Step 1: Transfer your AVI files using the button above or by slide and deposit.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Retrieve your converted MP4 files.
AVI to MP4 Conversion FAQ
How do I convert AVI to MP4?
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Converting AVI to MP4 repackages your video from the AVI container into MP4. MP4.to remuxes the streams without re-encoding where the codecs are compatible (fast and lossless), and transcodes only when the target needs a different codec.
Why would I convert AVI to MP4?
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You move your content from the AVI format into MP4 so it works in the apps, devices or workflows that prefer MP4.
Will converting AVI to MP4 reduce quality?
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When the codec inside AVI is compatible with MP4, MP4.to remuxes without re-encoding — zero quality loss. When the codec must change, the video is transcoded with a small, controllable generational loss.
How long does a AVI to MP4 conversion take?
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Short clips finish in seconds. Longer AVI videos run at roughly real-time or faster on our GPU encoders, so a half-hour recording typically lands in a few minutes.
Which MP4 settings should I choose?
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MP4 with H.264 is the safest, most universal MP4-family target. Use WebM for web embedding and MOV for Apple editing pipelines.
Is the AVI to MP4 converter free?
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Yes. Single-file AVI to MP4 conversion is free with no signup. A Pro plan unlocks very large files, unlimited batch jobs and advanced features, but everyday conversions cost nothing.
How large a AVI file can I convert to MP4?
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Free users can upload AVI files up to 100 MB — enough for most videos. Pro users go up to several GB per file and can queue large batches.
Can I convert several AVI files to MP4 at once?
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Yes. Drop multiple AVI files in one go and MP4.to converts them to MP4 in parallel. Free accounts handle a couple at a time; Pro accounts have unlimited batch conversion.
Do I need to install any software to convert AVI to MP4?
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No. The AVI to MP4 conversion runs entirely server-side in your browser — no Photoshop, Office, ffmpeg or any local install. Upload, convert, download.
Can I convert AVI to MP4 on my phone?
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Yes. MP4.to runs in any modern mobile browser, so iPhone, iPad and Android users can convert AVI to MP4 without an app. The MP4 result downloads straight to your device.
Are my AVI files kept private during conversion?
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Yes. Your AVI upload and the MP4 output travel over HTTPS, are never read by a human, and are deleted automatically from our servers shortly after the job finishes. No watermarks, no resale of your data.
Do I need an account to convert AVI to MP4?
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No account is required for basic AVI to MP4 conversions — you can convert immediately. A free account adds conversion history; a Pro plan adds large files, batch jobs and AI tools.