Small tools.
Exact results.

Astrum Vitriolum makes focused apps for Mac and iPhone. Each one does a single job. Choose a free app or a one-time purchase, with no subscriptions or accounts.

Featured · Nomen for Mac

Hundreds of photos.
Named by date taken.

See every new name before anything changes, and undo a rename even after a restart, as long as the files haven't been moved or renamed since. Basic rules are free with no limit on files; naming by date taken is part of Nomen Pro, a one-time purchase.

Explore Nomen
Nomen screenshot

Apps

EXIF CleanerRemoves location and camera details from photos before you share them.One-time purchase
  • Mac
  • iPhone
  • iPad
AlphaRemoves the background from one photo or a whole folder, on your Mac.One-time purchase
  • Mac
JPEG JackalShrinks JPEG files and keeps the photos sharp.Free + upgrade
  • Mac
  • iPhone
  • iPad
HiderHides faces and personal details in photos and screenshots, on your Mac.Free + upgrade
  • Mac
MD5 MasterDrop a file. Calculate its MD5. Check it against the original.Free
  • Mac
GifViewerA fast viewer for animated GIF, APNG and WebP.Free + upgrade
  • Mac
Bubble Wrap ClassicA photo-realistic sheet of bubble wrap that never runs out.Free + upgrade
  • iPhone
  • iPad
Desktop LensA magnifying glass for anything on your screen.One-time purchase
  • Mac
NomenRenames photos and files in batches. Nomen Pro names them by the date taken.Free + upgrade
  • Mac

The studio

We build utilities we want to use ourselves: tools for photos, images and files that open fast, do what they say and get out of the way. Since 2015, we have kept improving these native apps around everyday tasks: preparing a photo, protecting private details and getting a file ready to share.

9 apps
8 for Mac · 3 for iPhone and iPad. Some run on both.
One-time purchase
No subscriptions. Some apps are free.
Native
Built for macOS and iOS with Apple's own frameworks.

Practical guides

Remove location from a photo · Fit a photo into an upload limit · Remove backgrounds from a folder

Press kit and review contact