Video Too Long for Instagram or X? Cut It to the Limit

The length caps on Instagram, X and friends

These numbers were accurate at the time of writing, but platforms change them often, so confirm in the app if a post still fails.

• Instagram Reels: up to 3 minutes, raised from 90 seconds in early 2025
• Instagram Stories: each card plays up to 60 seconds; longer uploads are split into separate cards
• X, free accounts: 2 minutes 20 seconds per post; paid Premium tiers allow much longer uploads
• Threads: up to 5 minutes per post
• TikTok: far more generous, with in-app recording up to 10 minutes and longer uploads for many accounts

File weight is a separate issue from duration. If the upload stalls on a short but heavy 4K clip, shrink it with the Video Compressor rather than cutting more.

Trim for the cap, then trim for the hook

Hitting the limit is the easy part; the better question is which 60 or 180 seconds deserve to survive. Viewers decide in the first two or three seconds, so start on motion, a face or a spoken payoff rather than a countdown, a logo or you adjusting the camera.

• Cut the dead air before the first word; it is usually 2 to 5 seconds on phone recordings
• Drop the wind-up and open with the result, then show how you got there
• End on the last strong line instead of the goodbye wave, which invites a replay
• Aim a few seconds under the cap, such as 2:55 for a Reel, so rounding never trips the check

Watch your chosen range once with the Preview button before exporting. It is faster than re-uploading a clip that starts mid-sentence.

Fast or Precise: two ways to cut the clip

The GrabCast cutter offers two modes. Fast copies the audio and picture streams without re-encoding, so it is almost instant and loses no quality at all. The catch is that it has to begin on a keyframe, and phones typically place one every one to two seconds, so the cut may start slightly before the point you chose.

Precise re-encodes the footage so the in and out points land on the exact frame you picked. It takes longer, especially on a laptop without much memory, but it is the right choice when a line of dialogue starts a split second after your mark. Fast keeps your original container, so a MOV from an iPhone stays a MOV, while Precise always delivers an H.264 MP4 that every social app accepts.

• Fast suits most social cuts: removing a slow intro, ending before the goodbye, or grabbing a highlight
• Precise suits dialogue, music beats and tutorials where the first syllable matters
• Screen recordings often have sparse keyframes, so Precise gives cleaner starts on them
• If a Fast cut starts early, nudge the Start slider forward or switch modes and export again

Splitting one recording into several parts

For a 7-minute talk that you want as a Story series, cut it several times from the same file: 0:00 to 0:59, then 0:59 to 1:58, and so on, keeping one second of overlap so no word is lost at the seam. Each export is a separate file you can post in order.

Know the limits before you start. Each export covers one continuous range, so removing a stumble from the middle takes two cuts you join elsewhere. The page does not reframe horizontal footage to vertical 9:16, add music or transitions, and on phones very large files can run out of browser memory; a computer handles long 4K recordings far better. The first use downloads a roughly 32 MB processing engine, which is then cached so later sessions start quickly.

For a long recording that you want as several short posts, see how to make short clips from a long video.

Step-by-step

Common mistakes to avoid

Pro tips

Frequently asked questions