Foundry376/Mailspring
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
Build with Backblaze B2
SDKs, agent skills, IDE extensions, and reference pipelines from Backblaze Labs. All open source.
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Where it stands
Rank, growth pace and release cadence relative to everything GStars tracks.
5 releases in the last 90 days, the latest 17 days ago, with 254 contributors on GitHub.
The biggest single-day gain in the last year, +34 stars on Sep 15, coincided with release 1.24.1.
Use Cases & Benefits
- A fast, open source, cross-platform email client built with Electron and TypeScript for Mac, Windows, and Linux.
- Offers a lightweight, efficient sync engine in C++ that reduces CPU and RAM usage, improving battery life and performance.
- Use for managing multiple email accounts with features like Unified Inbox and Mail Rules in a desktop environment.
- Use for developers wanting to extend or customize email workflows by building plugins or themes using the plugin architecture.
- Use for localization contributors aiming to improve or add new language translations for a modern email client.
Should you depend on it?
License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.
License
GPL 3.0
Copyleft: distributing software that includes it generally requires releasing your source under the same license.
Community files
- README: present
- Contributing guide: present
- Code of conduct: present
Watch-outs
- GPL-style copyleft: including it in distributed software generally requires releasing your source under the same license.
General guidance from repository metadata, not legal advice. How we score
From the README
Mailspring is a new version of Nylas Mail maintained by one of the original authors. It's faster, leaner, and shipping today! It replaces the JavaScript sync code in Nylas Mail with a new C++ sync engine based on Mailcore2. It uses roughly half the RAM and CPU of Nylas Mail and idles with almost zero "CPU Wakes", which translates to great battery life. It also has an entirely revamped composer and other great new features.
Mailspring's UI is open source (GPLv3) and written in TypeScript with Electron and React - it's built on a plugin architecture and was designed to be easy to extend. Check out CONTRIBUTING.md to get started!
Mailspring's sync engine is spawned by the Electron application and runs locally on your computer. It is open source (GPLv3) and written in C++ and C. For convenience, however, when you set up your development environment, Mailspring uses the latest version of the sync engine we've shipped for your platform so you don't need to pull sources or install its compile-time dependencies.
Daily snapshots
Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots
+236 stars over 73 days across 8 snapshot days; best day +34 on Sep 15.
Forks
1.1K+41
Open issues
21+0
Compared with peers in Web
Fastest-growing repositories GStars tracks in this cohort for the week of Nov 8, by 7-day star growth
| Repository | Stars | +7d | Health | Last release |
|---|---|---|---|---|
| pingdotgg/t3code | 55.7K | +12.2K | 75 | today |
| pbakaus/impeccable | 107.6K | +6.1K | 75 | 1 day ago |
| meta/astryx | 22.8K | +4.8K | 75 | today |
| Renhuai123/ziwei-doushu | 17.5K | +3.7K | 75 | 26 days ago |
| ranxianglei/billion-context | 6.3K | +2.4K | 75 | 3 days ago |
| Foundry376/Mailspring | 18.0K | — | 64 | 17 days ago |
| Category median | 22.8K | +4.8K | 75 | — |
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