One image in.
The right frame out.
Resize, crop, convert and compress a JPEG, PNG or WebP. The original never leaves your browser.
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No image data is sent to Idun. The export is created locally and does not contain the original file’s EXIF metadata.
Presets tied to current platform guidance.
Checked 21 August 2026
Instagram accepts photos up to 1080 pixels wide and currently supports ratios from 1.91:1 through 3:4. YouTube recommends 3840 × 2160 for custom thumbnails. Apple Podcasts prefers 3000 × 3000 cover art, while LinkedIn recommends 1200 × 627 for link preview images.
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