head to head · open source
utopia vs obsidian-wiki
utopia has 8,667 GitHub stars, 1,185 forks, 27 open issues and last shipped yesterday. obsidian-wiki has 3,679 stars, 370 forks, 7 open issues and last shipped yesterday. utopia leads on adoption by 136% (8,667 vs 3,679 stars). utopia is written in Rust under Apache-2.0; obsidian-wiki is written in Python under MIT. utopia has attracted 14% as many forks as stars, obsidian-wiki 10%. obsidian-wiki was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (agent-memory, knowledge-base, knowledge-graph), so they are genuine substitutes rather than adjacent tools.
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
| utopia | obsidian-wiki | |
|---|---|---|
| GitHub stars | ★ 8.7K | ★ 3.7K |
| License | Apache-2.0 | MIT |
| Written in | Rust | Python |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 1.2K | ⑂ 370 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick utopia if
- You weight community size — 8.7K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick obsidian-wiki if
- You want the obsidian-wiki feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and obsidian-wiki fits your workflow better
About utopia
Utopia Philosophy · Quick start · Features · Roadmap The enterprise world model built by DeepLethe. It is the first open substrate for knowledge engineering that learns passively and governs itself. Where a knowledge graph or a vector store works to hold present knowledge, Utopia puts time awareness and ontology in the base layer: the knowledge system evolves as material arrives, and conflict detection, reasoning and decision making all run against that ontology. It deploys offline, so a company can stand up a knowledge foundation, a decision core its agents can trust, and a compliance audit trail on hardware it…
read the full utopia overview →
About obsidian-wiki
obsidian wiki A digital brain you grow with your AI agent. It remembers what you figure out, connects it to what you already know, and answers when you ask. English 繁體中文 You solve a hard problem on a Tuesday. Three months later, in a different repo, you solve it again from scratch — because the answer lived in a chat log you'll never find. This fixes that. Point it at a folder, tell your agent what to remember, and it compiles what you learn into interconnected markdown you own. The pattern comes from Andrej Karpathy's LLM Wiki gist: compile knowledge once and keep it current, instead of asking an LLM the same…
read the full obsidian-wiki overview →
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Frequently asked questions
Is utopia or obsidian-wiki more popular?
utopia has 8,667 GitHub stars and obsidian-wiki has 3,679. utopia has the larger community by that measure.
Are utopia and obsidian-wiki free?
Both are open source. utopia is licensed under Apache-2.0 and obsidian-wiki under MIT. Neither carries a licence fee.
What is the difference between utopia and obsidian-wiki?
utopia is written in Rust and obsidian-wiki in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, utopia or obsidian-wiki?
Choose utopia if you want the larger community (8,667 stars) or its Apache-2.0 licence terms. Choose obsidian-wiki if its feature set, stack or MIT licence fits better. Both are self-hostable.