head to head · open source
langchain vs presenton
langchain has 146,562 GitHub stars, 24,508 forks, 492 open issues and last shipped today. presenton has 10,403 stars, 1,596 forks, 31 open issues and last shipped yesterday. langchain leads on adoption by 1,309% (146,562 vs 10,403 stars). langchain is written in Python under MIT; presenton is written in TypeScript under Apache-2.0. langchain has attracted 17% as many forks as stars, presenton 15%. 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 | presenton | |
|---|---|---|
| GitHub stars | ★ 147K | ★ 10K |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 25K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick langchain if
- You weight community size — 147K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick presenton if
- You want the presenton feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and presenton fits your workflow better
About langchain
LangChain is an open source framework for building agents and LLM powered applications, written in Python and released under the MIT license. It lives in the AI and machine learning ecosystem, specifically among AI development platforms, and it works by chaining together interoperable components and third party integrations so that AI application development becomes simpler. The project describes itself as the agent engineering platform, and its abstractions are designed to keep applications working as the underlying technology evolves.
read the full langchain overview →
About presenton
Presenton is an open source AI presentation generator and API, written in TypeScript and licensed under Apache 2.0, that creates, edits, and exports fully editable PowerPoint and PDF decks from a prompt or an uploaded document while running on your own infrastructure or your own model provider keys.
read the full presenton overview →
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Frequently asked questions
Is langchain or presenton more popular?
langchain has 146,562 GitHub stars and presenton has 10,403. langchain has the larger community by that measure.
Are langchain and presenton free?
Both are open source. langchain is licensed under MIT and presenton under Apache-2.0. Neither carries a licence fee.
What is the difference between langchain and presenton?
langchain is written in Python and presenton in TypeScript. 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 presenton?
Choose langchain if you want the larger community (146,562 stars) or its MIT licence terms. Choose presenton if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.