skwish

private

browser-based

Compress images for Slack

Slack limits free workspaces to 5GB of storage, and large images eat that quota fast. Skwish pre-compresses your screenshots and graphics locally so your workspace stays lean.

Search match

This page is tuned for compress image for slack so visitors land in the right workflow immediately.

Fast output

See original size, compressed size, and percentage saved before you move on.

Batch ready

Compress multiple files and pull the results down as a ZIP.

Get to the compressor fast

Exact-intent SEO page first. Clear next step. Pretty later.

People usually search for a specific task, not a brand story. So this page keeps the promise simple: compress images without sending them to a third-party server.

Built for people searching “compress image for slack”, not a generic landing page.

No uploads, no accounts, no waiting on a server.

See the savings before you download anything.

Batch export stays available when the job is bigger.

Best for this search

Pre-compress screenshots and mockups before sharing in Slack channels so they upload instantly and do not eat workspace storage.

Shrink design assets and wireframes before sending them in Slack DMs to keep file sizes under the 1GB per-file limit.

Batch-compress a folder of screenshots for a project handoff and share the ZIP archive in a Slack channel.

Compress images now

Opens the upload box on the free browser compressor.

Drop images in the browser

Keep the whole workflow local. Nothing leaves your device unless you download it.

Set the output you need

Adjust compression until the file size and quality fit the job instead of guessing.

Download a clean result

Save one file or a ZIP bundle with skwish-prefixed names so the output is easy to find.

Sharing compressed images on Slack

Use these before you upload or share the page.

Slack free workspaces have 5GB total storage — pre-compressing screenshots to under 200KB each can save gigabytes over time.

Resize screenshots to 1920px on the longest edge first; Slack displays images inline at ~800px, so bigger originals just waste quota.

Use ZIP export for multiple images and share the archive — Slack supports file attachments up to 1GB on all plans.

Ready to compress images?

Open the free browser upload box, keep files local, and download the optimized result.

Compress images now

Related tools

Other compression pages built for specific size limits and formats.