About FreeOnlineConverters.cc

FreeOnlineConverters.cc is a privacy-first collection of free browser-based converters for video, audio and images. Everything runs locally on your device using WebAssembly and HTML5 Canvas — your files never leave your computer.

What we do

We started because most online converters force you to upload private photos and videos to a server. That's risky, slow, and often costs money for large files. FreeOnlineConverters.cc does the opposite: we compile tools like FFmpeg to WebAssembly (WASM) so MP4 to MP3, MOV to GIF, image resize, HEIC to JPG, WebP conversion and batch ZIP export all happen 100% offline in your browser tab.

Why local processing matters

Privacy: No server upload, no tracking of your media. EXIF GPS data is stripped automatically.
Speed: No waiting for uploads/downloads. 4K image resize is instant on modern devices.
Free forever: No credits, no watermarks. We support the site with optional ads (only after you accept cookies).
Works offline: Once loaded, the image resizer works without internet.

Tools included

Video & Audio tab: MP4, MOV, MKV, WebM, AVI to MP3, WAV, GIF, trimming, compression using ffmpeg.wasm. Image tab (ResizeFlow): resize JPG, PNG, WebP, AVIF, GIF, SVG, HEIC, batch resize, crop with safe zones for Shorts/Reels/TikTok, rotate, flip, transparent background, eyedropper, compare original vs edited.

Who built it

Built by Sehmus (memoliro) in Montreal, Canada — a developer focused on privacy tools. The project is open on GitHub: github.com/memoliro/freeonlineconverters.cc — 78 commits and counting.

Our commitment to quality

We don't copy content. All guides, presets (YouTube 1920x1080, Shorts 1080x1920, Instagram 1080x1080, 4K) and help text are written from real editing experience. If you find a bug, use the contact page.