compressvid.ioShrink iPhone and QuickTime MOV files to an exact size in MB. Output is a compatible MP4 — no watermark, nothing to install.
Quality mode targets CRF and does not guarantee an exact MB size. Switch to target size or bitrate for a hard limit.
Only use this for very old devices or playback issues (reduces compression ratio).
MOV is Apple’s QuickTime container. iPhones record it by default, often as HEVC (H.265) at high bitrates — a one-minute 4K clip can easily pass 200 MB. Many apps and chat tools still prefer MP4/H.264, so a MOV may fail to upload, show as a blank attachment, or arrive as a cloud link instead of a playable video. Compressing MOV to a smaller MP4 solves both problems at once: a file under the platform limit, in a format almost everything can play.
These caps apply to the file you attach — MOV or MP4. Compress to a little under the limit so container overhead never pushes you over.
| Destination | Upload limit | Compress to |
|---|---|---|
| Discord (free) | 20 MB | 19 MB |
| Discord Nitro Basic | 50 MB | 48 MB |
| Gmail attachment | 25 MB | 24 MB |
| Other email (Outlook, work mail) | Often 20–25 MB | 19 MB to be safe |
| WhatsApp / Telegram | Large files allowed, chats re-compress | Smaller = faster send |
| Forms, LMS & job portals | Usually 10–100 MB (set by the site) | 5% under the stated limit |
Limits checked October 2026. Discord raised its free upload limit from 10 MB to 20 MB in August 2026 — older “8 MB” guides are outdated. Limits checked October 2026. Full breakdown: Discord file size limit.
No QuickTime Pro, no HandBrake install — compress and convert in one pass in the browser.
Drop an iPhone recording, QuickTime export or any MOV into the compressor above. MKV, AVI, WebM and MP4 work too if you need a different source.
Type the size you need in MB — 19 MB for Discord, 24 MB for Gmail — or use a percentage preset like “50% smaller”. The tool derives a bitrate from the clip’s length so the result lands close to your target.
Output is a widely compatible MP4 (H.264 by default). Save it, attach it or upload it — no watermark, nothing burned into the frame.
File size ≈ bitrate × duration. Use this as a planning table before you compress.
| Video length | Target size | Rough total bitrate |
|---|---|---|
| 15 seconds | 19 MB | ~10 Mbps — sharp 1080p is easy |
| 30 seconds | 19 MB | ~5 Mbps — clean 1080p |
| 60 seconds | 24 MB (Gmail) | ~3.2 Mbps — good 1080p / 720p |
| 2 minutes | 19 MB | ~1.3 Mbps — 720p recommended |
| 5 minutes | 19 MB | ~0.5 Mbps — 480p or cut a highlight |
| 60 seconds | 50% smaller | Half the original — usually looks fine |
If the picture falls apart, lower resolution before starving the bitrate further. For long iPhone recordings, a shorter highlight almost always looks better than a five-minute clip forced under 20 MB.
Both MOV and MP4 can carry modern codecs, but the combination the world expects is MP4 + H.264 + AAC. That is what the compressor outputs by default, including when your source is HEVC MOV from an iPhone.
Discord embed, email previews, older Android phones, school portals — H.264 in an MP4 container is the safest bet. Choose H.265 in Advanced only when you control the playback side.
iPhone HEVC (H.265) keeps quality at lower bitrates, but some Windows tools and web players refuse it. Re-encoding to H.264 MP4 is the fix when a recipient says “it won’t open”.
AAC stereo at 64–128 kbps is plenty for phone and clip audio. Unusual tracks (PCM, ALAC) bloat the file and break embeds.
Answers for iPhone and QuickTime files that will not send.
Compress MOV to a smaller MP4 at the size you need — free to start, no watermark, nothing to install.