Quick answer
Use 1080 x 1920 pixels at 9:16 for a full-screen TikTok video. TikTok's current Content Posting API accepts 360 to 4096 pixels for both width and height, MP4, WebM, or MOV, 23 to 60 frames per second, and files up to 4 GB. The creator's actual duration permission still controls what can publish.
Source check: August 28, 2026. Platform apps, APIs, account types, and third-party publishers can change on different schedules. The final operational check is the preview and public result in the exact path you use.
At a glance
| Surface or choice | Size or limit | Ratio or source | What it means |
|---|---|---|---|
| Full-screen working canvas | 1080 x 1920 | 9:16 | Practical TikTok default |
| API dimension range | 360 to 4096 px per side | Varies | Current TikTok restriction |
| Video formats | MP4, WebM, MOV | — | MP4 recommended |
| Frame rate | 23 to 60 fps | — | Current TikTok restriction |
| Maximum API file size | 4 GB | — | Current TikTok restriction |
What this page owns
The API can accept a file that a specific creator account cannot publish at the requested duration. TikTok requires integrations to query creator information and respect the returned options.
That ownership boundary matters. Boomp uses one clear page for each search job instead of publishing near-duplicate pages that give different answers to the same question.
A dependable production method
- Use a 9:16 working canvas for full-screen viewing.
- Keep text clear of the caption and action controls.
- Use MP4 with H.264 when you need a dependable default.
- Query or check the account's current maximum duration.
- Review cover frame, caption, mentions, disclosures, and privacy before posting.
The last check matters most. A design file, successful export, scheduler acceptance, or API response does not prove that the customer-facing artifact is correct.
Size is only one acceptance test
A technically valid file can still fail the business. Check these questions with the final media and caption together:
- Is every name, date, price, claim, location, and link current?
- Does the crop preserve the subject and the useful words?
- Are captions, contrast, and text alternatives sufficient for the content?
- Does the business have permission to use the people, customer material, music, footage, and marks shown?
- Does the call to action match the destination and what happens next?
- Did a responsible person approve this exact version?
For the full release gate, use the social media content quality checklist.
Where Boomp fits
Boomp fits when the recurring problem is larger than one pixel count. The free first look starts with a public website and returns ten finished posts, with images, a carousel and a short video, before asking for an account or a card. They are the software's reading of the public site and do not prove that Boomp knows the owner's voice. Publishing and the recurring month belong to the paid plans. Finished media and posts belong to paid work, with the customer's approval settings controlling what represents the business.
See ten finished posts made from your website, free.
Related guides
- Vertical Video Size 2026: 1080 x 1920 and 9:16 Explained
- Social Media Safe Zones 2026: Keep Text and Logos Visible
- Social Media Video Length Limits 2026: Current Platform Guide
- Social Media Content Quality Checklist: 30 Checks Before Publishing
