Reduce large photos to 1MB or less with a high-detail WebP preset for presentations, large listings and generous upload limits, all processed locally.
JPEG, PNG, WebP and supported AVIF inputs · Multiple files · Nothing is uploaded
Use this workflow when an upload accepts files up to 1MB and preserving detail matters more than extreme compression. The larger target allows higher dimensions and quality than the smaller exact-size presets.
The page opens with a 1024KB limit and a distinct high-detail configuration.
The result may be far below 1MB when the image compresses efficiently, and output varies by format and browser encoder.
The 1MB preset preserves larger dimensions and starts at 88% quality, making it appropriate when detail matters but an original multi-megabyte file is unnecessary.
Kompixa reduces encoder quality first. If the output remains too large, it gradually reduces dimensions and retries. The original is never overwritten.
PNG does not expose the same quality control. Browser memory, unsupported formats and unusually large dimensions can also limit processing.
Use the result as a delivery copy. Keep the original file separately for future editing, printing or a different compression target.
This preset uses 1024KB as the target because browsers and local file tools commonly report binary kilobytes. A destination service may use decimal units, so leave a little margin when its rule is unclear.
No. Outputs are designed to be 1MB or less and can finish far below the ceiling.
No. Supported processing runs in the current browser and the source image is not sent to Kompixa.