Compress video for X / Twitter
When X rejects your video, standard users usually aren't hitting the size cap (512MB is hard to exceed) — they're over the 2-minute-20 length limit. Trim to under 140s with the trim tool, then compress to a sensible size and it posts cleanly. Premium users have far higher limits (8GB, longer) and compress mainly to upload faster. The tool above defaults to 100MB.
Quick answer
On X (Twitter), standard users can post a single video up to about 512MB and 2 minutes 20 seconds (140s); X Premium goes up to 8GB and longer. The wall standard users hit most is length, not size — over 140s and you have to trim first. ConvertMeow shrinks it locally and pairs with the trim tool to cut it short — no upload, no watermark.
Shrink it and pair with trimming
Target size
Derives a bitrate from target size ÷ duration and re-encodes; best for short clips.
X / Twitter video limits
Standard users: up to ~512MB per video and 2 minutes 20 seconds (140s). Size is hard to exceed; the real wall is the 140s length.
X Premium: substantially higher — up to ~8GB and longer (exact figures vary by platform and device). Even so, shrinking the video makes uploads faster and playback smoother.
- Standard: ≤512MB and ≤2 min 20 sec (trim first).
- Premium: ≤8GB and longer.
- To upload reliably and load fast: around 100MB works well.
What if it's over 140 seconds?
For standard users, exceeding the length limit means one thing — trim it. Use ConvertMeow's trim tool to cut to under 140s and keep the best segment. Then compress to a sensible size to satisfy X and upload quickly. To post a full long video you need X Premium, or split it into multiple posts.
Frequently asked questions
Standard users get about 512MB per video and a max of 2 min 20 sec (140s); X Premium goes up to ~8GB and longer. Standard users most often hit the length wall — over 140s you must trim first.
It's likely over the 2-minute-20 length limit (standard users). Trim to under 140s with the trim tool first; posting a full long video needs X Premium.
No. Compression and trimming run entirely locally in your browser with ffmpeg — never uploaded, no watermark, no cap.
Updated · ConvertMeow team