microsoft/TypeScript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

111.5k stars · 16.8k forks · Go

Healthy

Healthy: actively maintained by 66 people, no known risks.

Why

No rule fired.

What would change this

Partly checked: maintenance (Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.)
A dormant maintenance status, a deprecated or archived package, a successor link, or a critical advisory would change this.

Maintenance

Partial

Active

Human commits, 30 days: 182
Human commits, 90 days: 415
Human commits, 365 days: 1.8k
Bot share of commits, 365 days: 3%
Last commit: Oct 14, 2026 (1 day ago)
Last human commit: Oct 14, 2026 (1 day ago)
Authors, 90 days: 66
Last release: Sep 30, 2026 (14 days ago)
Median PR merge time: 8 hours

Responsiveness: of 26 recent issues, 100% got a maintainer reply. Median first response: 34 hours.

Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.

Sources: Commits, Releases, Merged pull requests, Issues

People

Complete

Owner: Organization
Commits sampled: 485 since Oct 14, 2025
Authors for half of commits: 4
Authors for 80% of commits: 10
Contributors: 341

Top committers

jakebailey: 25% of commits
andrewbranch: 13% of commits
weswigham: 11% of commits
Copilot: 11% of commits
Andarist: 6% of commits

Shares come from the newest sampled commits, since the commit sample is capped.

Sources: Commits, Contributors

Stars

Complete

Organic, confidence high

Bars show stars gained each week. Orange bars overlap a burst.

Bursts

Jul 22, 2014 to Aug 14, 2014: about 1.2k more stars than usual, peak 293 in one day, a spike that tapers off. We couldn't check for an outside explanation.
Nov 12, 2014 to Nov 14, 2014: about 132 more stars than usual, peak 76 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Mar 5, 2015 to Mar 13, 2015: about 254 more stars than usual, peak 80 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Aug 14, 2020 to Aug 16, 2020: about 292 more stars than usual, peak 136 in one day, a flat block of stars. Outside explanation: a jump in forks, a jump in issues and pull requests.
Nov 24, 2020 to Nov 27, 2020: about 354 more stars than usual, peak 191 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
May 21, 2021 to May 22, 2021: about 167 more stars than usual, peak 164 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Jun 18, 2021 to Jun 18, 2021: about 120 more stars than usual, peak 147 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Oct 21, 2021 to Oct 22, 2021: about 121 more stars than usual, peak 123 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Mar 11, 2022 to Mar 11, 2022: about 59 more stars than usual, peak 85 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Jul 14, 2022 to Jul 14, 2022: about 71 more stars than usual, peak 99 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Aug 27, 2022 to Aug 30, 2022: about 164 more stars than usual, peak 126 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Oct 19, 2022 to Oct 20, 2022: about 122 more stars than usual, peak 87 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Nov 29, 2022 to Nov 30, 2022: about 93 more stars than usual, peak 97 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
May 5, 2023 to May 5, 2023: about 51 more stars than usual, peak 77 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Oct 11, 2023 to Oct 12, 2023: about 90 more stars than usual, peak 70 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Sep 3, 2024 to Sep 3, 2024: about 72 more stars than usual, peak 88 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Mar 11, 2025 to Mar 19, 2025: about 903 more stars than usual, peak 278 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
Sep 23, 2025 to Sep 24, 2025: about 84 more stars than usual, peak 57 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Jul 9, 2026 to Jul 11, 2026: about 214 more stars than usual, peak 173 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Aug 20, 2026 to Aug 24, 2026: about 378 more stars than usual, peak 152 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests, a new release.

8 stars GitHub has since removed (tracked since Oct 13, 2026).

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

The star history looks organic.

Sources: How star history is analyzed

Risk

Complete

Flags

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: 8.2 out of 10 (via deps.dev).

Sources: GitHub: microsoft/TypeScript

Badge

Add this to a README to show the current verdict:

[![RepoRadar](https://reporadar.ai/microsoft/TypeScript/badge.svg)](https://reporadar.ai/microsoft/TypeScript)

Earlier verdicts

Oct 14, 2026: Healthy
Oct 13, 2026: Healthy
Oct 13, 2026: Healthy

Computed 20 hours ago · method 2026.10.2