Convert JPG, PNG, HEIC and more to WebP in seconds, in unlimited batches. Lighter images, faster websites. 100% on-device — no uploads, no tracking.
Convert JPG, PNG, HEIC, GIF and more to WebP — and WebP back to PNG — in unlimited batches, for free. Make website and blog images lighter so pages load faster. Everything runs on your Mac: no uploads, no account, no ads.
FREE, UNLIMITED BATCH CONVERSION
• Any image → WebP
• WebP → PNG
• Drag & drop images or whole folders from Finder or Safari, then click Start
• EXIF and GPS data are removed by default before sharing
READS ALMOST ANY IMAGE
HEIC, PNG, APNG, JPG, GIF, TIFF, BMP, PSD, DNG, JPEG 2000, PBM, PGM, SVG, AVIF (macOS 13 or later), the first page of PDFs, and more.
100% PRIVATE
Unlike online converters, your images never leave your Mac.
PRO FEATURES (IN-APP PURCHASE)
All Features — Lifetime (one-time purchase), or a yearly or monthly subscription
• WebP → JPEG, and animated WebP → GIF
• Encoder settings: quality, lossless, preset, method, Sharp YUV and keep color profile
• Resize by max width/height with the aspect ratio locked
• Before/after preview window with file sizes
• Save your settings as presets, and rename files: numbering, prefix, suffix or replace
• Keep EXIF/GPS data, the original extension and file dates
• Unlimited watermarks
Unlimited Watermark (one-time purchase)
• Add your logo to every image. Without it, the watermark works for 10 images.
MORE
• Full Dark Mode support
• After reinstalling or moving to another Mac, use "Restore purchases"
• Help > In App Purchase shows what each purchase includes
• Some apps may not display WebP color profiles accurately yet
DETAILED ONLINE MANUAL
Every feature is explained in detail, from your first conversion to advanced settings and FAQs, so you can find answers whenever you need them.
https://d1v1b.com/en/products/webp-converter/manual
Questions or feature requests? Email sonice.d1v1b[-]gmail.com (replace [-] with @). The developer usually replies within 24 hours.
Terms of Use: https://d1v1b.com/termofuse
This app hasn’t received enough ratings or reviews to display an overview.
Just get the premium version
BlueTopiary
I have used a lot of methods to convert to WebP, and this is by far the easiest. This tool (paid version) allows me to set a max width OR height, which is excellent for handling landscape and portrait images in the same batch. Then, there's the auto-start feature which makes moving through the process a breeze, when paired with "save in original image folder". I just drop groups of files in to be optimized and its off to the races. Very quick conversion, and I have also found the compressed image sizes to be smaller than several other tools I have used like Squoosh or WebPShop (Photoshop).
Developer Response
Thank you for upgrading and your review.I'm glad to hear that the app is useful for you.
AMAZINGLY quick and efficient.
~SA@26
UPDATE / IT STILL IS what I said in the title, and I use it at least once a day! Original review: I had 22 images I needed convert, which is why I searched Ai to see if I could get one for my Intel iMac in the first place. Be sure to have your folder for converted files selected, because this app It works like lightening!
Developer Response
Thank you for your review!
So good!
PompomPop177
This app saved me with slow to load image-heavy web pages. So simple, straightforward and intuitive to use.
Developer Response
Thank you for your review!
Extremely noticible drop in quality
John_Doe_01
I'm trying to optimize an application but I noticed an extremely high drop in image quality when comparing the input to the output. Colors became subdued, edges were blurry, and everything become pixellated... this doesn't seem to be an issue with other .webp converters that I can find online, which is a shame because I need tons of files processed.
Developer Response
Thank you for your report.I would like to investigate this problem. Could you send me the original and result image? And also, the screenshots that include settings will also help.My email address is sonice.d1v1b(at)gmail.com.Best regards
Fixed the watermark sometimes no longer being added after macOS cleared the app's cache. The watermark image is now stored in a location that macOS does not clean up.
Version 6.3.2
The developer, Reiji Kobayashi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
