PicMason · Private by Design
Resize, convert, compress.
A whole batch at once.
PicMason brings batch image processing to your Mac. Add watermarks, set a target file size, and keep every image on your device.
Explore PicMason's key features
Choose a feature to see its screen, or open the image for a closer look.
Review your images and choose what to process.
Batch Pipeline
Process images in parallel batches with progress and cancellation controls
On-Device Only
Everything runs locally — images are never uploaded anywhere
EXIF Stripped by Default
GPS and camera metadata removed by default, opt in to keep it
Common import formats
JPEG · PNG · WebP · HEIC · HEIF · AVIF · TIFF · BMP · GIF
Animated GIFs are processed as a single frame. See Support for export formats and system requirements.
Latest on Mac App Store
What’s new · Read release notes
This update makes batch processing smoother and more reliable. • Faster workspace navigation, image selection, and previews. • Filter controls now adapt better to compact windows. • Exclude images by condition and restore them when needed. • Clearer export status, pause/resume controls, and interrupted-run recovery. • Improved watermark previews, export history, stability, and localization.
About PicMason · Read full description
PicMason is a local-first batch image processing app for macOS. Resize, convert, compress, rename, watermark, and export images in batches while keeping your files on your Mac. Preview output settings before processing and review metadata impact before export. Built for product images, web assets, social graphics, and delivery-ready files.
Learn more: Support · Privacy Policy