Free video compressor
Compress video to 1GB for Slack
Slack caps every plan at 1 GB per file. Drop a Zoom export or screen recording, hit the preset, download an MP4 that posts in the thread.
Free video compressor — no file size cap, no watermark. Your browser’s memory is the only limit.
Fit to
One click. Bitrate is calculated for you.
How to compress a video for Slack (1GB)
Slack’s help docs cap every plan — Free, Pro, Business+, Enterprise — at 1 GB per file. A 4K camera dump or a long Zoom export still misses that. Workspaces also dislike 2 GB originals chewing guest Wi-Fi.
This free Slack video compressor targets 1 GB in your browser. Two-pass encoding, no watermark, and the recording never leaves your machine — useful for internal demos you do not want on a random encoder farm.
Workspace admins sometimes set a lower cap than Slack’s default. If a 900 MB file still fails, ask IT or use Custom. For a two-hour Zoom at 4K, 1 GB will still need a resolution drop. For a five-minute product demo, 1 GB is easy 1080p.
How to compress a video for free
Three steps. The encoder runs on your device, so private clips never sit on a server.
1
Drop the video
MP4, MOV, WebM, AVI, or MKV. The file is read in this tab — it is never uploaded.
2
Pick a size cap
Discord 20MB, WhatsApp 16MB, email 20–25MB, X 512MB, TikTok, Instagram, or a custom MB. Bitrate is calculated, not guessed.
3
Download the MP4
Two-pass H.264 in the browser. No watermark, no account, no daily limit.
Need the long version? How to compress a video for Discord, WhatsApp, and X.
Guides
Plain-language articles on size caps, quality, and why the file never needs to leave this device.
- Discord’s video size limit, explainedIf Discord refuses a clip, it is almost always the file size, not the format. This guide covers the real caps, why a phone recording blows p…8 min
- WhatsApp says the video is too large. Here’s why.WhatsApp’s in-chat video limit is 16 MB — the tightest cap most people hit every week. This is not a bug in your phone. It is a product choi…7 min
- How to compress a video without wrecking itEvery smaller file throws information away. “Lossless” 4K at 8 MB is a myth. What you can do is spend every leftover bit on the parts of the…9 min
- Your iPhone video is too large to send. That’s normal.Photos on an iPhone is a camera, not a messenger. It keeps more detail than WhatsApp, Gmail, or Discord will accept. You do not need a deskt…7 min
- The email bounced because the video was too bigSchools, law offices, and HR portals still want a real attachment. “Just put it on Drive” is not always allowed. Gmail’s cap is 25 MB. Many …6 min
- Your video never has to leave this deviceMost “online compressors” mean “upload it to our servers, we encode it, you download a watermarked file.” Shrink Clip means the opposite: th…8 min
Compress video by platform
Each page pre-selects the real upload cap. Same on-device compressor — no upload, no watermark.
- Compress video to 20MB for Discord
- Compress video to 16MB for WhatsApp
- Compress video to 25MB for email
- Compress video to 512MB for X (Twitter)
- Compress video for Instagram Reels
- Compress video to 72MB for TikTok
- Compress video to 1GB for Slack
- Compress video to 2GB for Telegram
- Compress video to 1GB for Snapchat
Compress video to 1GB for Slack FAQ
- What is Slack’s file upload limit?
- 1 GB per file on every Slack plan. The Slack (1GB) preset matches that. Use Custom if your workspace admin set a lower cap.