macOS supports WebP in Safari and in the built-in Preview app on Monterey and later, but plenty of older Mac apps, third-party creative tools, and team workflows running on slightly older hardware still struggle with the format.
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macOS added native WebP support gradually across versions in a way that mirrors but does not exactly match Apple's broader platform updates. Safari gained WebP rendering in version 14, which shipped alongside macOS Big Sur (11.0) in late 2020. Before that release, Safari on macOS Catalina (10.15) and earlier could not display WebP images at all, so websites that wanted to support Safari users had to detect Safari via user agent or feature query and serve JPEG or PNG fallbacks instead. The Preview application, the built-in image viewer on Mac that opens by default when you double-click an image file in Finder, gained WebP support in macOS Monterey (12.0) released in October 2021. Earlier Preview versions cannot open WebP files and either display a generic format error or open a blank document with no visible content.
Quick Look, the feature that shows a preview of a file when you press the spacebar in Finder without actually opening the file, also gained WebP support in macOS Monterey alongside Preview. On macOS Big Sur and Catalina, pressing spacebar on a .webp file in Finder shows only the filename, file size, and file type metadata with no visual preview at all. This can be disorienting when you are trying to identify which WebP file from a set of downloads you actually want without opening each one individually in a browser. On macOS Monterey and later, Quick Look shows the full image preview at any size including full screen, which makes triage and file selection across a folder of WebP downloads dramatically faster.
Third-party apps on macOS have adopted WebP at different rates and the lag varies by vendor. Adobe Photoshop added native WebP read and write support on macOS in the 23.2 update released in February 2022, with support for both Intel and Apple Silicon Macs. Affinity Photo added WebP read and write support in version 1.9, which shipped in early 2021. Pixelmator Pro on macOS supports WebP from version 2.1 onwards. Sketch added WebP as an export option in version 55 in 2019 but reading WebP files for editing directly remained limited until later versions. If you are on an older macOS, an older creative tool release, or a managed Mac where IT controls software versions, converting WebP to PNG using FixTools in any browser remains the most reliable approach across the long tail of Mac apps.
There is also a Finder behaviour to keep in mind. On macOS Catalina and Big Sur, where Finder cannot generate a thumbnail for WebP files, your folder of downloaded WebP images appears as a uniform grid of generic file icons. On Monterey and later, Finder generates proper thumbnails just as it does for JPEG and PNG. Converting WebP files to PNG with FixTools therefore solves the thumbnail and Quick Look problem at the same time as the application compatibility problem, which is particularly useful for designers and content creators who manage large folders of reference imagery and rely on visual identification rather than filenames. The converted PNGs also slot into Finder smart folders, Spotlight image searches, and any tag-based workflows you have set up on the system.
Drag your WebP file onto the FixTools Image Format Converter in your Mac browser and convert to PNG or JPG for universal macOS compatibility.
Step-by-step guide to how to open webp files on mac:
Open WebP in Preview on Mac
Double-click a .webp file in Finder. On macOS Monterey (12.0) and later, Preview opens WebP files natively, including files with transparency, and lets you crop, annotate, and export to other formats from File then Export. You can also drag the .webp file onto the Preview icon in your Dock or Applications folder if double-click is mapped to a different app on your system.
View WebP in Safari
Drag your .webp file from Finder onto an open Safari window, or right-click the file in Finder, choose Open With, and select Safari to view it in the browser. Safari has supported WebP since version 14 alongside macOS Big Sur (11.0), so this works on every macOS release from late 2020 onwards. You can right-click the image inside Safari to save it in another format if needed.
Convert to PNG for full compatibility
For applications that do not support WebP, including older versions of Microsoft Word for Mac, Photoshop before 23.2, older Affinity Photo, older Sketch, and various legacy creative tools that have not been updated, open FixTools in your Mac browser of choice. No installation, no Homebrew step, no Mac App Store visit, and no admin privileges are needed at any point in the workflow.
Upload and convert on FixTools
Drag your WebP file from Finder onto the Image Format Converter upload area, or click the area to open the standard macOS file picker and choose your file. Select PNG for lossless output with transparency preserved, or JPG with a chosen quality level when transparency is not needed. Click Convert and the file is processed locally in seconds.
Download the converted file
Click Download to save the PNG or JPG to your default Downloads folder. The converted file opens immediately in any Mac application that handles images, including Preview, Pages, Keynote, Numbers, Photoshop, Affinity Photo, Sketch, Pixelmator Pro, Microsoft Word, and any other app you regularly use across the Mac ecosystem.
Common situations where this approach makes a real difference:
Mac user on macOS Big Sur opening a downloaded image
A Mac user on macOS Big Sur (11) downloads a product image from a supplier website to attach to a purchase order email. The file arrives as WebP and Preview shows a generic format error when double-clicked. They drag the file onto Safari to confirm the image is intact and looks correct, then open FixTools in a new Safari tab, upload the same WebP, and convert it to PNG. The resulting PNG opens immediately in Preview, Affinity Photo, Pages, and any other Mac application without requiring an operating system upgrade or any new software installation.
Graphic designer needing WebP assets in Affinity Photo
A graphic designer on macOS downloads WebP product assets from a client production site to incorporate into an Affinity Photo composite for a seasonal campaign. Their installed version of Affinity Photo predates the 1.9 release that added WebP support, and updating mid-project would risk file compatibility issues with their existing PSDs. Converting the WebP set to PNG in FixTools through Safari takes under a minute for the entire folder and produces lossless files the designer can open, mask, retouch, and composite in Affinity Photo without any format-related warnings or rendering glitches during the rest of the project.
macOS user inserting an image into Apple Pages
A macOS user drafting a quarterly report in Apple Pages tries to insert a chart image saved from a news site as a supporting figure. Pages on their macOS Catalina installation cannot render the WebP and shows a missing image placeholder along with a generic format warning in the side panel. Converting the file to PNG in Safari using FixTools before inserting resolves the placeholder error, and the image appears correctly inline across all devices where the Pages document is opened later, including iPad and iPhone viewers shared via iCloud.
Get better results with these expert suggestions:
Use Quick Look to preview WebP on Monterey and later
On macOS Monterey (12) and any later release, select a WebP file in Finder and press the spacebar to invoke Quick Look. The full image renders instantly at any size up to full screen, including for files with transparency, and you can use the same Quick Look pane to copy the image to the clipboard or open it in Preview for further work. On older macOS releases Quick Look shows only the file metadata, so upgrading to Monterey or later is the simplest path to system-wide WebP visibility across Finder and the rest of macOS.
Export WebP as PNG directly from Preview
If Preview can open your WebP, which it can on macOS Monterey and later, you can export the file as PNG without using any third-party tool at all. Open the WebP in Preview by double-clicking it in Finder, choose File from the menu bar, then Export, select PNG from the format dropdown in the export dialog, and save. This functionality is built into macOS at no cost, requires no Internet connection, and produces a lossless PNG identical to what FixTools would produce in the browser.
Drag WebP files directly onto Safari to view
On any version of macOS that ships with Safari 14 or later, which means every macOS release from late 2020 onwards, you can drag a WebP file from Finder onto an open Safari window to view it immediately at full quality. This works even on Big Sur where Preview itself cannot open WebP, because Safari's rendering engine handles WebP independently of Preview's codec support. Right-click the image inside Safari and choose Save Image As, then select PNG as the format if you want to save a converted copy directly.
Check your macOS version before troubleshooting WebP issues
Many WebP problems on Mac trace back to the machine still running macOS Catalina (10.15) or Big Sur (11), where Preview, Finder, and Quick Look lack WebP support. macOS Monterey (12) resolved most of these gaps and Ventura, Sonoma, and Sequoia continue to improve on them. Click the Apple menu and choose About This Mac to check your current version. If upgrading is not an option, perhaps because your hardware is older than the upgrade requirements, FixTools handles conversion in Safari with no OS-level WebP support needed at all.
More use-case guides for the same tool:
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