PhotoCaptioner Al

PhotoCaptioner AI writes natural, accurate captions for your photos — right on your Mac.
Point it at a folder or your photo library and let Google Gemini generate a descriptive caption for every image, complete with location-aware place names when GPS data is available. Captions are written directly into each photo's EXIF/IPTC metadata, and your original files are always preserved.
WHY PHOTOCAPTIONER
–	AI-powered captions using Google Gemini's vision and reasoning
–	GPS-verified place names via Google Places for location-aware captions
–	Multiple caption alternatives — pick the one that fits
–	Captions saved into standard EXIF/IPTC fields, readable by Photos, Lightroom, and more

PRIVATE BY DESIGN
Your photos stay on your Mac. The only time an image leaves your computer is the API call you choose to make to Google. There is no PhotoCaptioner account, no cloud upload, and no tracking.

BRING YOUR OWN API KEY
PhotoCaptioner uses your own Google Gemini API key, so AI usage is billed by Google directly to you. A free Gemini tier is available to get started, and you can add a Google Places key for richer location captions.

ONE-TIME PURCHASE
Unlock unlimited captions with a single purchase. No subscription, and all future updates are included. Try it free your first 25 captions are on us.

REQUIREMENTS
–	macOS 15 (Sequoia) or later
–	A Google Gemini API key (free tier available)
–	Optional: a Google Places API key for location-aware captions