Never uploaded
The PNG is compressed to WebP entirely inside your browser.
PNG to WebP Converter
Use our PNG to WebP converter to create smaller website images in your browser. Adjust quality, preserve transparency, and download privately with no signup.
- Never uploaded
- Free, unlimited
- No account needed
- Transparency survives compression
Choose your file
Choose or drop an image
PNG· up to 20.0 MB per file
Processed only in your browser — never uploaded
Free single-file processing in your browser; no cloud conversion quota is used.
Why use this PNG to WebP converter?
Use our PNG to WebP converter to create smaller website images in your browser. Adjust quality, preserve transparency, and download privately with no signup.
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.
How to use the PNG to WebP converter
- 01
Choose your PNG
Click to browse or drag a PNG in — it stays on your device throughout.
- 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.
- 03
Canvas encodes the WebP
Your browser compresses the image to WebP at your chosen quality while preserving transparency.
- 04
Download your WebP
The smaller file saves straight from your browser — ready for a faster-loading website or app.
Best source settings for the PNG to WebP converter
Choose settings that match the result you need.
↔ Swipe sideways to view every column.
| Need | Recommended setting | Best for |
|---|---|---|
| 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. | 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. |
- Choose your PNG
- Click to browse or drag a PNG in — it stays on your device throughout.
- 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.
PNG to WebP converter input and output
Review what the tool accepts, how it processes the file, and what it produces.
↔ Swipe sideways to view every column.
| Feature | PNG | WebP |
|---|---|---|
| Format | PNG | WebP |
| Processing | Runs in your browser | Runs in your browser |
| Result | Use our PNG to WebP converter to create smaller website images in your browser. Adjust quality, preserve transparency, and download privately with no signup. | Use our PNG to WebP converter to create smaller website images in your browser. Adjust quality, preserve transparency, and download privately with no signup. |
Where to use files from the PNG to WebP converter
The output is ready for common workflows supported by its format.
- 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.
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.
Privacy and file handling
Processing happens in your browser, so the selected file is not uploaded.
- Browser-local processing
- The conversion runs on this device after the page loads.
- No file upload
- The source image does not need to leave your browser.
- No model API
- This basic tool does not send the file to an AI model.
PNG to WebP converter 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?
- Anonymous visitors can choose one PNG up to 20 MB. Free accounts allow up to 50 MB and paid accounts up to 200 MB. The conversion itself still runs locally in your browser and does not use a cloud conversion credit.
- 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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Use our PNG to WebP converter to create smaller website images in your browser. Adjust quality, preserve transparency, and download privately with no signup.
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