Adjust Image Brightness & Contrast
Brighten dark photos, add contrast, boost saturation and warmth with simple sliders and a live preview. Free online photo editor — no upload, no sign up.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
How to use Adjust Image Brightness & Contrast
- 1Drop one or more images into the box above.
- 2Adjust the settings — the preview updates live.
- 3Click “Download” to save, or apply to all images as a ZIP.
Questions
Is Adjust Image Brightness & Contrast free?
Yes. Adjust Image Brightness & Contrast is 100% free with no limits, no watermark, no sign up and no email required.
Are my files uploaded to a server?
No. Your files are processed entirely inside your browser using JavaScript. They never leave your device, so it is private and works even on slow connections.
Does Adjust Image Brightness & Contrast work on my phone?
Yes. Adjust Image Brightness & Contrast works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.