Ultraconvert
Join
100% client-side — your images never leave your device

Crop & rotate images,
without the upload.

Drag to crop, lock an aspect ratio, rotate or flip — then export a PNG, JPG or WEBP, all in your browser.

How it works

  1. 1

    Drop an image

    Add a PNG, JPG, WEBP, GIF or BMP. Everything happens locally — nothing is uploaded.

  2. 2

    Crop, rotate, flip

    Drag the handles to frame your crop, lock an aspect ratio like 1:1 or 16:9, and rotate or mirror the image.

  3. 3

    Export

    Pick PNG, JPG or WEBP (with a quality slider) and download — the dimensions update live as you adjust.

Frequently asked questions

Is my image uploaded anywhere?+

No. The image is loaded into a canvas and cropped entirely in your browser. It never leaves your device.

Does cropping reduce quality?+

Cropping itself is lossless — it just keeps the pixels inside your selection. If you export as JPG or WEBP, the quality slider controls re-compression; choose PNG for a lossless result.

Can I crop to a specific aspect ratio?+

Yes. Pick 1:1, 4:3, 3:2 or 16:9 and the crop box locks to that ratio as you drag, or leave it on Free for any shape.

What do rotate and flip do to the file?+

Rotation (90° steps) and horizontal/vertical flips are baked into the exported image, so the result is permanently oriented the way you see it in the preview.

Is it free?+

Yes — free, no signup, no watermarks.