Free tools

Threads video checker

Drop a video to check its length, size, shape, frame rate and file setup against Threads' video specs before you post it, or before a scheduling tool tries to.

  • Free, no sign-up
  • Your videos stay on your device
  • Rules checked November 10, 2026

Drop your videos

One file or a batch. MP4 and MOV are read directly, including phone rotation; other formats through your browser. Nothing is uploaded.

Threads video specs in 2026

Length
Up to 5 minutes
File size
1 GB maximum
Shape
9:16 recommendedAccepted from 0.01:1 to 10:1
Width
1,920 px maximum
Video
H.264 or HEVC, 23–60 fpsProgressive, 4:2:0, up to 100 Mbps
File
MP4 or MOVIndex (moov) at the front, no edit lists; AAC audio, 48 kHz max

Sources: Meta for Developers: Threads API, posts (media specifications) · Meta Newsroom: Introducing Threads (videos up to 5 minutes), read on November 10, 2026.

Five minutes, 1 GB

Meta launched Threads with videos of up to 5 minutes, and its Threads API gives the same limit: 300 seconds and 1 GB. It takes almost any shape, but recommends 9:16 so nothing is cropped and there's no blank space around the video.

The file setup scheduling tools need

Tools that post to Threads through Meta's API have to meet its specs exactly: MP4 or MOV with the index (moov) at the front, which editors call Fast Start or “optimize for web”, no edit lists, H.264 or HEVC, progressive, 4:2:0, 23 to 60 fps, no more than 1,920 pixels wide, and AAC audio at 48 kHz or less. The checker reads each of these from the file. For the same clip on Instagram, the Instagram Reels checker applies Reels' rules.

Embed this checker

Teachers, bloggers and course creators can put this threads video checker on their own page for free. Paste the code below into your page's HTML. It loads from markstudios.com, so it stays current when we update the numbers.

Questions, answered.

Anything else? Message Mark and you'll get a written reply within one business day.

How long can a video on Threads be?

Up to 5 minutes. Meta said so when Threads launched, and its Threads API specs give the same 300 seconds.

What size should a Threads video be?

Meta recommends 9:16 vertical so nothing is cropped and there’s no blank space, no more than 1,920 pixels wide, and a file of 1 GB or less.

What format does Threads need?

MP4 or MOV with H.264 or HEVC video (progressive, 4:2:0, 23 to 60 fps, up to 100 Mbps) and AAC audio, mono or stereo, at 48 kHz or less. The file’s index (moov) should be at the front, which most editors call Fast Start or “optimize for web”.

Why won’t my video post to Threads from a scheduling tool?

Tools that post through Meta’s Threads API must meet the specs above exactly: a video over 5 minutes, over 1 GB, wider than 1,920 pixels or exported without Fast Start is turned away. The checker shows which rule a file misses.

Is my video uploaded anywhere?

No. The checker reads the file in your browser and nothing leaves your device.

Rather have it edited for you?

Send the footage, and the edit comes back cut and sized for Pinterest, Facebook and the rest, and you work directly with Mark.

Get instant quote See short-form editing
  • Founder-led US company
  • NDAs by default
  • Stripe & PayPal payments
  • Top Rated on Fiverr