langchain-ai/langchainjs
The agent engineering platform
⚡ Executive Summary & Quick Facts
Authoritative Sourcelangchainjs is langchainjs is an open-source project written in TypeScript: The agent engineering platform..
| Repository | langchain-ai/langchainjs ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | TypeScript |
| Software License | MIT |
| Community Traction | ★ 18.3K stars · ⑂ 3.4K forks · #802 globally |
| Maintenance | ● Active (Last commit: Oct 16, 2026) · 700 open issues |
| Target Audience | Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+457
STARS · LAST 30 DAYS
15
PER DAY
#161
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +105 | +457 | +1.4K |
| Per day | 15 | 15 | 15 |
| Forks gained | +17 | +69 | +172 |
langchainjs gained 457 stars in the last 30 days, about 15 a day, and now has 18.3K. It is about 4 years old and has averaged roughly 4.6K stars a year. It ranks #161 among TypeScript repositories and #802 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#4579
BEST RANK
Oct 16, 2026
FIRST APPEARANCE
Active
STATUS TODAY
langchainjs has maintained a continuous presence across global trending indexes, peaking at #4579. Below is the 30-day activity profile:
💡 Overview
langchainjs is an open-source project written in TypeScript: The agent engineering platform.
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 langchainjs⚙ 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
langchainjs 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 langchainjs 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 MIT license.
🚀 Getting Started
Install langchainjs using your package manager: `npm install langchainjs`
Initialize your project workspace or configuration file for langchainjs.
Import langchainjs into your codebase or invoke it directly from your terminal.
Execute your test suite or run `langchainjs --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
langchain-ai/langchainjs is currently ranked #802 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #797 | arc53/DocsGPT | Python | ★ 18.3K | Compare ↗ |
| #798 | doitsujin/dxvk | C++ | ★ 18.3K | Compare ↗ |
| #799 | google/libphonenumber | C++ | ★ 18.3K | Compare ↗ |
| #800 | mswjs/msw | TypeScript | ★ 18.3K | Compare ↗ |
| #800 | gastownhall/gastown | Go | ★ 18.3K | Compare ↗ |
| #802 | langchain-ai/langchainjs This Project | TypeScript | ★ 18.3K | |
| #803 | gnachman/iTerm2 | Swift | ★ 18.2K | Compare ↗ |
| #804 | gfx-rs/wgpu | Rust | ★ 18.2K | Compare ↗ |
| #805 | abseil/abseil-cpp | C++ | ★ 18.2K | Compare ↗ |
| #806 | eythaann/Seelen-UI | Rust | ★ 17.9K | Compare ↗ |
| #807 | oblador/react-native-vector-icons | TypeScript | ★ 17.9K | Compare ↗ |
Frequently Asked Questions
What does langchainjs do? +
The agent engineering platform
What language is langchainjs written in? +
The primary language is TypeScript. Topics include: software.
Is langchainjs actively maintained? +
Yes, the last recorded push was on Oct 16, 2026 with 700 open issues being tracked.
How many stars does langchainjs have? +
langchainjs has 18,272 stars and 3,432 forks on GitHub.
How does langchainjs rank among GitHub repositories? +
With 18,272 stars, langchain-ai/langchainjs is ranked #802 globally across all repositories tracked on GitHubRepo and #161 among TypeScript projects.
What license is langchainjs distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
