Resize and compress images in bulk. Includes presets for social media, blogs and email attachments. Everything runs locally in your browser.
Your files are never uploaded — everything runs in your browser
| Purpose | Recommended size | Notes |
|---|---|---|
| Blog post image | width 1000–1200px | ~2× display width for retina screens |
| Featured / OG image | 1200 × 630px | Card image when shared on social media |
| X (Twitter) post | 1200 × 675px (16:9) | Avoids cropping in the timeline |
| Instagram feed | 1080 × 1080px (square) | Portrait up to 1080×1350 |
| YouTube thumbnail | 1280 × 720px | Under 2MB |
| Email attachment | longest side 1200–1600px | Keeps several photos within a few MB |
This tool always preserves aspect ratio, so images are never distorted. When a purpose requires an exact ratio (like 1200×630), resize the width first, then fine-tune with the Image Cropper. A quality of about 85 gives a good balance of size and appearance.