Convert MP4 to AVI
MP4 to AVI converter: upload, click convert, download the result. Free, no watermarks, no account. Small files convert inside your browser (never uploaded). Larger ones go to our server and disappear automatically after a few minutes. Hit "Delete now" to wipe them instantly after download.
How to convert
- Pick your MP4 file - drag it onto the dropzone or click to choose.
- The target format AVI is already selected.
- Hit Convert and wait a few seconds. Larger files take longer.
- Download the result. Press Delete now to wipe the server copy immediately.
When to use it
- Social media uploads - MOV / MKV / AVI → MP4 (universal everywhere).
- Web - MP4 → WebM for lighter in-browser loading.
- GIF clips - MP4 → GIF for memes and tutorials.
- Extract audio - MP4 / MKV → MP3 / WAV.
- MP4 → AVI - the most common reason for this pair.
Frequently asked questions
AVI is the legacy format some old Windows video editors, DVRs and CCTV systems still require. MP4 is the modern norm. Convert MP4 to AVI only when an old tool refuses to read MP4 — file size grows and quality stays the same.