What does this tool do?
Image Quality Adjuster: image file, output format, output quality → adjusted image, preview, output size. Process locally in your browser. Inputs: Image file, Output format, Output quality. Outputs: Adjusted image, Preview, Output size.
How to use it?
Provide the listed input and choose Adjust. Review the result, then copy or download where available. Clear removes inputs and results.
Browser-local processing. No uploads, content logging, persistence or remote resource loading. Generated markup is inert text; files are treated as untrusted data.
Local native decoding/encoding; re-encoding removes metadata and flattens animation. PNG, JPEG and WebP bytes are verified. AVIF decoding depends on this browser; no AVIF encoding is exposed.
Output uses a lossy codec, including when input is PNG. No PNG quality semantics are claimed.