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Fake Slack Message Generator

Write a Slack thread, add reactions and follow-ups, flip light or dark, and export it as a 4:5 post or a transparent PNG. Rendered in Slack's actual Lato font.

1 Messages
2 Look
3 Preview & download

Make a Slack screenshot without touching Slack

This draws a fake Slack thread on a canvas using Lato, the typeface Slack actually uses, so it reads like a real screenshot. Add as many messages as you want, group follow-ups under the same person the way Slack does, drop emoji reactions with counts, and flip between the light and dark themes.

When you're making content, switch the ratio to 4:5 and it exports a 1080x1350 image with the thread sitting on a background color you choose, which is the size LinkedIn and Instagram like. Leave it on "fit" for a tight transparent PNG you can drop into an edit. Scale it up any time for a sharper export.

How to make a fake Slack message

  1. Type your first message and pick a sender name and avatar color.
  2. Add more messages, or a follow-up from the same person so they stack like real Slack.
  3. Tap emoji to add reactions, and set light or dark theme.
  4. Choose fit or 4:5, scale it, and download the PNG.

Frequently asked questions

What font does Slack use?

Lato. Slack has used it in the interface for years, and this renders your messages in it.

Can I make a 4:5 image for LinkedIn or Instagram?

Yes. Switch the ratio to 4:5 and it exports a 1080x1350 post image with your card on a background.

Can I add reactions and follow-ups?

Yes. Add emoji reactions with counts, and follow-up messages that group under the same person.

Is anything uploaded?

No. It runs in your browser and nothing you type leaves your computer.

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