Free · No signup · No watermark

Compress video to 25 MB

25 MB is Gmail's attachment ceiling — hit 25.1 and it bounces you to a Drive link. Land just under, every time.

Drop your video here

or

MP4, MOV, WebM… — processed 100% on your device

Target size

🔒 Your video never leaves your device. No upload, no signup, no watermark.

Get exactly 25 MB in 3 steps

1

Drop your video in

Drag and drop any MP4, MOV or WebM file into the tool above. It never leaves your browser — no upload, no queue, no account.

2

Lock in 25 MB

The 25 MB target is pre-selected. VidSizer reads your clip's duration and computes the exact bitrate needed — no guessing with Low / Medium / High sliders.

3

Download under the limit

The output is measured and re-encoded until it's provably under 25 MB, with a 6% safety margin, then downloads straight to your device.

Why Gmail rejects your “25 MB” file

Gmail's 25 MB limit counts the encoded attachment, not the file on your disk — so a file that reads 25.0 MB in Finder can still tip over the line and get bounced to Drive. VidSizer targets ~6% under your target, so encoding overhead never pushes you over.

The result arrives as a real attachment that plays inline — no “view in Drive” detour for your recipient. Also handy for any other inbox with a 25 MB cap. See compress video for Gmail.

Need a different target? Compress to 20 MB · Compress to 50 MB · Compress for Gmail

FAQ

How do I compress a video to exactly 25 MB?

Select the 25 MB target above and hit Compress. VidSizer measures your clip's duration, computes the precise bitrate, and re-encodes once more until the output is provably under 25 MB.

Why does Gmail reject my 25 MB video?

The 25 MB cap counts the MIME-encoded attachment, which runs larger than the file on disk. Targeting just under — with a 6% safety margin — keeps you safely inside the real limit.

Is my video uploaded anywhere?

No. Everything runs in your browser. No upload, no account, no watermark.