Compress a video to 25 MB
Upload forms and email attachments stop at around 25 MB. Set the size, and Asset Compressor works out the bitrate and resolution that give the best picture under the limit.
- No upload
- No watermark
- No file size limit
- Hardware accelerated
Drop videos here to compress them
MP4, MOV, WebM, MKV, AVI and more · no size limit or watermark
Processed on your device. Your videos are never uploaded.
Advanced: codec, frame rate, audio, trim
How to compress a video to 25 MB
- 1
Add your video
Drop an MP4, MOV, WebM or MKV file – a phone recording, a screen capture or an exported edit.
- 2
Check the target
24 MB is preset so the file safely fits a 25 MB upload limit. To attach the video to an email, change it to 18 MB.
- 3
Trim or drop the audio (optional)
Under Advanced, cut the start and end or remove the sound track. Both leave more of the budget for the picture.
- 4
Compress and download
The MP4 is ready when the progress bar finishes. Its final size is shown before you download it.
Why email needs less than 25 MB
Gmail allows 25 MB of attachments per email, but attachments are encoded as text when they are sent, which adds about a third to their size. In practice a video of about 18 MB is the largest that attaches directly instead of being turned into a Google Drive link. Outlook and many company mail servers allow 20 MB or less, so 15 MB is the safe choice when you don’t know the recipient’s provider.
For upload forms, learning platforms and support portals that state a 25 MB limit, the preset 24 MB leaves just enough headroom.
How much video fits into 25 MB?
24 MB is about 200 megabits. Spread over a one-minute clip that is roughly 3.3 Mbps – good 1080p. A five-minute video gets about 650 kbps, which looks clean at 480p but soft at 1080p.
You don’t have to do this math: in size mode Asset Compressor reserves a small share for the audio, chooses a resolution that suits the remaining bitrate and re-encodes up to twice if the first result overshoots.
Hardware-accelerated and private
Most phones and computers have a built-in video encoder. Asset Compressor uses it through your browser, so compressing a few minutes of video usually takes about as long as the video plays – or less – and the file never leaves your device.
Frequently asked questions
What size should a video be to send it by Gmail?
About 18 MB or less. Gmail’s 25 MB limit includes the encoding overhead added to attachments, so larger files are sent as a Drive link instead.
My video is 20 minutes long. Can it still fit?
Yes, but at a low resolution, because 25 MB leaves only about 160 kbps for the picture. Trim it, or share the original through a cloud link if quality matters.
Does compressing add a watermark?
No. There is no watermark, no sign-up and no limit on how many videos you compress.
Which format is the result?
MP4 with H.264 video and AAC audio, which plays on every phone, computer and email client.
Related tools
Video to 50 MB
50 MB is enough for several minutes of sharp HD video. Drop in a long recording or a 4K clip and get an MP4 that fits – without uploading it to anyone’s server.
Video for Discord
Discord blocks free uploads above its size limit. Set a target and every clip is squeezed to fit at the best quality possible – right in your browser.
Compress video
Shrink MP4, MOV, WebM and MKV files on your own device with hardware-accelerated encoding. Choose a quality level or an exact target size – no upload, no watermark.
Resize video
Scale videos down to 1080p, 720p or 480p, or fit them to an exact frame like 9:16 for Reels and TikTok – with letterboxing or a clean crop.
Related guides
How to compress a video without losing (visible) quality
Bitrate, resolution, frame rate and codecs explained in plain language, with settings that work for phones, email, Discord and websites.
How to send a video without losing quality
Why messaging apps make your videos blurry, and the best way to share a clip by chat, email, Discord or a link – depending on its size.
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