Get a free architecture diagram of any codebase. Without drawing a single box.

Paste a GitHub URL or drop a ZIP. Revibe reads the source and generates architecture diagrams, module maps, and execution flows in about a minute — from the code as it actually is, not from a whiteboard sketch that went stale six sprints ago.

How the architecture diagram generator works

Three steps, no configuration files, no annotations in your source, no local install.

STEP 01

Point it at the code

A public GitHub URL, a private repo through the GitHub App, or a ZIP upload. Revibe clones and indexes the tree.

STEP 02

It reads, it doesn't guess

Entry points, imports, call paths, data stores and service boundaries are traced from the actual source — not inferred from folder names.

STEP 03

You get the drawings

An architecture diagram, a module map, execution flows for the main paths, and a file-by-file breakdown of what each piece does.

What a Revibe architecture diagram actually contains

"Architecture diagram" means a lot of different things depending on who's asking, so here's the specific set you get for free on your first project:

  • System architecture diagram — the components, the boundaries between them, and how requests move across them.
  • Module map — every significant module, what it owns, and what it depends on.
  • Execution flow diagrams — the real code path for the main operations, traced function by function.
  • File roles — what each meaningful file is for, so a 2,000-file repo stops being a wall.
  • System design Q&A — the "why is it built this way" questions, answered against the code.

Diagrams are generated from the source you point at, so when the code changes the diagram can be regenerated. That's the difference between a diagram and a drawing of a diagram.

Frequently asked questions

Is the architecture diagram generator really free?

Your first project is free, no card required. Verified students at .edu and .ac.in addresses get two. After that it's $9 per project or $25 for the Builder Pack — and the 46 diagrams in the public gallery stay free to read forever, no account needed.

How do I generate an architecture diagram from an existing codebase?

Paste the GitHub URL into Revibe, or upload a ZIP if the code isn't on GitHub. There's nothing to install, no config file to write, and you don't need to annotate the source. The generator works from the code itself.

What languages and frameworks does it support?

The gallery alone covers C, C++, Rust, Go, Python, TypeScript, JavaScript, Ruby, Java and PHP, across Next.js, React, Vue, Rails, Django and plain systems code. The analysis works from source structure rather than a fixed per-language ruleset, so unusual stacks generally work too.

How long does it take?

About a minute for a typical repository. Very large codebases take longer — the analysis runs in the background and you get the diagrams when it finishes.

Can I use it on a private repository?

Yes. Connect the Revibe GitHub App for private repos, or upload a ZIP. With the GitHub App connected, pushes can trigger a re-analysis so the diagrams follow the code instead of drifting from it.

Can I export the diagram?

Yes — diagrams and the full written analysis export as documentation, and there's an agent-context export that hands the whole architecture to Claude Code, Cursor or any coding agent as structured JSON.

How is this different from drawing one in Lucidchart or Mermaid?

Those are drawing tools — you still have to understand the codebase first, then draw what you understood, then redraw it when the code moves. Revibe reads the codebase and produces the diagram, so the understanding is the output rather than the prerequisite.

Stop reverse-engineering it by hand. Get the diagram.

One GitHub URL. About a minute. Your first architecture diagram is free.