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PNG to WebP Converter

Convert PNG images to WebP online for free. Shrink file size for faster websites. No signup needed.

Drop files here or click to upload

PNG · up to 20.0 MB per file

Files are private and deleted after conversion

PNG to WebP Converter illustration — convert and edit images online

How to use PNG to WebP Converter

  1. 01

    Choose your PNG

    Click to browse or drag a PNG in — it stays on your device throughout.

  2. 02

    Set the WebP quality

    Pick a quality level — 80–90 usually shrinks the file dramatically with no visible loss — and the alpha channel is kept at any setting.

  3. 03

    Canvas encodes the WebP

    Your browser compresses the image to WebP at your chosen quality while preserving transparency.

  4. 04

    Download your WebP

    The smaller file saves straight from your browser — ready for a faster-loading website or app.

Why choose our PNG to WebP Converter

Never uploaded

The PNG is compressed to WebP entirely inside your browser.

Free, unlimited

No usage limit on single-file conversions, since there is no server cost.

No account needed

Drop a file and download the result — nothing to sign up for.

Transparency survives compression

WebP keeps the alpha channel even in lossy mode, so PNGs with transparency convert cleanly.

Dramatically smaller files, instantly

WebP's efficient compression plus zero upload time means smaller files with no wait.

Settings guide

Quality
WebP output here is lossy, so quality controls the size/fidelity trade-off: 80–90 usually shrinks a PNG dramatically with no visible difference, and transparency (alpha) is kept at any quality. For pixel-perfect art, use the highest value and compare the result closely.

About the formats

PNG

PNG is a lossless raster image format created in the mid-1990s as a patent-free replacement for GIF. It is the standard choice for screenshots, logos, UI graphics, and any image that needs transparency.

PNG preserves every pixel exactly and supports a full 8-bit alpha channel, so text and sharp edges stay crisp. The downside is size: photographs saved as PNG are far larger than the same image as JPG or WebP. Support is universal in browsers and editors, making it a safe default for graphics — just avoid it for large photo collections.

WebP

WebP is a modern image format developed by Google that supports both lossy and lossless compression, along with transparency and animation. At comparable visual quality it usually produces noticeably smaller files than JPG or PNG.

Every current browser supports WebP, which makes it an excellent default for web delivery. Outside the browser the picture is mixed: older desktop software, some email clients, and legacy systems may fail to open it. If a recipient cannot view a WebP file, convert it to JPG for photos or to PNG when transparency must be preserved.

Troubleshooting

Fine details look slightly soft in the WebP
This conversion uses lossy WebP encoding, which smooths very fine texture at lower settings. Raise the quality toward 95–100 — the file will still usually be far smaller than the PNG while looking sharp.
The WebP won't open in my image editor
All modern browsers display WebP, but some older desktop programs and OS photo viewers still can't open it. Keep your original PNG for editing, and use the WebP where it shines — websites and apps that value small file sizes.
Did my transparent background survive the conversion?
Yes — WebP supports an alpha channel even in lossy mode, so transparency is preserved at every quality setting. And since the conversion runs locally in your browser, the file is never uploaded and single-file use is free and unlimited.

FAQ

Why convert PNG to WebP?
WebP files are typically 25–35% smaller than PNG at the same quality, making web pages load faster while preserving transparency.
Does conversion happen in the browser?
Yes. Your PNG files are converted entirely within your browser. Nothing is uploaded, so your images stay private.
Is there a file size limit?
Free accounts can upload files up to 50 MB. Paid users can upload up to 200 MB.
What does the quality setting affect?
WebP output here is lossy, so quality controls the size/fidelity trade-off. Around 80–90 usually shrinks a PNG dramatically with no visible difference, and transparency is kept at any quality.
Will transparency be preserved?
Yes. WebP supports an alpha channel even in lossy mode, so transparency survives at every quality setting.
Why won't the WebP open in some apps?
All modern browsers display WebP, but some older desktop programs and OS photo viewers still can't open it. Keep your original PNG for editing and use WebP where it's supported.
Is there a limit on how many files I can convert?
No. The conversion runs locally in your browser, so single-file use is free and unlimited.

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