microsoft/calculator
Windows Calculator: A simple yet powerful calculator that ships with Windows
31.1k stars · 5.8k forks · C#
Healthy
Healthy: maintained by 2 people in the last 90 days, no known risks.
Why
No rule fired.
What would change this
- A dormant maintenance status, a deprecated or archived package, a successor link, or a critical advisory would change this.
Maintenance
CompleteSlowing
- Human commits, 30 days
- 1
- Human commits, 90 days
- 2
- Human commits, 365 days
- 24
- Bot share of commits, 365 days
- 0%
- Last commit
- Sep 28, 2026 (16 days ago)
- Last human commit
- Sep 28, 2026 (16 days ago)
- Authors, 90 days
- 2
- Last release
- none found
- Median PR merge time
- 4 hours
Responsiveness: of 7 recent issues, 0% got a maintainer reply. Median first response: n/a.
Sources: Commits, Releases, Merged pull requests, Issues
People
Complete- Owner
- Organization
- Commits sampled
- 24 since Oct 14, 2025
- Authors for half of commits
- 2
- Authors for 80% of commits
- 5
- Contributors
- 99
Top committers
- emmche: 25% of commits
- tian-lt: 25% of commits
- gebrilfradj: 17% of commits
- volkcor: 13% of commits
- Avid29: 4% of commits
Sources: Commits, Contributors
Stars
CompleteMostly organic, confidence high
Bursts
- Mar 6, 2019 to Apr 9, 2019: about 13.7k more stars than usual, peak 3.4k in one day, a spike that tapers off. Outside explanation: a Hacker News post.
- May 7, 2019 to May 9, 2019: about 168 more stars than usual, peak 124 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
- Aug 14, 2019 to Aug 18, 2019: about 197 more stars than usual, peak 85 in one day, a spike that tapers off. Outside explanation: a jump in forks.
- Mar 25, 2021 to Mar 30, 2021: about 401 more stars than usual, peak 185 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Aug 12, 2021 to Aug 14, 2021: about 52 more stars than usual, peak 28 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
- Feb 7, 2022 to Feb 8, 2022: about 159 more stars than usual, peak 139 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- May 9, 2022 to May 13, 2022: about 308 more stars than usual, peak 141 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Oct 19, 2022 to Oct 21, 2022: about 150 more stars than usual, peak 88 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- 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.
- Some star bursts have no matching forks, issues, releases, or launch coverage.
- Anyone can buy stars for any repo, so this describes the star history only.
Sources: How star history is analyzed
Risk
CompleteFlags
No risk flags.
License
- Now
- MIT (OSI-approved)
- A year ago
- MIT (OSI-approved)
Packages
No published packages found.
OpenSSF Scorecard: 6.3 out of 10 (via deps.dev).
Sources: GitHub: microsoft/calculator
Badge
Add this to a README to show the current verdict:
[](https://reporadar.ai/microsoft/calculator)Earlier verdicts
- Oct 14, 2026: Healthy
- Oct 14, 2026: Healthy
Computed 11 hours ago · method 2026.10.2