Fit the byte ceiling. Keep the best measured quality.

Resample locally, run six real encoder probes, and see the pixel and size tradeoff before downloading the result. No upload leaves this browser.

LOCAL IMAGE DARKROOMSTATIC SAMPLE · OBSERVED CODEC BYTES
SOURCE1920 × 1080
OPTIMIZEDWAITING
Source bytes—Decoded sample encoded as PNG
Output bytes—WebP result
Selected quality—0 quality probes
Byte targetREADYRun the optimizer

Measured quality search

NO PROBES YET

Interpretation. Pixel count and encoder quality both affect bytes. The search keeps the highest tested quality under your target; if even the lowest probe is too large, the tool says so. Metadata and animation are not preserved, and browser codec output varies.

Target met with measured evidence.

1280 × 720OUTPUT DIMENSIONS
—OBSERVED OUTPUT
—HIGHEST TESTED QUALITY UNDER TARGET

Six actual browser encodes were compared. The selected Blob is the same artifact offered by the download button.

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