Slack profile picture size
Slack states at least 512 × 512 and no larger than 1024 × 1024 pixels. Crop your photo to that size below and see how it looks small. It all happens in your browser: your photo is never uploaded.
What Slack says
- Size: at least 512 × 512 and no larger than 1024 × 1024 pixels.
- A non-square image is letterboxed (developer documentation).
The cropper saves 1024 × 1024 pixels for Slack: the largest size Slack states. Read on 12 November 2026 on slack.com and docs.slack.dev.
Make it look good small
- Head and shoulders, your face filling about half the square, a little room above your hair.
- Your face a little above the middle: most apps cut from the centre.
- Start from the original photo, not a screenshot or a copy sent in a chat.
- Soft light on your face: a window in front of you does more than any filter.
Every size we checked: the full table.
This site is not connected to, endorsed by or sponsored by any of the platforms named here. Slack is a trademark of Slack Technologies, LLC. Facts read on each platform's own help pages on 12 November 2026.
Questions
Is this the official Slack size?
It is the size Slack states on its own help page, read on 12 November 2026. Platforms change their pages; the source link above shows what it says today.
Is my photo uploaded?
No. The cropper runs in your browser. The photo is opened, cropped and saved on your own device.