A community-curated directory of free, open-source macOS tools. Find an app for the task, check its requirements, and go straight to the official project.
Browse the directory · Recommend an app
- Apps grouped by purpose, with search and filters.
- Project screenshots on hover, with larger previews for touch and keyboard users.
- Short descriptions, practical recommendations, licenses, and official installation links.
- English, Chinese, and Japanese pages.
- Tested by io marks apps personally used by iXiehao. Other listings are checked against public project information. Neither is a security audit or a compatibility guarantee.
Share its source repository, license, official installation link, macOS requirements, and one concrete problem it solves. Include any important permissions or limitations.
We look for accessible source code, a clear open-source license, a usable free version, and a practical Mac use case. Paid extras and separate proprietary products should be clearly identified. Stars alone do not establish quality or safety.
Found an outdated link or description? Open an issue or send a pull request. See the contribution guide (Chinese).
The published site is static. After editing catalog data, translations, or the page template, run npm ci --ignore-scripts and npm run build:search to regenerate all three language editions. Preview from the repository root:
python3 -m http.server 8000 --bind 127.0.0.1 --directory websiteOpen http://127.0.0.1:8000/. Catalog entries live in website/data/apps.json; translations live in website/app.js. Keep all three languages in sync. See the development and deployment docs (Chinese).
Site code: MIT. Listed projects retain their own licenses; their names and icons belong to their respective owners. Inclusion does not imply endorsement.
The site self-hosts Inter and Noto Sans under SIL OFL 1.1 and uses Tabler Icons under MIT. See the brand asset notes for the site’s io mark.