to JPG right in your browser.
Crop Image to Circle
Make a round profile picture from any photo, with transparent background.
Image to PDF
Combine JPG or PNG pictures into a single PDF document.
WebP to PNG Converter
Convert WebP images to PNG so they open anywhere.
PDF Tools
Why in-browser tools?
Most online file tools upload your document to a server, process it there, and send it back. That works — but your file has now been on someone else's computer, and you're trusting them to delete it. FileWren takes a different approach: the whole tool is delivered to your browser as code, and your file is processed right on your device using technologies like WebAssembly and the Canvas API. Nothing is transmitted, so there is nothing to leak, log or delete. It's also faster, because a 50MB file doesn't need to travel anywhere.