AVI to MP4 Converter
Drop in an AVI and get back an MP4 that modern devices actually play. Converted in your browser, on your machine, with nothing uploaded.
Drop your AVI here
Camcorder tapes, DivX files, old downloads. All welcome.
Converts on your device. Your file never leaves this page.
- DivX and Xvid era files
- Old camcorder footage
- No upload, converts on-device
- Free, no sign-up, no watermark
A converter that stays out of your way.
There’s no upload bar and no sign-up wall. You get your file back as an MP4, and that’s the whole transaction.
AVI in, MP4 out
Drop in a AVI file and get back an MP4 that plays on phones, TVs, editors, and upload forms alike. Same name, same footage.
Fast when the file allows it
When the video inside is already MP4-friendly, it gets repackaged in seconds with zero quality loss. Only files with older codecs need a real re-encode.
Your video stays on your machine
Most online converters upload your footage to their server. This one doesn't. The work happens inside this browser tab, and closing the tab clears everything.
Sound handled too
The audio track comes along automatically, converted only if the format demands it. Videos without sound convert just the same.
The format your old hard drive is full of
Anyone who had a computer in the 2000s has AVIs somewhere: camcorder captures, digital camera clips, downloads from an internet that has since moved on. The container had a good long run. But its codecs, DivX and Xvid and their cousins, quietly fell out of every device made in the last decade, and the files became furniture.
The footage inside is usually fine. This page re-encodes it into a modern MP4, in your browser, without the files leaving the machine they’ve been sitting on all these years. Old family video especially has no business being uploaded to a stranger’s server just to become playable again.
What the conversion actually does
AVI files are the honest re-encode case: the old codec gets decoded and written fresh as H.264, and the audio (often MP3, which MP4 accepts as-is) comes along, copied untouched when it can be. The output plays on phones, TVs, editing timelines, and photo libraries, and it’s written to start streaming instantly if you ever host it somewhere.
Because the source footage is nearly always standard definition, conversions run quick and the files come out small. What you lose in theory to re-encoding, you’d never pick out of a 720x480 home video.
A rescue plan, one file at a time
The right way to work through a folder of old clips: convert the ones that matter first, watch each MP4 to confirm the memory is intact, and keep the AVIs until you’re sure. This tool does one file per drop on purpose; it’s a rescue kit, not a bulk migration service, and old footage deserves the moment of attention anyway.
How to convert AVI to MP4
Three steps, less than a minute. No setup, no sign-up.
Drop in the AVI file
Drag it into the box above, or click Choose a file and pick it from a folder.
Let it work
Most AVI files just get repackaged and finish in seconds. Files that need a real re-encode take longer; the progress bar tells it straight either way.
Save the MP4
Hit Download and the MP4 lands with the same name as the original, ready to play, edit, or upload anywhere.
AVI to MP4 converter FAQ
AVI is a 1992 container, and the codecs inside (DivX, Xvid, Motion JPEG from old cameras) faded out of built-in support years ago. VLC still plays them; phones, TVs, and web apps mostly don't. Converting to MP4 with a modern codec inside fixes both halves at once.
These files almost always need a real re-encode, so a little, in theory. In practice the source is usually standard-definition footage from decades ago, and the conversion preserves what's there. The bigger risk to old footage is the file staying in a format nothing opens.
AVI-era files are small by modern standards, standard definition and modest bitrates, so even a full re-encode moves quickly. A typical clip finishes in a minute or two; a feature-length file is a leave-the-tab-open job.
Yes, that's the classic case: digital cameras and camcorders from the 2000s wrote AVI, often Motion JPEG. They convert cleanly, and the resulting MP4s can finally go in the family photo library alongside everything else.
No. Everything runs inside this browser tab, on your machine. Decades-old family footage stays exactly as private as it's always been.
This converts files you already have. Vidferry goes and gets them.
Paste a link from YouTube, Vimeo, or 1,000+ other sites and the Vidferry app saves the video as a clean MP4 directly, whole playlists included, at your machine's full speed. Same privacy, $12 once.
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Paste your first link in under a minute. $12 once, yours to keep, on Mac and PC.