Resize to 1080px
Long edge 1080px — Instagram's sweet spot, sharp on every device.
Instagram compresses uploads to 1080px. Upload at that size for the sharpest feed — shrink your photos locally, batch a folder, no upload service.
Instagram re-encodes anything above 1080px, so a 4000px photo uploads soft. Upload at 1080px for the sharpest feed.
Instagram re-encodes to JPG/WebP; size at source is what matters.
Upload a 1080px JPG at 85 — Instagram re-encodes once, keeping it sharp.
Dimensions. Resize →
Tight cap. 100KB →
For photos. JPG to WebP →
Any format. Compress Image →
1080px on the long edge. Anything bigger gets re-encoded (and softened); Compressy resizes to 1080px before upload.
Yes. Uploading at 1080px instead of 4000px avoids Instagram's downscale blur — your feed stays crisp on phones and tablets.
Yes. Drop the folder — posts, stories and carousel images all compress together, backups to /backup.
No. All compression is local. No upload, no account.
For Instagram — sharp feed without the cloud.
Offline · No upload · Windows