Free tools
Convert AVI to MP4 for free
Convert AVI to MP4 in your browser: choose an .avi file, convert it, and download the MP4. No signup, nothing uploads.
Drop a file or click to choose
Free · no signup · runs in your browser · nothing uploads
Want the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWant the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWhy is this free? Hushscript runs it entirely in your browser. No server processes your file, so there's nothing to charge for.
How to convert AVI to MP4
Choose an .avi file from your device, run the conversion, then download the .mp4 result. This AVI to MP4 converter works in your browser without a signup or a video upload. Keep the tab open while it processes the file.
Convert an old AVI file to a playable MP4
AVI is a container from many older phones, cameras and software that current browsers, phones and editors increasingly won’t open on their own, so converting it to MP4 makes the video playable and shareable again. AVI files commonly hold older codecs like Xvid, DivX or MJPEG, which this tool re-encodes at roughly real-time speed; the first conversion also downloads the converter engine, about 31 MB, which later conversions on the page reuse.
Need a transcript from your AVI?
Video transcription is a separate, gated service. Hushscript prepares audio from a local video file in your browser and uploads that prepared audio for speech recognition; the source video stays on your device. Eligible personal accounts can receive 30 free minutes once after successful card verification, or with their first purchase if not already granted. Transcribe a video after signing in.
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Frequently asked questions
Is this AVI to MP4 converter free?
Yes. Converting an AVI file to MP4 here is free and needs no account. The file is processed in your browser and is not uploaded for conversion.
Does converting AVI to MP4 upload my file?
No. The conversion runs locally in your browser. You choose the AVI on your device and download the MP4 from the same page.
Why convert AVI to MP4?
AVI is an older container that many phones, browsers and editing tools no longer open directly, so converting it to MP4 makes the video playable and shareable again.
How fast is the conversion?
AVI files commonly hold older codecs such as Xvid, DivX or MJPEG, which this tool re-encodes at roughly real-time speed. The first conversion also downloads the converter engine, about 31 MB, which later conversions on the page reuse.
Can I convert several AVI files at once?
This converter handles one file at a time. Choose and convert another file after downloading the first result.
Can I transcribe the AVI instead?
Yes, through Hushscript's separate transcription service. Sign in to upload prepared audio from a local video file, with speaker detection if needed.
Need the words? Transcribe it with 30 free minutes
Preview up to 5 minutes before you create an account, and a new personal account gets a free preview of its first upload in the app. Full transcription needs an account and minutes; eligible personal accounts get 30 free minutes once, after card verification or with a first purchase. No subscription.
Get 30 free minutes