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MP4 to AVI converter
Convert MP4 (the universal H.264 video format) into AVI, which broad legacy software support. Everything happens locally in your browser — no uploads, no servers, and no waiting in a queue.
100% private — your file is processed locally and never leaves your device.
FAQ
MP4 to AVI — common questions
Is the MP4 to AVI converter free?
Yes — it's completely free, with no sign-up, no watermark, and no limit on how many files you convert.
Are my MP4 files uploaded to a server?
No. The conversion runs entirely in your browser, so your MP4 file never leaves your device and is never uploaded.
How do I convert MP4 to AVI?
Drop your MP4 file into the tool above, then click the convert button. The AVI file is generated locally and ready to download in moments.
Will I lose quality converting MP4 to AVI?
Quality is preserved as closely as the AVI format allows. For most web video the result is visually identical to the source.
Does this work on mobile?
Yes — it runs in any modern browser on desktop or mobile, with nothing to install.
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