How it works
Bluesky sizes
The tool knows 5 places on Bluesky where you upload a picture, and frames your photo for each one:
Avatar: 1,000 × 1,000 px
Banner: 1,500 × 500 px
Landscape post: 1,600 × 900 px
Square post: 1,080 × 1,080 px
Portrait post: 1,080 × 1,350 px
Framing and saving
The photo is scaled up just enough to cover the frame, and the part you see is what is saved. Drag the picture, nudge it with the arrow keys, zoom in with the slider, or rotate it a quarter turn. In the case of avatar, the output is 1,000 × 1,000 px.
Choose PNG for a lossless file or JPEG for a smaller one, then download one size, or every size for the platform in a single zip.




