Does TikTok support AVI files?
an older Windows container still produced by some capture and screen-recording tools
AVI is not listed for TikTok Content Posting API uploads.
The API lists MP4, MOV and WebM. This does not establish how every native composer handles AVI, and we have no recorded upload test to make that claim. For an AVI from an older capture tool, export an H.264 MP4 before using the API.
Recommended upload: MP4 with H264. AVI is not the platform's documented upload container; export as MP4 with H264 video for the safest upload.
Convert AVI to MP4 →Source: TikTok Media Transfer Guide. Content Posting API; native app/web acceptance may differ. Checked 2026-09-12.
Frequently asked
Does TikTok support AVI?
AVI is not listed for TikTok Content Posting API uploads. The API lists MP4, MOV and WebM. This does not establish how every native composer handles AVI, and we have no recorded upload test to make that claim. For an AVI from an older capture tool, export an H.264 MP4 before using the API.
What format should I convert AVI to for TikTok?
MP4 - a widely supported video container; acceptance also depends on the video and audio codecs inside it. Converting AVI to MP4 runs entirely in your browser with the converter linked below.
How do I check whether my AVI file will upload cleanly to TikTok?
Open the Koldflux File Doctor, drop in the file, and pick TikTok. It reads the container, codec, resolution, duration and file size locally and reports pass / warn / fail against the documented TikTok constraints.