head to head · open source
langchain vs prompt-master
langchain has 148,892 GitHub stars, 25,031 forks, 492 open issues and last shipped yesterday. prompt-master has 15,423 stars, 1,783 forks, 33 open issues and last shipped 12 days ago. langchain leads on adoption by 865% (148,892 vs 15,423 stars). langchain is written in Python under MIT; prompt-master is written in various languages under MIT. langchain has attracted 17% as many forks as stars, prompt-master 12%. langchain was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| langchain | prompt-master | |
|---|---|---|
| GitHub stars | ★ 149K | ★ 15K |
| License | MIT | MIT |
| Written in | Python | — |
| Last push | 2026-11-02 | 2026-10-22 |
| Forks | ⑂ 25K | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 149K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick prompt-master if
- You want the prompt-master feature set and don't need the biggest community
- You prefer the MIT license terms
- You evaluated both and prompt-master fits your workflow better
About langchain
The agent engineering platform. LangChain is a framework for building agents and LLM powered applications. It helps you chain together interoperable components and third party integrations to simplify AI application development — all while future proofing decisions as the underlying technology evolves. [!TIP] Just getting started? Check out Deep Agents — a higher level package built on LangChain for agents that have built in capabilities for common usage patterns such as planning, subagents, file system usage, and more. Quickstart If you're looking for more advanced customization or agent orchestration, check…
read the full langchain overview →
About prompt-master
A Claude skill that writes the accurate prompts for any AI tool. Zero tokens or credits wasted. Full context and memory retention. No re prompting your way to an answer you should have gotten on attempt one. Works with: Claude, ChatGPT, Codex, Grok, Gemini, o1/o3, MiniMax, Cursor, Claude Code, GitHub Copilot, Windsurf, Bolt, v0, Lovable, Devin, Perplexity, Midjourney, DALL E, Stable Diffusion, ComfyUI, Sora, Runway, ElevenLabs, Zapier, Make, and any AI tool you throw at it. 🚀 Installation RECOMMENDED Claude.ai (browser) 1. Download this repo as a ZIP 2. Go to claude.ai → Sidebar → Customize → Skills → Upload a…
read the full prompt-master overview →
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Frequently asked questions
Is langchain or prompt-master more popular?
langchain has 148,892 GitHub stars and prompt-master has 15,423. langchain has the larger community by that measure.
Are langchain and prompt-master free?
Both are open source. langchain is licensed under MIT and prompt-master under MIT. Neither carries a licence fee.
What is the difference between langchain and prompt-master?
langchain is written in Python and prompt-master in various languages. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, langchain or prompt-master?
Choose langchain if you want the larger community (148,892 stars) or its MIT licence terms. Choose prompt-master if its feature set, stack or MIT licence fits better. Both are self-hostable.