All Slack image sizes
3 sizes with exact pixel dimensions, and a free resizer for each one.
| Size | Pixels | Ratio | Resize |
|---|---|---|---|
| Workspace Icon | 512 × 512 | 1:1 | Resize Slack Workspace Icon |
| Profile Photo | 512 × 512 | 1:1 | Resize Slack Profile Photo |
| Custom Emoji | 128 × 128 | 1:1 | Resize Slack Custom Emoji |
Slack resizers
About Slack images
Slack workspace branding is subtle but important — workspace icons, profile photos, and custom emoji all contribute to organizational identity and culture.
Since Slack is primarily a work tool, images should feel professional and clean. The platform uses rounded square display for workspace icons and circular display for profiles.