Social video specs 2026

X (Twitter) video size and specs 2026

On X, free accounts can post videos up to 2 minutes 20 seconds and 512 MB. Premium subscribers can upload up to 4 hours (16 GB) on the web and iPhone, 10 minutes on Android. Use MP4 or MOV, H.264, at 1280×720 or 720×1280.

By the Slice research teamUpdated How we did it

Get this page’s dataSocial video specs 2026
  • 1280×720 or 720×1280size
  • 2:20 free, 4 h Premiumlength
  • 3 of 10specs from an official help page

What aspect ratio is a video on X?

Between 1:3 and 3:1. 16:9, 9:16 and 1:1 recommended.

Official (API docs): X developer docs: media best practices.

What resolution should a video on X be?

1280×720 (landscape), 720×1280 (portrait), 720×720 (square) recommended. Premium: 1080p up to 2 hours, 720p from 2 to 4 hours.

The 1080p/720p rule for long videos is on X Help: Premium longer videos.

Official (API docs): X developer docs: media best practices.

Free toolEvery platform on one sheetThe free specs sheet has the size and length for every platform side by side, from the same sources.

How long can a video on X be?

Free: 140 seconds (2:20). Premium: up to 4 hours on x.com and iOS, 10 minutes on Android.

The API docs give different upload limits (20 minutes by default, 125 for Premium). X Help pages block automated reading, so these were read from X's own indexed pages.

Official: X Help: longer videos.

What is the file size limit for a video on X?

Free: 512 MB. Premium: 16 GB.

The API docs say 8 GB by default for posts.

Official: X Help: videos on X.

What frame rate should a video on X use?

60 fps or less; 30 or 60 recommended.

Official (API docs): X developer docs: media best practices.

Which file types and codecs does X (Twitter) accept?

MP4 or MOV; H.264 High Profile; AAC-LC audio; 4:2:0, progressive.

Official (API docs): X developer docs: media best practices.

How long can the caption be on X (Twitter)?

280 characters; 25,000 with Premium. A link counts as 23.

The 25,000 figure is on X Help: X Premium.

Official: X developer docs: counting characters.

What does X (Twitter) not publish for video post?

We found no official figure for a cover size or a safe zone. Where a guide quotes one, it is common practice or the ads spec, not a X (Twitter) rule for ordinary posts.

Questions

How long can a video be on X (Twitter)?

On X, free accounts can post videos up to 2 minutes 20 seconds and 512 MB. Premium subscribers can upload up to 4 hours (16 GB) on the web and iPhone, 10 minutes on Android. Use MP4 or MOV, H.264, at 1280×720 or 720×1280.

How long can a video on X be?

Free: 140 seconds (2:20). Premium: up to 4 hours on x.com and iOS, 10 minutes on Android.

What aspect ratio is a video on X?

Between 1:3 and 3:1. 16:9, 9:16 and 1:1 recommended.

Get the Slice Weekly

One free email every Friday: tools for creators and the best advice we found from people who make things.

Where do these numbers come from?

X (Twitter)'s own help, developer and ads pages, each opened on 2 October 2026. Every value says which kind of page it came from.

n = 10 specs, 7 with an official source link. Last updated 2 October 2026.

Get the data

Free · CSV and JSON · 2 files

This page’s own figures as a CSV, and the full files behind Social video specs 2026. One email unlocks every download on Slice’s data pages.

  • This page’s figures (CSV) Every table and figure on this page, with its source line.
  • Every spec (CSV) One row per format and spec, with its status and source.
  • Every spec (JSON) The same, structured by platform and format, with the measured safe zones in pixels.

Free to reuse under CC BY 4.0: credit “Slice (tryslicemedia.com)” and link to this page. Leave the box unticked and we send you nothing. Everything on this page stays free to read without an email.

Other platforms

More on specs