WebP is the practical middle ground PNG users have wanted for years: it keeps transparency, but compresses like a modern codec. For web images, converting PNG to WebP routinely cuts file size by half or more with no visible difference.
This page runs the local image converter preconfigured for WebP output. Transparency in your PNG carries straight through — no background fill needed.
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This is Convert Image Format preconfigured for this task — open the full tool for every option.
Select one or more images.
Choose the target format; consequences (like losing transparency in JPEG) are shown before converting.
Pick a background color if converting transparency to JPEG.
Convert and download individually or as a ZIP.
Every output is re-decoded to confirm it parses as the target format with the expected dimensions; failures are isolated per file.
Yes. WebP supports an alpha channel, so transparent PNG areas stay transparent — no background color is required.
The quality slider controls a lossy encode, which is what gives WebP its size advantage. At quality 90+ the difference from the PNG is imperceptible for most images.
Technical guidance for choosing settings and reviewing the result.
There is no quality percentage that makes every image exactly 1 MB or 100 KB. A reliable target-size workflow measures real encodes, preserves the best result under the limit, and tells you when resizing is necessary.
8 min read · Reviewed August 2026