WebP Pass
Not claimedWebP Pass converts batches of images between WebP, PNG, and JPEG on your Mac
By Chi Ieong Tai · UtilitiesWhy we expect it: Clear value, careful offline privacy design, and a sensible free-to-Pro model make this a promising Mac utility.
In short
WebP Pass is a Mac utility that converts batches of images between WebP, PNG, and JPEG, showing a live before-and-after size estimate before anything is written. It runs entirely on the device with no upload and no account, and the free tier handles up to three images at a time. Pro adds unlimited batches, HEIC and TIFF sources, and a one-time unlock. What stands out is the live size column, which lets users check estimates before exporting.
Summary by Debuts, based on the App Store listing.About
WebP Pass converts batches of images between WebP, PNG, and JPEG on your Mac. Drop a file, read the live before/after size column, and write only when the estimate looks right. Nothing is uploaded. No account is required.
Free Core — up to 3 images • Drag and drop, or open with ⌘O, to convert between WebP, PNG, and JPEG • One quality control that recalculates the estimated size for every file in the queue • Fully offline, on-device processing with no account
WebP Pass Pro — in-app purchase • Lifetime Pro Unlock — one-time purchase, no subscription • Unlimited queue, HEIC and TIFF sources, and multi-folder drops • One-pass export to both WebP and AVIF, using the same quality and resize settings • Native macOS Shortcuts automation and Finder Quick Action / Services integration • Batch rename tokens, EXIF strip, and max-dimension presets
Native macOS workflow: add files with ⌘O or drag them from Finder, load a sample with ⇧⌘S (File → Load Sample Batch), convert with Return, and undo a batch with ⌘Z. WebP Pass runs in the App Sandbox. It reads only files you choose and keeps folder bookmarks on this Mac. AVIF, Finder Quick Actions, Shortcuts, and batches larger than three images require Pro.
People rate it
Sign in to rate this app. Honest is what counts.
No ratings yet. Tried it? Be the first to rate it.
More Utilities apps
Best new Utilities apps this week
Vodoalarm: vodostaji BiHVodoalarm javlja kad tvoja rijeka naglo raste, pa ne moraš stalno gledati vodostaje
Rokey: Romanian KeyboardType Romanian without worrying about diacritics
Vibe Island: AI Agent MonitorVibe Island is a command center for the AI coding agents running on your Mac
Private AuthenticatorPrivate Authenticator keeps your two-factor authentication codes on your own Apple…
Photo Clean: Photo CleanupA crowded camera roll?
Songbird AlarmWhat if the morning didn't have to start with a loud noise?