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Controlled server processing

Free Online Image Brightness Adjuster

Add or subtract brightness from each pixel.

Inputs are sent to this server. Uploads are processed temporarily and not retained. Network diagnostics may query public resolvers or the destination website.

Result



How to use Image Brightness Adjuster
Add or subtract brightness from each pixel. The server processes bounded inputs. Only public HTTPS endpoints are contacted; internal addresses and unsafe redirects are blocked. External answers can change between requests.
  1. Set Image (JPEG, PNG, WebP or AVIF; maximum 8 MiB).
  2. Set Brightness (−255 to 255).
  3. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Add or subtract brightness from each pixel. The example below demonstrates Image (JPEG, PNG, WebP or AVIF; maximum 8 MiB); Brightness (−255 to 255).
Example input:
{
  "image": "Upload a supported image",
  "brightness": 20
}
Result: Actual processed output or live service answers; values depend on the input and request time.
Features & result limitations
The server processes bounded inputs. Only public HTTPS endpoints are contacted; internal addresses and unsafe redirects are blocked. External answers can change between requests.
Frequently asked questions
What inputs does Image Brightness Adjuster accept?
Image (JPEG, PNG, WebP or AVIF; maximum 8 MiB); Brightness (−255 to 255)
How should I interpret the Image Brightness Adjuster result?
The server processes bounded inputs. Only public HTTPS endpoints are contacted; internal addresses and unsafe redirects are blocked. External answers can change between requests.
Where does Image Brightness Adjuster process my data?
Inputs are processed on this server. Uploads use temporary files removed at request end. Public diagnostics contact the named resolvers or website. Private text is not stored in usage counters.