MOV → Twitter / X
Compress MOV for Twitter / X
Compressing MOV for Twitter / X comes down to three constraints: Twitter / X's 512 MB cap, its 1920:1200 resolution ceiling, and the need to output MP4 H.264 for reliable inline playback. MOV source files are typically 4K (iPhone default) at around 300 MB per minute — right at Twitter / X's 500 MB target. We calculate a per-clip bitrate budget from your duration, subtract 128 kbps for audio, and allocate the remainder to H.264 video at the highest quality that fits. iPhone MOV from iPhone 12+ uses HEVC, which we transcode to H.264 during compression. Twitter / X plays MOV most of the time, but edge cases (older clients, stricter servers) can fall back to 'unsupported file' — MP4 output avoids that entirely.
Where do you want to share your video?
How to compress MOV for Twitter / X
- 1Drag your .mov file onto the upload zone above (or browse to it).
- 2Twitter / X is already selected — we'll target 500 MB to stay safely under the 512 MB cap.
- 3Optionally trim to a highlight clip or switch to H.265 for 30-50% smaller files at the same quality.
- 4Download the compressed MP4 and share it on Twitter / X. Source file auto-deletes from our servers after 1 hour.
What to know about MOV → Twitter / X
- iPhone MOV from iPhone 12+ uses HEVC, which we transcode to H.264 during compression.
- Resolution is kept at up to 1920p when the bitrate budget allows.
- Trim to the highlight before you compress — every 10 seconds you cut gives remaining frames more bitrate to work with.
- Twitter / X's 500 MB target leaves a 5% safety margin below its 512 MB hard cap, so platform-side rejection is never an issue.
The compression math
A 1-minute MOV at 4K (iPhone default) = ~300 MB. Twitter / X's 500 MB target minus 128 kbps audio = ~69777 kbps video budget. H.264 at that budget kept at up to 1920p when the bitrate budget allows produces a file at the target size that plays inline on Twitter / X.
About MOV files
MOV is Apple's QuickTime video format, the default recording format on every iPhone, iPad, and Mac. MOV files are high quality but often 2 to 10 times larger than an equivalent MP4, because Apple devices record at high bitrates to preserve detail. A 1-minute iPhone video in MOV can easily be 200MB or more. CompressYourVideo.com converts your MOV to a compressed MP4 (H.264) that plays on every platform and device, not just Apple products. The conversion happens automatically during compression, so you upload a MOV and download a universally compatible MP4. This is especially useful for sharing iPhone recordings on WhatsApp, Discord, or via email where MOV files are often too large or incompatible.
About Twitter / X
Compress videos for Twitter/X. Twitter's free tier allows up to 512MB, but videos must be under 2 minutes 20 seconds. X Premium users get 16GB and longer duration.
Related compression tools
Or compress MOV for a different platform