Is the AVI to MOV conversion lossless?

It depends on the codec inside. H.264 streams are copied into the MOV container unchanged, which is fully lossless. DivX, Xvid, MJPEG, and DV are not MOV-compatible codecs, so those files are re-encoded, adding one lossy generation. The original AVI remains your reference copy either way.

Should I convert to MOV or MP4 for editing on a Mac?

Both import into Final Cut Pro and Premiere. MOV is the QuickTime-native wrapper, so it is the tidier choice when footage stays inside an Apple pipeline. Pick MP4 when the same file must also travel to Windows machines, web uploads, or slide decks afterwards.

Can Windows machines still open the MOV afterwards?

Mostly yes: VLC and the current Windows media apps handle MOV, but support in older corporate environments is less predictable than for MP4. Treat MOV as your editing-side format, and export an MP4 from the edit when a file has to go back to a mixed audience.

Is my video uploaded to a server?

No. The whole conversion runs in your browser. Your video is never sent to or stored on a server, so your privacy is preserved.

Can I convert large or long videos?

You can, but because everything runs in your browser, large/long videos and conversions that need re-encoding take time. We recommend files up to around 200MB.

Yes, it is completely free. No sign-up and no installation required.

Embed

AVI to MOV converter

Video tools

Convert AVI videos to MOV right in your browser — no upload, no watermark. When the codecs match it's a lossless remux; otherwise it re-encodes locally. Your video never leaves your device.

What is this AVI to MOV converter?

A free, browser-based tool that converts a AVI video to MOV. Add a file, preview it inline, and download the result. All processing happens locally in your browser, so your video is never uploaded and there is no watermark.

AVI from a Windows colleague, MOV for your Mac timeline

The typical trigger is a handoff: a Windows colleague digs event recordings or screen captures out of an old project folder, and they arrive on your Mac as AVI. QuickTime Player shrugs, Quick Look shows a generic icon, and the edit stalls before it starts.

MOV is the container the Apple ecosystem is built around. Moving the material into MOV gets you spacebar previews in Finder and clean imports into Final Cut Pro, which is worth doing once at the start rather than fighting the files mid-edit. Sorting the container out up front also beats discovering the problem close to a delivery date.

MOV takes H.264 as-is; the 2000s codecs go through a re-encode

MOV natively holds H.264 (and ProRes, among others). If the AVI already carries H.264, the conversion is a remux: the stream is copied into the MOV wrapper instantly and the image stays exactly as captured.

Files from the DivX, Xvid, or DV era carry codecs MOV does not accept, so they are re-encoded instead. That is one lossy generation, invisible on most material but a reason to archive the AVI originals rather than overwrite them. Either way, the resulting MOV behaves like native footage on the Mac.

How to use it

Add a AVI file on the left (drag & drop or click) — it shows an inline preview.
Pick a quality preset (used only when the video has to be re-encoded).
Press “Convert & download” to get your MOV file. The first run downloads the ~30MB converter once.

Lossless remux vs re-encoding

AVI and MOV are containers — what matters is the video codec inside. When the codec already fits MOV, this tool just repackages it (a "remux"): instant and completely lossless. Only when the codec isn't compatible — most often anything involving WebM — does it re-encode the video locally, which takes longer and is where the quality preset applies.

FAQ

Get in touch

Thanks for reaching out

Thank you for your interest in our company. A member of our team will get back to you within one business day.

What we can help with

Adopting and getting the most out of Timothe AI
AI adoption in general (beyond our own product, too)
Alliances and partnerships
Any other questions