Convert AVI to MP4 — Free, Fast, No Limits
- Step 1: Drag an AVI file here or use the file picker on the left. Big files are welcome, even over 1 GB. The upload starts right away.
- Step 2: Our cloud converts your video to MP4. Most jobs finish quickly. Keep this tab open until it’s done.
- Step 3: Hit Download and play your new MP4 on any device or add it to your editor.
Convert large AVIs to MP4
Upload an AVI, get an MP4. It’s quick, private, and free. We accept large videos over 1 GB, and there’s no daily cap under fair use.
Fast and Easy to use
Drag, drop, convert. Upload an AVI and get an MP4 in seconds. Use the defaults, or tweak simple options like codec, resolution, and audio.
Free Forever — No Limits or Sign-Up
Conversion is completely free. No trials, no watermarks, and no account needed.
Multiple Codecs supported for Compatibility
Leave settings on Auto for a balanced result. Choose H.264 for maximum compatibility, H.265 for smaller files on newer devices, or VP9 for web delivery. AAC is a reliable audio default, while Opus is great for speech. Keeping the original frame rate usually preserves motion best.
Built by Converter App — Trusted and Fast
Converter App powers this tool with a fast, privacy-minded platform used by millions.
Privacy-First Conversion
Your video is processed in temporary memory and removed automatically after conversion. We do not store or inspect your content.
AVI to MP4 converter quality rating
4.8 /
5 (based on
246 reviews
)