🔄 Video Converter

Convert a video to MP4, MOV or WebM without uploading it. MP4 is the safest choice for most players and social platforms; WebM is useful for the web but encodes more slowly.

Runs entirely in your browser with FFmpeg.wasm. No upload, no account, no video stored anywhere, and no watermark added by this site.

📁 Drop a video here, or choose a file

MP4, MOV, WebM and other common video files. One file at a time. Files are processed in your browser only — nothing is uploaded.

Choose video

Output format

Before you press Process: the video engine is about 32 MB and downloads only when you press Process — never on page load. Your video never leaves this device. No account, no artificial limit; speed depends on your device and browser.

How to use it

Choose a video file.
Choose the output format: MP4, MOV or WebM.
Press Convert Video and wait for processing.
Download the converted file.

Supported formats and limitations

Your video never leaves your device. Processing runs in your browser with FFmpeg.wasm; there is no upload, no account and no server copy.
The video engine (about 32 MB) is downloaded only after you choose a file and press Process — never automatically when the page loads.
There is no artificial usage limit and no account. Real speed and maximum size depend on your device and browser: large or long videos are slower and may run out of browser memory. A warning is shown for very large files, but no file is hard-blocked for size alone.
Conversion re-encodes the video. MP4 and MOV use H.264 video and AAC audio; WebM uses VP9 video and Opus audio, which is slower.
Some unusual source codecs may not decode in the browser engine. If conversion fails, try converting the source to MP4 first with another tool.
No artificial usage limit: capacity depends on your device and browser. Large or long videos are slower and may run out of browser memory.

Frequently asked questions

Which format should I choose?

Choose MP4 for the widest compatibility, MOV when an Apple workflow asks for it, and WebM for web pages that prefer open formats.

Why is WebM slower?

VP9 encoding is more demanding than H.264, especially on a phone. Allow extra time and keep the clip short if you are in a hurry.

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