Document Straightener

Straighten document photos in your browser

Upload an image, detect document edges, correct perspective, and export your result directly in the browser.

100% local processing No registration No server uploads Optimized for mobile and desktop
1Upload
2Adjust
3Download

Choose your image

Or drag a JPG, PNG or WEBP here

Straighten document photos online without upload

Use this tool on iStyle.ch to fix skewed document photos directly in your browser.

Everything stays local on your device: edge detection, corner adjustment, perspective correction, and export.

How it works

Upload image, adjust corners, apply correction, and download the result.

  1. Upload a document photo or scanned image.
  2. Check corners and adjust manually if needed.
  3. Export as JPG, PNG, or PDF.

Why this tool?

Fast, privacy-friendly, and no installation required.

Typical use cases

Invoices, forms, contracts, notes, and whiteboard photos.

Frequently asked questions

Is my image uploaded?

No. Processing runs locally in your browser.

Can I move corners manually?

Yes. You can adjust all four corners with mouse or touch.

Does it work on mobile?

Yes. The interface is optimized for desktop and mobile.

Which export formats are available?

You can export JPG, PNG, or PDF.

What images work best?

Clear document photos with visible edges and good contrast.