Are my edits permanent?

No — your original file is never modified. Download the edited image to save your changes.

What formats can I export edited images?

JPEG (best for photos), PNG (lossless, supports transparency), or WebP (smallest file size with excellent quality).

Does the editor work on mobile?

Yes — all editor tools use the Canvas API which works in mobile browsers. Touch events are supported for cropping and drawing tools.

Is there a file size limit?

Up to 20MB per image. Larger files may be slow on low-powered devices since all processing is done locally.

Editor

Adjust Contrast

Adjust image contrast online free. Increase or decrease the tonal range of photos to make them pop or look flatter. Real-time preview. Browser-based....

✓ Free⚡ Instant🔒 Private

No. All editing happens in your browser using the Canvas API. Your files never leave your device.

Upload a fresh copy of your image and reapply the edits. All processing is non-destructive on your original file.

Drop image here

or click to browse · Paste with Ctrl+V

JPGPNGWebPHEICGIFBMP

Max 20 MB · Processed locally · Zero uploads

Settings

Contrast

Highlights

Shadows

Output Format

Processing…

Change

smaller

Extracted Text

PreviewTap images to zoom

ORIGINAL

Original

RESULT

Result appears here

How to Use

Upload image.

Adjust Contrast slider.

Use Highlights/Shadows for fine control.

Download.

Quick Answer

Adjust Contrast: free, browser-based tool — Adjust image contrast online free. Increase or decrease the tonal range of photos to make them pop or look flatter. Real-time preview. Browser-based.... No upload required, works instantly on any device.

Frequently Asked Questions

Subtle contrast boosts of 10–30 usually look natural. High contrast (50+) creates a dramatic, stylised look.