
Mylar3
Automated comic book downloader and library manager
1.5k stars 142 forks last commit first released GPL-3.0
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No commits since 17 Aug 2025. Check the issue tracker before you rely on it.

Mylar3 is a web-based automation tool for building and maintaining a comic book library. It monitors series you follow, searches for new issues via NZB and torrent sources, and then post-processes downloads into an organized collection.
Key Features
- Series watchlists with monitoring for new issues and updated information
- Integration with common NZB and torrent download clients, plus “blackhole” workflows
- Automatic grabbing, sorting, and configurable file/folder renaming
- Weekly pull-list browsing and monitoring, including viewing releases weeks ahead
- Library scanning to find and download missing issues
- Failed-download handling to retry with alternative releases
- Issue metadata tagging (built on a modified ComicTagger) and series information export
- Notifications for snatches/downloads via supported notification services
- Story-arc tracking to help maintain reading order across series
Use Cases
- Automatically keep up with ongoing comic series and new weekly releases
- Repair and complete an existing library by detecting and fetching missing issues
- Standardize naming, folder layout, and embedded metadata for reader apps and managers
Limitations and Considerations
- Primarily focused on comic formats (CBR/CBZ); trade paperbacks/graphic novels are monitored with some workflow limitations
- Requires working indexer/provider configuration and compatible download clients for best results
Mylar3 is well-suited for homelab and media-automation setups that want hands-off comic acquisition and consistent library organization. It combines release monitoring, download automation, and robust post-processing to help keep collections complete and tidy.
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