Step 1
Upload Your Image
Choose one JPG, PNG, or WebP image up to 10 MB. Your file remains on your device during editing.
Adjust Image Gamma and Midtones Online
Refine the midtone brightness of a photo with a gamma slider. This gives you a different tonal adjustment from changing the entire image with Brightness.
Drag and drop an image here
or click to browse
JPG, PNG, WEBP · up to 10 MB
How to Adjust Image Gamma
Fine-tune photo midtones in three steps:
Step 2
Adjust the Gamma Slider
Open Finetune and select Gamma. Move the slider gradually while watching how the middle tones change in the preview.
Step 3
Review and Save
Check faces, textures, and other midtone areas, then click 'Save' to download the edited image as PNG.
Refine Midtone Visibility
Adjust gamma when middle tones need attention but you want a different response from a uniform brightness change. It can help reveal midtone subjects or create a darker tonal mood.
Compare Gamma with Brightness
Gamma changes the tonal curve rather than shifting all pixels equally. Use the live preview to compare the result and avoid pushing colors or midtones beyond a natural range.
Focused Image Editing Controls
Open the control you need, preview the change, and save the result without navigating a complex desktop editor.
Crop, Resize, Rotate, and Adjust
Use focused tools for dimensions, orientation, tone, color, annotations, text, frames, and selective blur.
Preview Changes Before Saving
Review edits directly in the browser and refine the settings before downloading the finished image.
Fast Browser-Based Processing
Common editing operations run on your device, reducing the wait for a server upload and response.
No Cloud Upload Required
Your source image is processed locally in the browser and is not uploaded to an Imglarger server.
Free to Use Without an Account
Use these browser editing tools without creating an account or installing additional software.
More Image Editor Features
Frequently Asked Questions
Find clear answers about using this Imglarger online image tool.
Gamma changes how middle tone values are displayed, allowing you to brighten or darken them without applying the same shift to every tonal value.
Brightness changes overall lightness more uniformly. Gamma changes the tonal curve and therefore has a stronger conceptual focus on midtones.
Use it when the midtones look too dark or too light even though the brightest and darkest areas are relatively acceptable.
Yes. Make small slider movements and compare the preview. A subtle correction is usually easier to evaluate than an extreme value.
You can edit JPG, JPEG, PNG, and WebP images up to 10 MB. The saved result is downloaded as PNG.
Yes. The adjustment runs in your browser and the source image is not uploaded to an Imglarger server.