PNG to WebP Converter

How to use PNG to WebP Converter

1. Open PNG to WebP Converter — no sign-up or software download is required.
2. Drag and drop your file(s) into the tool, or click to browse and select them from your device.
3. Choose any options you need, such as order, quality, page range or output format.
4. Click the action button and let the tool process everything locally in your browser.
5. Download the finished file. Your originals are never changed or uploaded.

Why use PNG to WebP Converter?

• 100% free with no limits, no sign-up and no watermarks.
• Private by design — your files are processed in your browser and never uploaded to a server.
• Fast and lightweight, with instant results even on a phone or a slow connection.
• Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
• Part of a full image tools suite, so related png to webp tasks are one click away.

What people use PNG to WebP Converter for

• Cutting the weight of PNG graphics and screenshots on a website.
• Keeping transparency while reducing file size substantially.
• Converting UI assets for a performance-sensitive page.

PNG to WebP Converter: limits and things worth knowing

• WebP supports alpha transparency, so unlike JPG this conversion preserves transparent backgrounds — that is what makes it the right target for logos and icons.
• WebP offers both lossless and lossy modes. Lossless WebP typically beats PNG by around 25%; lossy WebP with alpha can be far smaller again, at some quality cost.
• For simple flat graphics with few colours, a well-optimised PNG can still win. Compare the output size rather than assuming.

Supported formats

Reads: PNG. Writes: WebP.

Is it private and secure?

Your privacy is built in. PNG to WebP Converter does all processing on your own device using client-side code, so your files are never transmitted, stored or seen by anyone — including us.

Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.

You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.

Learn more

Image Optimization: Compress, Resize and Convert — Faster pages and smaller files start with good images. Learn how to compress, resize and convert images without wrecking quality.