§00 Email Video Compressor

Compress Video for Email — Under 25 MB, Free

Shrink clips to Gmail, Outlook and work-mail attachment limits. Exact target size in MB — no watermark, nothing to install.

Drag & drop a video here to get started
Guests: up to 250 MB · Free plan: 1 GB · Paid: up to 10 GB
MP4, MOV, MKV, AVI, WebM, WMV, M4V, 3GP, MPEG and more
Compression preset
Target size:MB
Fit to:

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).

Estimated cost: — credits
§01 Email Attachments

Why video attachments bounce

Email was built for documents and photos, not multi-hundred-megabyte phone clips. Every major provider hard-caps attachment size — Gmail at 25 MB, many work and Outlook systems at 20–25 MB — and when you go over, the message either fails, gets rewritten as a cloud link, or arrives as a file the recipient cannot open. Compressing the video to just under the cap keeps it a real attachment: playable, searchable, and independent of anyone’s storage quota.

§02 Email Limits

Attachment caps by mail provider

These caps apply to the whole message including attachments. Compress to a little under the limit so encoding overhead never pushes you over.

Mail providerAttachment limitCompress video to
Gmail (Google)25 MB24 MB
Outlook.com / Hotmail20 MB (was 10 MB historically)19 MB
Yahoo Mail25 MB24 MB
iCloud Mail20 MB19 MB
Work / Microsoft 365 / Google WorkspaceOften 20–25 MB (admin-set)Check IT, then leave headroom
Older corporate gatewaysSometimes 10 MB9 MB or use a link

Limits checked October 2026. When a provider “sends a link instead”, recipients on locked-down networks may still be blocked — a real compressed attachment is more reliable. Limits checked October 2026. Full breakdown: Discord file size limit.

§03 How It Works

How to compress a video for email

No HandBrake, no iMovie export queue — set the size your provider allows and download.

  1. STEP 1

    Upload the video

    Drop an iPhone MOV, Android MP4, WebM screen recording or any clip into the compressor above. Long files are fine — the tool derives bitrate from duration.

  2. STEP 2

    Pick an email preset (or type a size)

    Choose 24 MB for Gmail or 19 MB for Outlook/iCloud, or type the exact cap your IT department gave you. Percentage presets work when you only need “smaller”, not a hard limit.

  3. STEP 3

    Download and attach

    You get a compatible MP4 under the cap. Attach it as usual — no watermark, no account required to try.

§04 Bitrate Math

How long can an email video be?

File size ≈ bitrate × duration. Work backward from the attachment cap before you record.

Video lengthTarget sizeRough total bitrate
15 seconds24 MB (Gmail)~12 Mbps — 1080p or 4K is fine
30 seconds24 MB~6.4 Mbps — sharp 1080p
60 seconds24 MB~3.2 Mbps — good 1080p / 720p
2 minutes24 MB~1.6 Mbps — 720p recommended
5 minutes19 MB (Outlook)~0.5 Mbps — 480p or cut a highlight
60 seconds50% smallerHalf the original — usually looks fine

If quality falls apart, reduce resolution before starving the bitrate further. For five-minute recitals or meetings, a 60–90 second highlight almost always communicates better than a squeezed full take.

§05 Delivery Tips

Attachments vs links — and what to put in the body

A compressed MP4 attachment is the most portable option: it survives offline inboxes and does not depend on Drive or Dropbox permissions. Use a cloud link only when the file must stay full quality, or when policy forbids attachments entirely.

Name the file clearly

client-demo-60s-24mb.mp4 beats VID_2048.MOV. Recipients on mobile decide whether to download based on the filename alone.

Say what they should do

One line in the body — “60-second demo, 24 MB, plays in any browser” — reduces “can’t open this” replies more than another quality pass.

H.264 MP4 is the safe default

Email previews and older players expect MP4 + H.264 + AAC. If your source is HEVC MOV or VP9 WebM, converting while you compress avoids a second round-trip.

§06 FAQ

Email video compression FAQ

Answers for Gmail, Outlook and work mail that reject large clips.

How do I compress a video for email?

Upload the clip to the compressor on this page, choose 24 MB (Gmail) or 19 MB (Outlook/iCloud), and download the smaller MP4. Then attach it as you normally would.

What is Gmail’s video attachment limit?

Gmail allows up to 25 MB per message including attachments. Compress to about 24 MB so encoding and headers do not push the message over the cap. (Limit checked October 2026.)

Why does Gmail say my video is too big even after I zip it?

Zipping barely helps already-compressed video. Re-encode to a lower bitrate or smaller resolution with a real video compressor — that is the only reliable way under 25 MB.

Should I send a link instead of an attachment?

Use a link when the file must stay full quality or policy blocks attachments. A compressed attachment is more reliable for recipients on restricted networks and does not expire like some share links.

Will compressing a video for email lose quality?

Re-encoding trades some detail for size. At email targets — a 30–60 second clip to 19–24 MB — most viewers will not notice on a phone or laptop. Extreme squeezes on long footage will soften the image.

What size should a video be for Outlook or work email?

Many Microsoft 365 and corporate gateways allow 20–25 MB; some legacy systems still cap at 10 MB. When in doubt, compress to 19 MB or under 10 MB and confirm with IT.

Send the video, not the bounce notice

Compress to the size your mail provider allows — free to start, no watermark, nothing to install.

Compress a video for emailSee plans & credits