Image Levels
Adjust black point, gamma (midtones), and white point — professional tone mapping.
How to Use
- Drop image.
- Drag black / gamma / white sliders.
- Download.
Formula
About the Image Levels
Image Levels is a quick, free tool for image, audio and file tasks. It works in your browser and keeps everything on your device. Adjust black point, gamma (midtones), and white point — professional tone mapping.
How it works
Enter what you have and read the result as it updates live. It all runs on your own device, so it is quick and private, with nothing to install.
Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.
Frequently Asked Questions
Gamma?
Midtone curve. 1.0 = linear, <1 darker, >1 brighter midtones.
How do I use the Image Levels?
Simply type your numbers and read the result, which refreshes the instant you change something. There is nothing to submit and nothing to wait for.
Does it cost anything or need an account?
No. The tool is completely free, there is no account to create, and it keeps working offline after the page first loads.
Is anything I type uploaded?
No. The tool works entirely on your device, so the values you enter never leave your browser.
Common Use Cases
Scan fix
Pull black point to kill haze.
Contrast
Auto-style punch.
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