The best converter u can find. Most sites doesnt allow morethan 2GB for free and but this sites allow and the video quality is the same
Convert AVI to MP4 — Free, Fast, No Limits
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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.
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Step 2: Our cloud converts your video to MP4. Most jobs finish quickly. Keep this tab open until it’s done.
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Step 3: Hit <em>Download</em> and play your new MP4 on any device or add it to your editor.
Audio Codec:
Video Codec:
Resolution:
Pick your preferred settings, or leave 'Auto' for the best defaults (note that recognition processes may take more time).
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.
User reviews
Users rely on our AVI to MP4 converter to easily play older video files on modern devices and media players.
Discover why thousands of users choose Converter App. Read verified Trustpilot reviews from people turning AVI video files into widely compatible MP4s daily.
4.8
Based on the 430 reviews
Collected after conversion
Measured on our servers
What to expect when converting AVI to MP4
Real numbers from every conversion on this tool since 24 October 2026. Nothing here is estimated: we record how long each job took and how large the files were. File names and contents are never stored.
1.9 min
Typical processing time
for a 439 MB file (median)
3,302
Conversions
since 24 October 2026
8.53 GB
Largest file converted
since 24 October 2026
-41%
Output size
about 41% smaller than the input
Expected time by file size
How long conversions take
share of all conversions
- under 1 s2%
- 1–10 s13%
- 10–60 s13%
- 1–5 min56%
- over 5 min16%
Times are server processing only, measured after the upload finished; upload and download are not included. Large files take longer, but the limit is the same for everyone: no account, no queue priority to buy. Updated 2026-11-03