Free Video to MP4 Converter

Convert AVI, MKV, WebM, WMV, FLV, MOV, and more to universally compatible MP4. Choose H.264, H.265, or instant remux.

FreeNo signup required10 formats supported

Drop your video file here

or click to browse • AVI, MKV, WebM, WMV, FLV, MOV, TS, M4V, 3GP, OGV

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10 Input Formats

Supports AVI, MKV, WebM, WMV, FLV, MOV, TS, M4V, 3GP, and OGV input files.

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Quality Control

Choose H.264 or H.265 with CRF quality slider, or use Copy mode for instant lossless remux.

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Web Optimized

Fast-start flag ensures instant streaming on YouTube, Instagram, and the web.

Frequently Asked Questions

What video formats can I convert to MP4?

You can convert AVI, MKV, WebM, WMV, FLV, MOV, TS, M4V, 3GP, and OGV files to MP4. Just upload your file and choose your preferred encoding settings.

What is the difference between H.264, H.265, and Copy mode?

H.264 is the most compatible codec, ideal for sharing on any device or platform. H.265 (HEVC) offers better compression at smaller file sizes but requires modern hardware. Copy mode (remux) simply changes the container without re-encoding — it is the fastest and preserves original quality.

Will quality be lost when converting to MP4?

In Copy mode there is zero quality loss. In H.264/H.265 mode you control the CRF value — a lower CRF means higher quality. The default CRF 23 produces excellent results for most content.