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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.

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 25MB, 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.

Compress video by platform

Each page pre-selects the real upload cap. Same on-device compressor — no upload, no watermark.

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.