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How it worksTrained on thousands of hours of motion designReplicate any adPoint at an ad you love, get your ownFour cuts to pick fromEvery brief comes back four different waysChat to re-cutEvery video is a script you edit in plain languageGitHub → SlackWatches your repo, delivers to your channelProduct tourThe full walkthrough of the studio

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Motion LibraryAn interactive reference of motion techniquesLaunch Video LibraryThe best real launch videos, broken downExamplesReal videos and the prompts that made themFree toolsConvert, compress & trim video in your browserCompareImpractical vs Claude Code, agencies, Runway

Free tools · Convert

AVI to MP4

Convert a legacy AVI video into a standard H.264 MP4 that plays on phones, browsers, and every social platform. Runs in your browser — no upload, no watermark.

Runs entirely in your browser. Your file is never uploaded — no watermark, no account.

How to use AVI to MP4

  1. 1

    Choose your file. Drop a file into the tool, or click to select one. It stays on your device — nothing is uploaded.

  2. 2

    Pick your settings. Adjust the options if you like, then press Run. The first run downloads a ~32 MB engine once; after that it's instant.

  3. 3

    Download. Everything is processed right in your browser — download the finished file instantly, with no watermark.

Frequently asked questions

Is AVI to MP4 free? Is there a watermark?
Yes — AVI to MP4 is completely free, with no sign-up, no watermark, and no limit on how many files you process.
Do my files get uploaded to a server?
No. AVI to MP4 runs entirely in your browser with WebAssembly, so your AVI file never leaves your device and nothing is stored or seen by us.
What can I put in, and what do I get out?
AVI to MP4 accepts AVI and gives you back a MP4 file.
Will I lose quality converting to MP4?
No noticeable loss for most files — AVI to MP4 uses high-quality settings (a two-pass colour palette for GIFs, H.264 at a visually-lossless quality for video), so the result stays crisp.