Convert PNG to WebP

About this tool

Create a static WebP from a supported PNG, with quality controls and transparency.

Supported input

PNG

Output format

WebP

Batch size

Up to 5 files; format and combined limits below still apply.

How it works

1. Add RGB/RGBA PNG files in Input. Review each thumbnail and its validation status.
2. Choose the WebP quality and inspect the processed details before downloading.
3. Create the selected files. Compare original and result, then download an individual file or ZIP. Changing settings marks older results out of date.

Supported files and limits

Up to 5 files, 10 MiB each and 25 MiB combined. Each image must fit within 8192 pixels per side and 20 million pixels; a batch is limited to 40 million input pixels. Output is limited to 20 MiB per file and 50 MiB combined. One isolated image job runs at a time, with a 30-second timeout and cancellation.

A practical example

Try a transparent product graphic as a WebP for an application that accepts it. Compare its edge against a dark and a light background at your chosen quality.

Troubleshooting this tool

A smaller file is not guaranteed. Lossy encoding can soften lettering; preserve the PNG original and inspect transparent edges in the actual download.

PNG input must be non-interlaced, 8-bit RGB or RGBA. Animated PNG, EXIF, ICC profiles and compressed/international text metadata are rejected before decoding.

Check the actual export

WebP export uses the browser’s lossy encoder. Transparent pixels are preserved; fine detail can change. Inspect downloaded dimensions, transparency and fine edges before replacing an original. Browser encoders differ; a quality setting is not a universal fidelity score, and file size may increase.

Files stay in your browser

No file bytes are uploaded. Ordinary work stays in memory. Choosing a “Continue” action saves that result in this browser for up to 30 minutes, so another compatible working tool can use the actual output. Saved workflows are limited to 50 MiB and 20 files; clear them in Output. Expired entries are removed on later tool visits. Clearing references is not a secure-erasure promise.

If a file fails

Check its actual format and the restrictions above. Renaming a file does not convert it. A failed file does not erase successful batch results. If processing times out, cancel and try fewer or smaller files. A current browser with worker canvas support is required.

Before you use the download

• Compare the actual output byte size with the source; a new encoding can be larger.
• Inspect fine edges, gradients and any transparency background in the downloaded WebP file.

Tools that accept this output

These links use this tool's default output format, subject to each next tool's supported variants and limits. If you change the export format, use Continue in Output to see compatible actions for the actual result. Opening a link below starts another tool without transferring a file.

• Convert WebP to JPG — Turn a supported static WebP into a JPG with a chosen transparency background.
• Convert WebP to PNG — Export a supported static WebP as a PNG with its decoded transparency.
• Resize PNG, JPG and WebP — Resize supported raster images into PNG files using one consistent workspace.

Need help with this operation? Contact Pro Edit Tools Support with a non-sensitive description of the problem.