Letter Opener vs Markdown Preview
Side-by-side comparison for macOS
Letter Opener
8.0Display winmail.dat files directly in Mail.app
Markdown Preview
7.0Markdown previewer with bundled Quick Look extension
| Metric | Letter Opener | Markdown Preview |
|---|---|---|
| Category | Developer Tools | Developer Tools |
| AI Score | 8.0 | 7.0 |
| 30-day Installs | 1 | 901 |
| 90-day Installs | 7 | 2.0K |
| 365-day Installs | 76 | 2.0K |
| Version | 16.0.7 | 0.0.52 |
| Auto-updates | No | Yes |
| Deprecated | No | No |
| GitHub Stars | 3.8K | 1.1K |
| GitHub Forks | 241 | 56 |
| Open Issues | 5 | 6 |
| License | MIT | MIT |
| Language | Ruby | Swift |
| Last GitHub Commit | 2y ago | 1mo ago |
| First Seen | Nov 3, 2021 | Jul 15, 2026 |
Reviews
Letter Opener
Letter Opener is a macOS app that simplifies viewing winmail.dat files directly in Mail.app, a common issue for users dealing with Outlook-generated emails. It offers developers a tool to preview emails in the browser, enhancing workflow efficiency.
Displays winmail.dat files within Mail.app, allowing users to view rich text and embedded content without extra software.
Pros
- + Effectively handles winmail.dat files, a common issue
- + Actively maintained with a robust community following
- + Open-source MIT license, appealing to developers
Cons
- - Low recent installs indicate limited awareness or adoption
- - Manual updates required, no auto-update feature
Markdown Preview
Markdown Preview is a sleek macOS app for viewing Markdown files with a bundled Quick Look extension. Its integration with macOS and active development make it a useful tool for developers and writers who work with Markdown daily.
Preview Markdown files with a Quick Look extension and standalone viewer.
Pros
- + Quick Look extension integration for seamless previewing
- + Auto-updates ensure the app stays current
- + MIT license allows for open modification and distribution
Cons
- - Limited community discussion beyond GitHub
- - Some UI issues reported in older versions