ReactiveX/RxJava
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
48.2k stars · 7.6k forks · Java
Caution
Caution: one person wrote most of the recent commits.
Why
- One person wrote 90% of human commits in the last year, so the project depends on them continuing. (source 1, source 2)
What would change this
- A second person takes a substantial share of commits.
Maintenance
CompleteActive
- Human commits, 30 days
- 8
- Human commits, 90 days
- 39
- Human commits, 365 days
- 210
- Bot share of commits, 365 days
- 39%
- Last commit
- Oct 14, 2026 (1 day ago)
- Last human commit
- Oct 14, 2026 (1 day ago)
- Authors, 90 days
- 9
- Last release
- Aug 5, 2026 (2 months ago)
- Median PR merge time
- under an hour
Responsiveness: of 10 recent issues, 100% got a maintainer reply. Median first response: 2 hours.
Sources: Commits, Releases, Merged pull requests, Issues
People
Complete- Owner
- Organization
- Commits sampled
- 210 since Oct 14, 2025
- Authors for half of commits
- 1
- Authors for 80% of commits
- 1
- Contributors
- 301
Top committers
- akarnokd: 90% of commits
- JimmyLiuJia: 2% of commits
- Vasiliy Mikhailov: 1% of commits
- Copilot: 1% of commits
- cuishuang: 1% of commits
Sources: Commits, Contributors
Stars
CompleteOrganic, confidence high
Bursts
- Sep 11, 2021 to Sep 12, 2021: about 86 more stars than usual, peak 74 in one day, a spike that tapers off. Outside explanation: a jump in forks.
- Feb 4, 2024 to Feb 5, 2024: about 55 more stars than usual, peak 48 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
- 125 stars on a repo created before February 2013 have no date, so they aren't in the chart.
- 1 stars GitHub has since removed (tracked since Oct 14, 2026).
Anyone can buy stars for any repo; bursts alone don't prove the owner did.
- The star history looks organic.
- 125 stars on the creation day are undated (before 2013-02-10) and are not counted.
Sources: How star history is analyzed
Risk
CompleteFlags
No risk flags.
License
- Now
- Apache-2.0 (OSI-approved)
- A year ago
- Apache-2.0 (OSI-approved)
Packages
No published packages found.
OpenSSF Scorecard: 8.0 out of 10 (via deps.dev).
Sources: GitHub: ReactiveX/RxJava
Badge
Add this to a README to show the current verdict:
[](https://reporadar.ai/ReactiveX/RxJava)Earlier verdicts
- Oct 14, 2026: Caution
- Oct 13, 2026: Caution
- Oct 13, 2026: Caution
Computed 16 hours ago · method 2026.10.2