Bun

Fast JavaScript runtime and toolkit

67
Warning · 67/100
Automated health estimate

The score summarizes repository activity. Funding is unknown and excluded from the score. These repository signals do not establish financial stability, security, or maintainer availability. How to interpret this data.

Funding
Unknown
Maintenance
Active
Contributors
Some observed
Bus Factor
Medium risk
Metrics last updated: (2026-10-25)

Evidence and limitations

Activity source: oven-sh/bun via the GitHub API. Counts describe this repository, which may be a mirror or only part of the project.

Commits in 30 days
311
Commits in 90 days
1981
Authors accounting for half the sampled commits
2

The 200-commit author sample does not cover the full 90 days. Author counts are lower bounds; concentration describes the sample only.

Few commits can reflect mature software. Commit authors do not establish merge rights, available maintainers, organizational diversity, or knowledge distribution. Funding is unknown; donation links alone do not establish income or runway.

Correct this assessment or provide evidence →

Ways to help Bun

We have not yet checked this project's specific support needs.

Read the repository's contribution and security guidance before proposing work.

Suggest a support route with an official source.

People associated with this project

Profiles include creators, contributors, and former maintainers. This is not a complete roster of the current team.

Overview

Bun is a fast all-in-one JavaScript runtime and toolkit, including a bundler, test runner, and Node.js-compatible package manager.

Importance

  • Fastest JavaScript runtime
  • Growing Node.js alternative
  • Foundation for fast tooling
  • Pushing ecosystem forward

Key Features

  • Speed-focused design
  • Node.js compatibility
  • Built-in bundler
  • Native TypeScript support

Sustainability

Financial sustainability and maintainer capacity have not yet been reviewed against current primary sources. See the evidence and support sections above for available information and a way to suggest corrections.

Dependencies

⬆️ Depends On (1)
Bun
runtime

Dependency Chain

Upstream
Linux Kernel →
Bun

Impact Analysis

1 Direct Dependencies
0 Dependent Projects
🔝 Top-level project