SynoxTools

How to crop an image online

Drag the file into the window above, select the area with your mouse, or pick a preset. Download the result. Everything happens in your browser — no upload to a server.

Ways to crop

  • Aspect ratios — 16:9, 4:3, 1:1, 9:16 and more
  • Freeform — crop any area with no constraints
  • Social presets — Instagram Post, Story, YouTube, TikTok, Pinterest and more
  • Live preview — real-time, dimensions in pixels

Supported formats

JPEG, PNG, WebP, GIF, BMP, SVG, ICO, TIFF, AVIF. HEIC (iPhone photos) is input only — upload .heic and crop. Output saves as PNG or JPEG.

Privacy

Everything stays on your device. No server, no tracking, no signup. Safe for any kind of image.

Before1344×768
1:1After

Frequently Asked Questions

No. Cropping happens in your browser, on your device.

Yes. 16:9 (YouTube), 1:1 (Instagram Post), 9:16 (Instagram Story), 4:3 (presentations), and more.

No. Cropping doesn't change the quality of the remaining area. The original resolution is preserved.

Not yet. Batch cropping isn't available right now — you can crop one image at a time here.

JPEG, PNG, WebP, GIF, BMP, SVG, ICO, TIFF, AVIF, HEIC (input only — iPhone photos). Cropped output saves as PNG or JPEG.