Compare · OpenVisio vs CodeGraph
OpenVisio vs CodeGraph: same idea for agents, different idea for humans
CodeGraph is the breakout tool of the code-graph category — a pre-indexed knowledge graph of your codebase, synced on changes, served locally over MCP so agents make fewer tool calls and read fewer files. If that description sounds like OpenVisio, it should: both tools bet on the same architecture (local-first, pre-computed graph, MCP).
The fork in the road is who the graph is for. CodeGraph is built for the agent alone. OpenVisio renders the identical graph as an interactive map — a 3D city of your codebase, an atlas of symbols, dependency views — with a narrator that explains the architecture and cites exact files. Your agent gets the context; you get to see it.
What CodeGraph is: CodeGraph is a widely-adopted pre-indexed code knowledge graph for coding agents, 100% local, MIT-licensed.
CodeGraph vs OpenVisio at a glance
| CodeGraph | OpenVisio | |
|---|---|---|
| Agent-facing MCP graph | Yes | Yes — context, symbols, dependents, hotspots, skeleton |
| Human-facing visual map | No | Yes — 2D graph, atlas, and 3D city views |
| Guided onboarding (narrator) | No | Yes — explains architecture with path:line citations |
| Watch the agent live | No | Yes — spotlight mode lights up files as the agent reads them |
| Local-first | Yes | Yes |
| License | MIT | MIT |
| Web version (no install) | No | Yes — index a GitHub URL entirely in your browser |
Use CodeGraph when…
- You want an agent-only context layer and don’t need any visual or onboarding surface.
- Your stack already standardized on it — the agent-side benefits are similar.
Use OpenVisio when…
- You want one graph serving both audiences: MCP for the agent, a live map and narrator for the team.
- You onboard engineers (or yourself) onto unfamiliar repos and want the map, not just the API.
- You want a zero-install path — paste a GitHub URL and explore in the browser.
Frequently asked questions
Do OpenVisio and CodeGraph solve the same problem?
For the agent, largely yes: both pre-compute a local code graph and serve it over MCP so agents stop crawling files. OpenVisio additionally renders that graph as an interactive visual map with a narrator for human onboarding — CodeGraph has no visual layer.
Is OpenVisio also local and open source?
Yes. The CLI and MCP server are MIT-licensed and run entirely on your machine; indexing is deterministic tree-sitter parsing with no LLM. The web app can index a repo fully in your browser.
Can I try OpenVisio without installing anything?
Yes — open the web app, paste any public GitHub URL, and the map builds in your browser in seconds. The npm install is only needed for the MCP server your agent uses.
See your codebase as a map — right now
Paste any GitHub URL and the map builds in your browser in seconds. No install, no account, nothing uploaded.
Try it freeor npm install -g openvisio for the MCP server