Compress a Video for Slack: Screen Recordings vs Camera Clips
Slack limits every uploaded file to 1GB — and that cap is the same whether your workspace is on the Free plan or paying for Business+. What actually changes between plans is total workspace storage: Free workspaces share just 5GB total across everyone, while Pro and Business+ give each member 10GB or 20GB respectively. For a team that shares screen recordings daily, 1GB per file is rarely the problem — running out of shared storage on a Free workspace is.
Screen recordings and camera clips are not the same compression job
A screen recording of a demo or a bug repro is, visually, mostly a static frame with small changes — a cursor moving, a window opening, some text appearing. A webcam recording of a stand-up or a customer call has continuous motion in faces and backgrounds throughout. Encoders can represent the first kind with far less data per second than the second, which means the "right" quality setting for each is genuinely different, not just a matter of preference.
Step-by-step for screen recordings
- Open Shrynk and drop in the recording.
- Use a higher CRF (26-28, Shrynk's "Smaller file" range) — the low motion means this rarely introduces visible blockiness, even on text-heavy screen content.
- If there's no narration audio and just system sound, consider trimming dead air at the start/end before compressing; a shorter file always beats a smaller bitrate.
Step-by-step for camera/webcam clips
- Use a more moderate CRF (20-23, "Balanced" or "High quality") since motion and facial detail degrade faster under aggressive compression.
- If the file still needs to fit a specific budget (say, a small Free workspace nearing its 5GB cap), switch to Target file size mode instead of guessing a CRF value.
FAQ
Does Slack's paid plan raise the per-file size limit?
No — the 1GB per-file cap applies on Free, Pro, and Business+ alike. What paid plans change is total workspace storage (10GB or 20GB per member instead of 5GB shared) and file retention, not the size of any single upload.
Why does a screen recording compress so much smaller than a webcam clip at the same setting?
Screen recordings are mostly static — a cursor moving over a mostly unchanging UI — which the encoder can represent with far less data than continuous motion in camera footage. A higher CRF value that would look rough on a webcam clip is often indistinguishable on a screen recording.
Do files disappear permanently after 90 days on the Free plan?
No, not immediately — Free-plan files older than 90 days become hidden from search and history, not deleted. They reappear if the workspace upgrades to a paid plan. Data older than about a year on a Free workspace can eventually be removed.
Sharing recordings with the team constantly? The Shrynk desktop app batch-compresses a whole folder of screen recordings and camera clips in one pass, for a one-time $9.