o1-labs/o1js
TypeScript framework for zk-SNARKs and zkApps
⚡ Executive Summary & Quick Facts
Authoritative Sourceo1js is o1js is an open-source project written in TypeScript: TypeScript framework for zk-SNARKs and zkApps..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), o1-labs/o1js has accumulated 605 GitHub stars and 172 forks. It is written in TypeScript, licensed under Apache-2.0, and ranks #9,502 globally. It is actively maintained with the latest commit recorded on Oct 26, 2026.”
| Repository | o1-labs/o1js ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | TypeScript |
| Software License | Apache-2.0 |
| Community Traction | ★ 605 stars · ⑂ 172 forks · #9,502 globally |
| Maintenance | ● Active (Last commit: Oct 26, 2026) · 251 open issues |
| Target Audience | Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 92/100 · Grade AYes, o1js is actively maintained. Continuous telemetry recorded the last code commit on Oct 26, 2026 (3 days ago). Supported by 605 stars and 172 community forks, this repository holds a calculated health index of 92/100, reflecting very active (commits within last 14 days) and active community feedback (251 open).
Star History
Add Live Star History & Verified Badges to README.md
Keep your repository README looking professional and dynamic. As our continuous crawler records new stars, these official SVG badges update in real time with zero maintenance.
Renders your high-resolution star trajectory chart right inside your GitHub README or project docs.
[](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_badge) [](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_badge) [](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_badge) [](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_badge) [](https://githubrepo.cloud/repo/o1-labs/o1js?utm_source=readme_badge)Momentum
+15
STARS · LAST 30 DAYS
1
PER DAY
#1,167
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +7 | +15 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +1 | +3 | +10 |
o1js gained 15 stars in the last 30 days, about 1 a day, and now has 605. It is about 5 years old and has averaged roughly 121 stars a year. It ranks #1,167 among TypeScript repositories and #9,502 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#10670
BEST RANK
Oct 26, 2026
FIRST APPEARANCE
Active
STATUS TODAY
o1js has maintained a continuous presence across global trending indexes, peaking at #10670. Below is the 30-day activity profile:
💡 Overview
o1js is an open-source project written in TypeScript: TypeScript framework for zk-SNARKs and zkApps.
Engineered for speed, consistency, and developer ease, it solves common hurdles in TypeScript. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in TypeScript for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ npm install o1js⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Node.js >= 18, npm, pnpm or bun
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
o1js coordinates its core functionality through a modular TypeScript pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed o1js into TypeScript backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install o1js using your package manager: `npm install o1js`
Initialize your project workspace or configuration file for o1js.
Import o1js into your codebase or invoke it directly from your terminal.
Execute your test suite or run `o1js --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
o1-labs/o1js is currently ranked #9,502 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #9,496 | ferstl/depgraph-maven-plugin | Java | ★ 606 | Compare ↗ |
| #9,496 | plone/volto | JavaScript | ★ 606 | Compare ↗ |
| #9,496 | Aidoku-Community/sources | Rust | ★ 606 | Compare ↗ |
| #9,496 | maathimself/mailflow | JavaScript | ★ 606 | Compare ↗ |
| #9,496 | SethRobinson/Patchy | C++ | ★ 606 | Compare ↗ |
| #9,502 | o1-labs/o1js This Project | TypeScript | ★ 605 | |
| #9,502 | scalate/scalate | Scala | ★ 605 | Compare ↗ |
| #9,502 | OpenHFT/Chronicle-Wire | Java | ★ 605 | Compare ↗ |
| #9,502 | uselagoon/lagoon | TypeScript | ★ 605 | Compare ↗ |
| #9,502 | N4S4/synology-api | Python | ★ 605 | Compare ↗ |
| #9,502 | dapr/components-contrib | Go | ★ 605 | Compare ↗ |
Frequently Asked Questions
What does o1js do? +
TypeScript framework for zk-SNARKs and zkApps
Is o1js actively maintained in 2026? +
Yes, o1js is actively maintained. The latest code push was recorded on Oct 26, 2026 (3 days ago). It holds a calculated Maintenance Health Score of 92/100 (A rating) with 605 stars and 251 open issues.
What language is o1js written in? +
The primary language is TypeScript. Topics include: software.
How many stars does o1js have? +
o1js has 605 stars and 172 forks on GitHub.
How does o1js rank among GitHub repositories? +
With 605 stars, o1-labs/o1js is ranked #9,502 globally across all repositories tracked on GitHubRepo and #1,167 among TypeScript projects.
What license is o1js distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
