Image Compressor

Compress image for Squarespace Gallery

Squarespace 7.1 renders gallery images up to 2500 px. Compression avoids the CDN's own quality-loss re-encoding.

Your images stay on your device. Nothing is uploaded.

Squarespace 7.1 galleries render images up to 2500 px, but the platform's CDN re-encodes uploads with settings you can't control. Landing at 2000 px WebP produces a cleaner final render than uploading a 4000 px camera source.

For older Squarespace 7.0 sites, use JPEG output instead — WebP support was added in 7.1.

Frequently asked questions

What size should an image be for Squarespace gallery block?
The preset on this page reflects the recommended dimensions for Squarespace gallery block. Uploading at these dimensions avoids the auto-crop or auto-downscale that the platform would otherwise apply.
Does the platform re-encode after upload?
Yes — most platforms re-encode uploaded images to their internal format and bitrate. Starting from a clean, correctly sized image means only one round of lossy re-encoding rather than two.
What format should I use for Squarespace gallery block?
The preset uses the format recommended for Squarespace gallery block. JPEG is the safest universal choice; some workflows benefit from WebP or PNG for specific reasons (transparency, screenshots, etc.).
Is anything uploaded?
No. The compression and resize run in your browser. The image only leaves your device when you upload it to Squarespace gallery block yourself.
Can I batch process multiple images for Squarespace gallery block?
Yes — use the bulk compressor to process a folder of images with the same settings. Every image gets the correct dimensions and quality for Squarespace gallery block.

Prepare a Squarespace — gallery block image.

Drop your image — the tool applies the correct dimensions and quality for the platform.

Start compressing