NullKit

Images · Free browser tool

Private Image Crop, Rotate and Flip Tool

Crop, rotate, and flip a JPG, PNG, or WebP locally. Draw the crop area with touch or mouse, use common aspect ratios, and export a new copy.

Runs on this device No file upload Free to use

Private workspace

Make precise composition changes with touch, pen, or mouse while the source image remains on your device.

Local processing

Ready.

Choose a file to begin

Make precise composition changes with touch, pen, or mouse while the source image remains on your device.

What this tool does

A focused job, with a visible boundary.

Make precise composition changes with touch, pen, or mouse while the source image remains on your device.

01

Touch and mouse crop selection

02

Free, square, portrait, and landscape ratios

03

Rotate, flip, preview, and local export

Know the limits

Local does not mean unlimited.

Browser processing protects the file from an upload workflow, but the browser, device, output format, and selected settings still matter.

  • Very small crop areas produce low-resolution output.
  • Re-encoding can alter metadata, color behavior, and compression.
  • The original file remains unchanged; edits apply only to the downloaded copy.

Four local steps

How to use image cropper.

  1. 01

    Choose a supported image.

  2. 02

    Pick an aspect ratio and drag over the area to keep.

  3. 03

    Rotate or flip the image and review the selection.

  4. 04

    Export and inspect the cropped copy before using it.

Clear answers

Image cropper questions.

Can I crop with my finger?

Yes. The selection surface uses pointer input and works with touch, pen, or mouse in supported browsers.

Does cropping change my original image?

No. The source file is read locally and remains unchanged. The tool creates a separate edited copy.

Which output format should I choose?

Use JPG for most photos, PNG when transparency or lossless output matters, and WebP for a compact modern image.