LOCAL FILES. CLEAR RESULTS.
Video to MP4
Convert MOV, WebM, MKV and AVI containers to H.264 MP4 locally.
How to use this tool
- Choose up to four supported files from your device.
- Adjust output settings. For GIF, choose a short segment and width.
- Run the conversion, preview the result and download each successful file.
Keep the original files and inspect the exported result before publishing or sharing it. Processing happens on this device; engine and library assets download when needed.
Frequently asked questions
Will every MOV, AVI or MKV work?
These are containers, and the codec inside determines compatibility. Common inputs work with the bundled FFmpeg engine; encrypted, damaged or unusual streams may fail.
Does converting preserve the original quality?
No. Video is encoded to H.264 and audio to AAC, which are lossy. The selected resolution is a maximum; small sources are not enlarged. Subtitle tracks are not copied.
Are my files uploaded?
No. FFmpeg runs on your device. The engine assets download on first use; your selected media stays in browser memory. Each file is limited to 150 MiB and each batch to 250 MiB.
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