PNG to WEBP Converter
PNG has been the standard choice for images that need a transparent background or perfectly sharp edges, logos, icons, screenshots, illustrations, ever since it replaced GIF in the 1990s. Converting more than one file at a time? Use the bulk images to WebP tool to run a whole folder in one go.
Last updated: September 2026
It is lossless, storing every pixel exactly, which keeps quality high but makes files noticeably heavy: a typical PNG can be several times larger than it needs to be for how it is actually used, especially on a website where every extra kilobyte slows the page down. WebP, a format Google built for the web in 2010, solves that without giving anything up: it keeps PNG's transparent background and pixel-accurate colour, but compresses the file to roughly 60 to 80 percent smaller. Frameworks like Apple's ImageIO, which macOS and iOS use to open image files, can read both formats, so this is not some obscure trick: WebP is genuinely mainstream now. Every current browser displays WebP without trouble, and unlike PNG it can even hold a short animation. What does not change is what the image looks like: converting keeps the same transparency and effectively the same colour accuracy, it simply repackages the pixels more efficiently. WebP is the right choice for images published on your own site; for a file you are emailing, printing, or handing to older software, PNG or JPG still travel more safely.
Every converter here is free, full size, no account. Photos convert in your browser and never leave it, except camera RAW files and SVG tracing. Those, like video, audio and e-books, need our server, and we delete them right after.
Everything happens inside this browser tab: the files never leave your device. Need another target format or a quality slider? Open the full converter.
Convert PNG to WEBP โHow to convert PNG to WEBP
- Drop one PNG or a whole folder's worth on the box above.
- Each file becomes a WEBP in your browser, at 92% quality, with any transparent background kept.
- Save them one by one, or press Save all. Every file keeps its name, with .webp on the end.
That's the whole job: each PNG to WEBP convert takes a second or two, and you can convert PNG to WEBP free as often as you like. No account, no watermark, no daily cap, no converter free download to install; unlike a typical free converter, every free convert stays on your device. It's a batch converter as much as a single-file one, so batch convert a whole folder in one go. Nothing is uploaded either, so a batch of client work or unreleased product images never leaves your machine. The WEBP typically comes out 60 to 80 percent smaller: the PNG to WEBP compression is lossy at 92%, which is where the smaller file size comes from. Need a different quality? The full converter has a slider.
Getting a PNG to website weight is exactly what this is for: WEBP is the format built for serving images on the web, at a fraction of the PNG's weight.
Why WEBP
For years the choice was awkward: PNG if you needed a transparent background, JPG if you needed a small file, and no way to have both. WEBP removes that trade-off. It supports full alpha transparency like PNG, and compresses roughly as well as JPG: often better.
In practice, converting a PNG to WEBP typically cuts the file to a quarter or a fifth of its original size with no visible difference. On a page carrying a dozen images, that is the single largest speed improvement most sites can make, and page speed feeds directly into search ranking and how many visitors stay.
CloudConvert PNG to WEBP and Cloudinary PNG to WEBP do the same conversion, but on their servers. This online PNG to WEBP converter does it in your browser, and it doubles as a PNG to WEBP compressor: the format switch and the size drop happen in the same step. One note: WEBP at these settings is lossy, like JPG, so it isn't a pixel-perfect copy; at normal viewing size you won't see the difference.
With a quality slider: the full converter
- Drop your PNG files onto the converter, a whole folder at a time is fine.
- Set the output to WEBP.
- Choose a quality. 90% is near-indistinguishable from the original; 80% is a good setting for images on a website.
- Download individually or use Download all.
Does transparency survive?
Yes. That is WEBP's main advantage over JPG. A logo, an icon or a cut-out product photo keeps its transparent background through the conversion (the WEBP transparent background stays see-through, just like a plain PNG), which is why WEBP works as a drop-in replacement for PNG on the web where JPG cannot.
The dimensions stay exactly as they were, though: this page doesn't resize, so do that separately if you need a different size.
Where WEBP works, and where it does not
- Every current web browser: Chrome, Firefox, Safari, Edge and their mobile versions all display WEBP. This has been true for years now.
- Websites and web apps: ideal. This is the format's home ground.
- Desktop software: mixed. Some editors open it happily, others do not recognise it at all.
- Upload forms, print services, e-mail: often rejected. Send JPG when you are handing an image to someone else.
- Anything going to print: use PNG or a TIFF from your original.
The rule of thumb: WEBP for images you serve, JPG for images you send.
A note on quality settings
PNG is lossless, so a PNG-to-WEBP conversion is your first round of lossy compression on that image: which means the quality slider genuinely matters. For photographs, 80-85% is usually the sweet spot on a website. For flat graphics, logos and anything with sharp text, push it to 95-100%: the file stays small anyway because there is little detail to store, and you avoid soft edges around the lettering.
Always convert from your original PNG, and keep that PNG free of lossy passes, rather than from an image that has already been through a lossy format. Each lossy round is permanent, and stacking them shows.
The real difference between PNG and WEBP comes down to compression method, not visual quality, and in practice the WEBP usually lands 60 to 80 percent smaller for the same look.
Which PNGs shrink dramatically, and which barely move
The savings from WEBP are real but very uneven, and it depends entirely on what's in the image:
- Photographs stored as PNG: enormous savings. This is the case where people see files drop by 70-90%. A PNG has to store every subtly different pixel exactly; WEBP is allowed to approximate, and on photographic content the approximation is invisible. If someone handed you photos as PNG, this conversion is close to free money.
- Screenshots of text, UI and code: modest savings, and a risk. PNG is already efficient at flat colour and crisp edges, so there's less to win, and lossy compression is at its worst exactly where you have thin dark text on a light background. Push the quality down and letter edges get a faint mush around them. For anything with small text, keep the slider at 90 or above, compare the two side by side at 100% zoom, and be willing to keep the PNG.
- Logos and flat graphics with a handful of colours: often a wash. A PNG with few colours is already tiny. Convert if it fits your pipeline, not because you expect a saving.
- Gradients, film grain and noise: good savings, but check banding in large smooth gradients: that's the first artefact to appear.
The habit that matters: convert from the PNG every time, not from a WEBP you made earlier. Lossy re-encoding compounds, and a file that's been through two lossy passes at 80% looks worse than one pass at 65%.
Before you put WEBP live on a site
Browser support is no longer the question: every current browser reads WEBP. The remaining friction is in everything that isn't a browser, and it's worth checking before you replace your images wholesale:
- Email is the weak spot. Mail is read in dozens of clients, some of them years behind, and a WEBP that fails to render is a blank box in your newsletter. If an image matters in an email, send JPG.
- Upload forms and older plugins still reject the extension. Plenty of CMS installs, marketplaces, job portals and print services accept only JPG and PNG by filename. Keep a JPG copy of anything you might need to upload elsewhere.
- Social and messaging previews. Most scrapers handle WEBP now, but an og:image is the last place you want to find an exception, a JPG there costs you nothing.
- Office documents and older desktop software. Inserting a WEBP into a document or opening it in an older image editor is where you'll meet the friction on someone else's machine, not yours.
On your own site, a WEBP PNG fallback pair in a picture tag covers every browser, and a page with no PNG fallback works in all current ones anyway. None of that is an argument against WEBP for your own pages, where it's straightforwardly the better format. It's an argument for keeping a PNG WEBP pair of every image: the original PNG stays your master copy, and you re-export from it whenever something downstream wants a different format.
Converting the other way: WEBP to PNG
The box on this page only makes WEBP. To change WEBP to PNG, use the full converter: drop the WEBP and pick PNG as the output. It converts WEBP to PNG free as well: a free WEBP to PNG converter with no watermark and no account, and it handles a whole batch the same way. Ezgif WEBP to PNG and Cloudinary WEBP to PNG do the same thing on their servers. A WEBP to PNG batch works the same way in the full converter.
Saved an image from a website and got a .webp? That's why so many people download WEBP files by accident. Convert from WEBP to PNG in the full converter, or to JPG with the WEBP to JPG page.
Related: Best free image converters, AVIF to PNG Converter.
Turning a screenshot or photo into a shareable document instead of just changing its format? ScanReviver's PNG to PDF converts straight from PNG, up to 30 pages in one file.
Questions
Does WEBP keep a transparent background?
Yes. WEBP supports full alpha transparency just as PNG does, which is what makes it a drop-in replacement for PNG on the web, unlike JPG, which fills transparency with a solid colour.
How much smaller is a WEBP than a PNG?
Typically 60 to 80 percent smaller with no visible difference. The exact saving depends on the image: photographs compress far better than flat graphics.
Do all browsers support WEBP, or will old ones break?
Every current browser does: Chrome, Firefox, Safari, Edge and their mobile versions. Support outside browsers is patchier, so use JPG when you are handing a file to someone rather than serving it on a page.
Should I use WEBP for images I e-mail or upload?
Usually not. Many upload forms, print services and desktop applications still reject WEBP. The rule of thumb is WEBP for images you serve on your own site, JPG for images you send to other people.
Can I convert back, WEBP to PNG?
Not with the box on this page, which only makes WEBP. To convert WEBP to PNG, use the full converter on the home page: drop the WEBP and pick PNG (or JPG; there is also a WEBP to JPG page). It is free as well and runs in your browser. Detail lost in the WEBP encode does not come back, though, so keep your originals.
How do I convert PNG to WEBP online?
Drop your PNG onto this page and the WEBP is ready in a second; select several to convert them in one go. The conversion happens in your browser, so nothing is uploaded and nothing is installed. Each file is saved at 92% quality; for a different quality, set the slider in the full converter first. In Spanish and Portuguese the pair is written PNG a WEBP, and this page converts it like any other PNG.
Is it free, and is there a limit?
Yes: no sign-up, no watermark and no cap on how many files, since the conversion runs entirely in your browser. That is also what to look for in any free PNG to WEBP converter: no upload, transparency kept, and the quality under your control.
How to download WEBP as PNG from a website?
Browsers save such images as WEBP. To download WEBP as PNG, save the image, then convert a WEBP to PNG in the full converter: it keeps any transparency.
The other conversions
- HEIC and HEIF to JPG, PNG or WEBP, for iPhone photos
- PNG to JPG, the size-saving one
- WEBP to JPG, for files downloaded from websites
- JPG to PNG, when a tool insists on PNG
- PNG to WEBP, for images on your own site
By Sam Ridder, I build and run ConvertNinja on my own hardware, on my own. Who I am.