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Use the fields in the tool above and keep units and formats consistent.
Convert JPG and PNG images to WebP for faster pages, or turn WebP files back into JPG or PNG when an editor, app or upload form refuses to open them.
Did you save an image from a website and find it will not open in your editor? Or are you trying to make your own site load faster? Those are the two reasons people reach for a WebP converter. They point in opposite directions. The first needs WebP turned into JPG or PNG. The second needs your JPGs and PNGs turned into WebP.
WebP is an image format developed by Google. It supports lossy and lossless compression, transparency and animation within a single format.
| Feature | JPG | PNG | WebP |
|---|---|---|---|
| Compression | Lossy | Lossless | Lossy or lossless |
| Transparency | No | Yes | Yes |
| Animation | No | Not in standard PNG | Yes |
| Photo file size | Baseline | Much larger | Roughly 25-34% smaller than JPG in Google's tests |
| Modern browsers | Universal | Universal | Chrome, Edge, Firefox, Safari 14 and later |
| Older software | Universal | Universal | Patchy |
That size saving is what makes a WebP converter worth running on a website. Across a product page with twenty images, trimming a quarter off each one adds up quickly, especially on mobile data.
Lighter images help Largest Contentful Paint, one of Google's Core Web Vitals. Converting hero banners and product photos to WebP is often the quickest page speed win. Aim for quality 75 to 85 on photos. Use lossless mode for logos and interface graphics.
Still worried about very old browsers? Serve WebP with a JPG fallback using the picture element:
<picture><source srcset="hero.webp" type="image/webp"><img src="hero.jpg" alt="Store front"></picture>
WordPress has accepted WebP uploads since version 5.8. Many caching and image plugins can also generate WebP copies for you automatically.
Lossy WebP behaves like JPG and suits photographs. Lossless WebP behaves like PNG and keeps every pixel, which suits logos, icons and screenshots. Lossy mode can still carry transparency, so a cut-out product shot stays light. Test both on one sample image and compare sizes before converting a whole folder.
Some desktop editors, older Office versions, print shops and government upload portals still reject WebP. Convert to JPG for photos you need to share, print or attach. Convert to PNG if the WebP has a transparent background you want to keep, such as a logo.
An animated WebP holds many frames. Converting it to JPG or PNG usually keeps only the first one. If you need the motion, convert it to GIF or a short video instead. Use the ToolsMate WebP converter for still images and a GIF tool for animations.
Use the fields in the tool above and keep units and formats consistent.
Review the result shown in the output area.
Confirm that the result matches your situation before using it for a decision.
The image is decoded and exported using the WebP image format.This describes the core logic used by the tool. Check any assumptions that may affect your result.
Use accurate inputs and keep units consistent.
Review the assumptions before using the result for a decision.
Compare important results with an independent or official source.
Upload the WebP file, choose JPG as the output and set a quality level, around 85 for photos. Then download the result. If the WebP has a transparent background, choose PNG instead, because JPG fills transparent areas with a solid colour.
Many websites serve WebP because it loads faster than JPG or PNG. Your browser simply saves the format the site delivered. Converting the file to JPG or PNG makes it usable in older editors, documents and upload forms.
WebP does not rank better by itself, but smaller files help pages load faster. Faster loading supports Core Web Vitals, which Google uses as a page experience signal. Good alt text and relevant content still matter far more for rankings.
Yes, WebP supports an alpha channel in both lossy and lossless modes. That makes it a lighter alternative to PNG for logos and cut-out product images. Convert transparent WebP files to PNG, not JPG, if you need to keep the transparency.
Recent versions of Windows and macOS can usually preview WebP files, and every major browser opens them. Older photo editors and some Office versions may refuse them. Converting to JPG or PNG is the simplest workaround when software will not cooperate.
Quality 75 to 85 suits most photographs and usually gives a noticeably smaller file than the source JPG. Avoid very low settings on an already compressed JPG. Stacking two rounds of lossy compression makes artefacts more visible.
Usually, yes. Lossless WebP is often around a quarter smaller than an equivalent PNG, and lossy WebP can be far smaller still. Try lossless first for logos and icons. For photos saved as PNG, lossy WebP gives the biggest saving.
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