# LangChain review

> The agent engineering platform.

Devtoolwatch Board, the week of Oct 25–31, 2026. Canonical page: https://index.devtoolwatch.com/tools/langchain/

## LangChain at a glance

- **Category:** [Agent frameworks](https://index.devtoolwatch.com/categories/agent-frameworks/)
- **Website:** [docs.langchain.com/langchain](https://docs.langchain.com/langchain/)

## Usage data (the week of Oct 25–31, 2026)

- Board rank: #318 overall, #33 in Agent frameworks, momentum score 28
- Downloads that week: 41.1M (−1% vs 4-week average)
- New GitHub stars per week (last 12 weeks): Aug 9: 615; Aug 16: 570; Aug 23: 491; Aug 30: 504; Sep 6: 489; Sep 13: 502; Sep 20: 440; Sep 27: 322; Oct 4: 383; Oct 11: 563; Oct 18: 468; Oct 25: 472

## LangChain alternatives

| Rank | Tool | Stars | Downloads/wk |
|---|---|---|---|
| #1 | [Harness²](https://index.devtoolwatch.com/tools/google-research-harness2/) | 21.7k | – |
| #2 | [HyperFrames](https://index.devtoolwatch.com/tools/heygen-com-hyperframes/) | 76.6k | 1.5M |
| #3 | [AgentScope](https://index.devtoolwatch.com/tools/agentscope-ai-agentscope/) | 35k | 51.4k |
| #4 | [AG-UI](https://index.devtoolwatch.com/tools/ag-ui/) | 16.9k | 4.6M |
| #5 | [LangGraph](https://index.devtoolwatch.com/tools/langgraph/) | 44.2k | 18.5M |
| #6 | [Bifrost](https://index.devtoolwatch.com/tools/maximhq-bifrost/) | 9.3k | – |

## LangChain FAQ

### How popular is LangChain?

LangChain has 148.8k GitHub stars as of Nov 1, 2026. It gained 472 new stars in the week of Oct 25–31, 2026, against a 12-week average of 485 a week. Its main package had about 41.1M downloads that week, −1% against its own 4-week average. That made it #33 among AI agent frameworks on the Devtoolwatch Board.

### What are the best alternatives to LangChain?

Other AI agent frameworks on the Devtoolwatch Board in the week of Oct 25–31, 2026, by momentum: Harness² (#1), HyperFrames (#2), AgentScope (#3), AG-UI (#4), LangGraph (#5). The alternatives table above has their numbers.

## Sources

1. [Devtoolwatch Board, the week of Oct 25–31, 2026](https://index.devtoolwatch.com/)