How to make a Bluesky profile photo
- Choose a JPG or PNG image.
- Position and zoom it within the circular guide.
- Choose the largest no-enlargement size, a medium size, or 400 × 400.
- Download and confirm the result is no more than 1 MB.
Crop a square Bluesky avatar, position it with a circular guide, and choose an output based on the resolution available inside your crop.
Your image stays on your device. Processing happens entirely in your browser and the image is never uploaded.
Bluesky’s official app.bsky.actor.profile schema accepts JPEG and PNG avatars and
caps the blob at 1,000,000 bytes. The schema does not state minimum, recommended, or maximum
pixel dimensions. This tool therefore uses 400 × 400 as a practical small option and caps
browser output at 4096 × 4096 without presenting either as an official Bluesky dimension.
Sources: Bluesky profile editing documentation and official profile schema.