Project Summary
A fast dependency injector for Android and Java.
Dagger 2 is a compile-time evolution approach to dependency injection. Taking the approach started in Dagger 1.x to its ultimate conclusion, Dagger 2.0 eliminates all reflection, and improves code clarity by removing the traditional ObjectGraph/Injector in favor of user-specified @Component interfaces.
This github project represents the Dagger 2 development stream. The earlier project page (Square, Inc's repository) represents the earlier 1.0 development stream.
Both versions have benefitted from strong involvement from Square, Google, and other contributors.
In a Nutshell, Dagger 2...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 37 years of effort (COCOMO model)
starting with its first commit in August, 2012
ending with its most recent commit 3 days ago
Quick Reference
Apache License 2.0
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These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
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Vulnerability Exposure Index
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30 Day SummaryDec 16 2025 — Jan 15 2026
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12 Month SummaryJan 15 2025 — Jan 15 2026
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