Slack Image Resizer
Prepare a square Slack profile photo at the documented 512×512 minimum.
Sizes, to scale
All Slack Image Sizes
Choose the Slack format you need, then review its source notes, crop, and image quality.
Work and design image sizes
Prepare sourced image dimensions for collaboration, portfolio, publishing, and meeting platforms.
- Figma Image ResizerPrepare Figma Community thumbnails, plugin or widget icons, and profile avatars with presets taken from current Figma Help documentation.
- Notion Image ResizerPrepare a 280×280 Notion page icon or a wide page cover that meets Notion’s 1,500-pixel width guidance.
- Behance Image ResizerPrepare Behance project covers, profile banners, and portfolio images using Behance’s current display and upload guidance.
- Slack Image ResizerPrepare a square Slack profile photo at the documented 512×512 minimum.
- Microsoft Teams Image ResizerPrepare Microsoft Teams meeting backgrounds and required full-color or outline app icons with PNG output.
- Dribbble Image ResizerPrepare a Dribbble Shot on a clear 1600×1200, 4:3 working canvas without presenting that size as a platform requirement.
- LinkedIn Ad Image ResizerPrepare square, vertical, and carousel images using current Campaign Manager dimensions.
Turn Resized Slack Images Into a PDF
Put one image on each page, arrange the order, and create the PDF in your browser.
About Slack Image Sizes
Slack’s current profile-photo guidance defines a 512×512 minimum and 1024×1024 maximum. This page exports the smaller compliant square.
Use a centered, high-contrast crop that remains recognizable in compact message and sidebar avatars.
Slack Size Cheatsheet
Quick reference for all Slack image dimensions.
| Format | Dimensions |
|---|---|
| Slack Profile Picture | 512 × 512 |
Posting somewhere else? Use the free image resizer to resize images for any platform.
How to resize images for Slack?
- 1
Step 1: Upload your image
Select the image you want to resize for Slack. Our tool supports JPG, PNG, WebP, and HEIC formats.
- 2
Step 2: Choose your Slack format
Select the specific Slack preset you need, whether it is a background, icon, thumbnail, profile image, banner, post, or another supported placement.
- 3
Step 3: Download and share
Review the crop and image quality, then download the resized image and upload it to Slack.
What image size presets are available for Slack?
This page provides Slack Profile Picture (512x512). Open a preset to see whether its dimensions are a documented requirement, recommendation, minimum, or practical working canvas.
Is the Slack image resizer free?
You can open the Slack resizer and upload an image on the web. The editor will show any sign-in or usage limit that applies before processing.
Will resizing reduce my image quality?
Resizing can reduce detail, especially when a small source image is enlarged. Start with the highest-resolution image available and review the result before using it for Slack.
Can I resize multiple images at once?
This resizer processes one image at a time. Choose the Slack format you need, review the result, and download it before starting another image.
File tools
Convert the resized image
Need a different file format or transparent background? Choose a focused converter, then check the preview and encoded size before downloading.
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