Metamer for Mac

Quick summary

Metamer is a free macOS utility that gives you direct control over Spotlight’s extended metadata. It exposes 16 extended attributes so you can view and edit embedded file information from a compact, easy-to-use interface. The tool is aimed at anyone who needs straightforward metadata editing without a steep learning curve.

Fields you can edit

• GPS coordinates, rating, and other extended location or quality tags
• Title, author, and description entries commonly used for quick identification
• Keywords, subject lines, and tag-style entries that help with search and sorting
• Comments, creator information, and additional Spotlight-specific attributes

How it improves your workflow

• Speeds up batch or individual metadata edits so large collections stay organized
• Helps keep file information current and consistent across projects and teams
• Offers a simple UI for fast access to attributes without using Terminal commands
• Beneficial for professionals who manage photos, documents, or other digital assets

Alternatives and compatibility notes

• HoudahSpot and Tagr are macOS-focused tools you might consider if you need more advanced search or tagging features
• MetaZ is useful for video metadata editing if that’s your primary content type
• WinRAR (commonly found on Windows) is primarily an archiver and isn't a substitute for a macOS metadata editor

Final thoughts

If your goal is a lightweight, no-cost way to inspect and tweak Spotlight extended attributes on a Mac, Metamer is a practical option. It’s particularly helpful for users maintaining large libraries of files who want an uncomplicated interface for keeping metadata accurate and searchable.