WebP is now a practical image format for most websites, but compatibility is not exactly the same everywhere. A modern browser may display a WebP image without any problem, while an older application, image editor, email client or document tool may not open it. The result depends on the browser version, operating system, application and the way the file is being used.
This guide explains WebP browser and device compatibility in plain language. It covers websites, desktop and mobile devices, image editors, office applications, social platforms and common file-sharing situations. It also explains what to do when a WebP file does not open and how to choose between WebP, JPEG and PNG.
What WebP is and why compatibility matters
WebP is an image format developed by Google for delivering smaller images while preserving useful visual quality. It can store lossy images, lossless images, transparency and animation. Lossy compression reduces some image information to make the file smaller. Lossless compression keeps the image data intact, although the resulting file may be larger than a lossy version.
WebP is stored in a container based on the RIFF file structure. In everyday use, you normally only need to know that a WebP file usually ends in .webp and is identified for websites with the image/webp media type. The format can contain features that are not always supported equally by every application.
Compatibility has two separate parts. First, a program may be able to display a WebP image. Second, it may be able to edit, export, upload, print or convert that image. An app that can show a WebP file may still lack tools for saving changes as WebP or preserving animation and metadata.
WebP support in modern web browsers
Current versions of the major browsers generally support WebP on desktop and mobile. This includes Chrome, Edge, Firefox, Opera and Safari on relatively recent operating systems. Chromium-based browsers use the same general browser engine, so WebP display is usually consistent across many of them.
Safari added WebP support in modern releases, including Safari 14 and later on supported Apple operating systems. Older Safari versions may not display WebP images. Internet Explorer does not provide native WebP support, so websites that still need to serve that browser should provide another image format.
Browser support can also depend on the WebP feature being used. A standard still image is more widely compatible than an animated WebP or a file using less common encoding options. A browser may display a basic WebP image but handle animation, transparency, color profiles or metadata differently.
For most visitors using an up-to-date browser, WebP is a safe choice for ordinary website images. Website owners should still consider older devices, embedded webviews and special browser environments rather than assuming that every browser behaves identically.
How websites provide a fallback
A fallback is an alternative file shown when the preferred format is not supported. The HTML picture element can offer WebP first and JPEG or PNG as another option. A content delivery system or image service may also choose a format based on the browser’s request headers.
A simple fallback strategy often uses WebP for modern browsers and JPEG or PNG for older software. PNG is usually the better fallback for images that need transparency or very sharp interface details. JPEG is often suitable for photographs without transparency. The fallback should be tested rather than added only by assumption.
Sites should also make sure that their server sends the correct media type and that caching systems do not confuse one browser’s response with another browser’s response. These are implementation details for site owners, but they can affect whether a compatible image loads correctly.
Compatibility on phones and tablets
WebP is widely used on Android phones and tablets, especially in web browsers and apps that use web technology. Current Android browsers normally display WebP images without special steps. Older Android versions and older applications may have more limited support, particularly for animated or specially encoded files.
On iPhone and iPad, WebP support is generally available in modern versions of iOS and iPadOS through current Safari and many apps. Older Apple devices that cannot run a recent operating system may have more restrictions. An image that works in Safari may still fail in an older third-party app because that app uses its own image library.
Mobile applications may download WebP files in the background and convert them before showing them. This can make compatibility appear better than it really is. The app may support WebP internally even if the operating system’s file browser or another app cannot open the same file directly.
When sharing an image with someone who uses an older phone, JPEG is often the safest choice for a photograph. PNG is usually more reliable for transparent graphics, screenshots and interface images. WebP is a good choice when both the sender and receiver use current software or when the image is intended for a website.
WebP on Windows, macOS and Linux
Desktop operating systems can support WebP at different levels. A modern browser may open the file even when the default file viewer does not. This is why dragging a WebP file into a browser is a useful quick test, but it does not prove that every installed application supports the format.
On Windows, support varies between the operating system version, installed codecs and the application used to open the image. Current browsers normally display WebP. File Explorer thumbnails, the Photos app, Paint, Microsoft Office and other programs may depend on the Windows version or application release. If a file does not open in one program, try a current browser or a dedicated image viewer before assuming the file is damaged.
On macOS, current Safari and many updated image applications support WebP. Preview, Photos, image editors and design tools may differ by macOS version and by the application’s own update history. A WebP file that opens in Safari may need conversion before it can be used in an older version of Preview or another older utility.
Linux support depends heavily on the desktop environment, installed libraries and chosen applications. Current browsers usually handle WebP, while image managers and editors can vary by distribution and package version. Updating the application or installing support for the WebP image library may solve the problem, but conversion is often simpler for a one-time task.
WebP support in image editors and design applications
Many current image editors can import WebP, export WebP or do both. The exact feature set is important. Import support means the program can open the file. Export support means it can save an image as WebP. Some programs support only one of these actions, or support still WebP but not animation.
Professional editing software may preserve layers only in its own project format. When you open a flat WebP image, it usually does not contain the editable layers from the original project. Saving the result as WebP can also remove application-specific information that is not part of the final image.
Animated WebP requires special attention. Some editors open only the first frame, some import all frames, and others treat the file as an ordinary still image. If animation matters, confirm that the program can preview, edit and export animated WebP before relying on it.
Color management can vary as well. A color profile is information that helps applications interpret colors consistently across screens and printers. WebP can store color-related information, but applications may read, preserve or ignore it differently. For normal web graphics this may not be noticeable, while professional print work requires careful testing.
WebP in office software, email and document workflows
Office suites and document systems have uneven WebP support. A recent version may insert a WebP image successfully, while an older version may require JPEG or PNG. Even when insertion works, exporting the document to another format or opening it on a different computer can produce a different result.
Email is another area where compatibility is inconsistent. Webmail services, desktop email programs and the recipient’s device may all handle image formats differently. Images inserted into an email may be processed by the service, while WebP files sent as attachments are handled by the recipient’s file viewer. For important attachments, JPEG or PNG is usually more predictable.
PDF tools also vary. Some can place or convert WebP images, while others expect JPEG, PNG, TIFF or another established format. If a WebP file will be used in a PDF, presentation, print job or archive that must open on many systems, converting it to a suitable standard format can avoid problems.
WebP compatibility on social media and online services
Online services often accept more formats than they advertise because they convert uploaded images on their servers. A platform may accept WebP during upload and then create JPEG or PNG versions for display. Another service may reject the file, strip animation or alter transparency.
Image upload rules can change without notice and may differ between a website, mobile app and API. The safest approach is to check the current upload requirements for the service and keep an original copy before uploading. If a platform rejects WebP, convert the image rather than renaming the extension. Renaming photo.webp to photo.jpg does not change the actual format and can make the file harder to process.
Content management systems may also handle WebP differently. Some accept WebP directly, some generate it automatically from JPEG or PNG, and some require a plugin or image optimization service. After uploading, test the published page on more than one browser and check that the image still has the expected transparency, sharpness and dimensions.
WebP compared with JPEG and PNG
No image format is the best choice for every situation. WebP is often useful for websites because it supports photographs, graphics and transparency in one format. JPEG remains a highly compatible choice for photographs. PNG remains common for lossless graphics, screenshots and images with transparency.
| Use case | Often suitable | Compatibility note |
|---|---|---|
| Website photographs | WebP or JPEG | WebP can reduce file size, but a fallback may help older browsers. |
| Transparent logos and graphics | WebP or PNG | Check whether the target app supports WebP transparency. |
| Simple sharing with unknown users | JPEG or PNG | These formats are commonly recognized by older software. |
| Animated images | Animated WebP or GIF | Verify animation support in the destination app and platform. |
| Professional editing projects | The editor’s project format | Keep the original project file instead of using WebP as the editable master. |
| Printing and document exchange | JPEG, PNG or TIFF | Follow the printer or document application’s requirements. |
When converting from JPEG to WebP, the result may be recompressed. Repeatedly converting between lossy formats can reduce quality, especially around text, fine lines and sharp edges. Keep the original photo or project file and create WebP as a delivery copy.
How to test whether a WebP file will work
Start by checking the file in a current browser. If it displays there, the file is probably valid, although the target application may still lack support. Next, try the exact program or platform where the image will be used. Opening a file on your own computer does not guarantee that a recipient, website or older device will handle it.
Check the file extension and size, but do not rely on the extension alone. A damaged download, incomplete transfer or incorrectly generated file can also cause an error. If several WebP files fail in the same application while they work in a browser, the issue is probably application support rather than file damage.
Test the features that matter. For a transparent logo, check the background around the image. For an animation, confirm that all frames play. For a photograph, compare detail and color. For a website, test both a modern browser and any older browser or embedded webview that your audience still uses.
What to do when WebP does not open
The simplest solution is to convert the file to JPEG or PNG. TopWebP’s Convert images to WebP tool is useful when you need to create a WebP copy for a website, but the reverse conversion may be better when a receiving application cannot read WebP. Choose the output format based on the image and the destination rather than changing the extension manually.
Use JPEG for ordinary photographs when broad compatibility and a smaller file are important. Use PNG when transparency, crisp text or lossless output matters. If the original WebP is animated, confirm whether the conversion tool and destination format preserve animation. Converting an animated file to a still format may keep only one frame or produce a different kind of output.
If the file is important, keep the original and make a converted copy. This gives you another option if the first conversion changes transparency, metadata, animation or image quality. For repeated work, identify the oldest application or device that must open the files and choose a format that it supports reliably.
Practical recommendations for websites and users
- Use WebP for current websites when its quality and size meet your needs.
- Provide JPEG or PNG fallbacks if your audience includes older browsers, embedded webviews or unknown software.
- Keep original photos and editable project files separately from WebP delivery copies.
- Test transparency, animation and color before publishing important images.
- Do not rename a WebP file to another extension. Convert it properly.
- For general file sharing, choose JPEG or PNG when you cannot control the recipient’s software.
- Check the application’s version, not just the operating system, when compatibility is uncertain.
WebP is no longer limited to a small group of browsers. For most modern web use, it is a dependable format with useful compression and feature support. The remaining compatibility issues usually appear at the edges, such as old browsers, older desktop applications, email workflows, document tools and services with strict upload rules.
Frequently asked questions
Does every browser support WebP?
No. Current versions of the main browsers generally support WebP, but older browsers such as Internet Explorer do not provide native support. Support can also vary for animation and other less common WebP features. Websites that need broad coverage should provide a JPEG or PNG fallback.
Does Safari support WebP?
Modern Safari versions support WebP, including Safari 14 and later on supported Apple operating systems. Older Safari versions may not. The operating system and device age can limit which Safari version is available.
Can I open a WebP file on Windows?
Usually, you can open it in a current browser. Support in File Explorer, Photos, Paint and other Windows applications depends on the Windows version, installed codecs and application release. If the default program fails, try a browser or convert the file to JPEG or PNG.
Can I open a WebP file on an iPhone?
Modern iPhones and iOS versions generally display WebP in Safari and many updated apps. An older third-party app may still reject the file. If you need to share the image with an unknown app, JPEG is often the safer option for photographs.
Is WebP better than JPEG?
It depends on the purpose. WebP can provide smaller website images and can also support transparency and animation. JPEG is more widely recognized by older applications and is still a practical choice for photographs shared outside the web. Compare the actual output at the quality level you need.
Is WebP better than PNG?
WebP may create a smaller file for many graphics and can support transparency. PNG remains a widely compatible lossless format and is often convenient for screenshots, logos and document images. The best choice depends on required quality, transparency, file size and application support.
Can WebP files contain transparency?
Yes. WebP supports transparent images. However, the application receiving the file must also support WebP transparency. If transparency is lost or replaced with a solid background, convert the image to PNG or use another format supported by the destination.
Can WebP files be animated?
Yes. WebP supports animation, but not every editor, browser version or online service handles animated WebP in the same way. Some programs show only the first frame, and some platforms convert the animation during upload. Test the complete workflow before publishing or sharing it.
Does changing the file extension make WebP compatible?
No. Changing .webp to .jpg or .png only changes the name, not the file’s internal format. Use a proper image converter so the data is encoded in the format required by the receiving application.
Should I convert every WebP image to JPEG?
No. Convert only when the destination does not support WebP or when another format better matches the task. Keep WebP for compatible websites and workflows where its file size and features are useful. Keep the original image before making a conversion, especially if quality or transparency matters.
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