Slimvid

Compress Video to a Target File Size

Hit an exact limit — 8, 10, 16, 20, 25, 100MB or your own number — without guessing bitrates.

Drop videos here, or click to browse

Up to 1GB each · MP4, MOV, WebM or MKV

Choose files

Processed locally in your browser. Nothing is uploaded.

Settings

Add a video and the settings for this tool appear here.

How it works

  1. 1Drop your video. We read its duration to calculate the bitrate needed for your target.
  2. 2Choose 8 / 10 / 16 / 20 / 25 / 100MB, tap Discord for the free 20MB cap, or type a custom size.
  3. 3Compress and download. The result lands at or slightly under your target.

Processed locally in your browser. Nothing is uploaded.

Three steps

How to compress a video to an exact size

No sign-up, no upload queue, no watermark. Everything happens on your device.

  1. 1

    Drop your file

    Drop your video. We read its duration to calculate the bitrate needed for your target.

  2. 2

    Choose settings

    Choose 8 / 10 / 16 / 20 / 25 / 100MB, tap Discord for the free 20MB cap, or type a custom size.

  3. 3

    Download

    Compress and download. The result lands at or slightly under your target.

Same job, other limits

Related size and platform pages

Compress Video for DiscordHit the 20MB free-upload cap without guessing a bitrate. Hardware encoding, nothing uploaded.For DiscordCompress Video for EmailLand under the 25MB attachment cap so the clip goes through as a file, not a cloud link.For emailCompress Video for WhatsAppMake a smaller H.264 MP4 so WhatsApp has less to recompress when you send it.For WhatsAppCompress Video for WeChatShrink a clip before WeChat recompresses it. The 16MB target is a practical preset, not an official cap.For WeChatCompress Video for XiaohongshuTurn a heavy export into a 100MB file that is easier to post from a phone.For XiaohongshuCompress Video for DouyinMake a 50MB file that uploads on a phone without waiting on a 4K master.For Douyin

Keep going

Related tools

FAQ

Compress to Size FAQ

How do you hit the exact size?
Target size divided by duration gives a total bitrate budget. We reserve a small share for audio and container overhead, encode the video at the remainder, and cap the encoder so the result stays under your number.
What is the Discord upload limit?
Discord’s File Attachments FAQ says accounts without Nitro can upload 20MB as of August 2026. Nitro Basic is 50MB and Nitro is up to 1GB. Discord says it is still experimenting, so a few accounts may be allowed more. Use the Discord page for the 20MB preset.
What size works for email?
Personal Gmail and Outlook.com both publish a 25MB attachment limit. Google Workspace and some company servers use a limit an admin chose, which can be lower. The 25MB preset matches the published consumer caps.
Can any video be compressed to 10MB?
Short clips compress fine. A very long video squeezed into 10MB will look soft because the bitrate per second gets tiny. If quality matters, trim the clip first.
Is the file uploaded anywhere?
No. Everything runs in your browser. The tool works even if you go offline after the page loads.

Desktop · Coming soon

Desktop · Coming soon

The desktop app is in development. Join the waitlist for launch updates.

Get early accessCompare web vs desktop
  • No file size limit — 4K, hour-long recordings, anything
  • Batch queues: drop a folder, apply one preset
  • Hardware-accelerated encoding (H.264 / H.265)
  • Works fully offline, same privacy guarantee