DocuWriter: AI code documentation tool for any codebase
AI Code Documentation Tool Generate complete AI code documentation for any<br>codebase. In seconds, not months.
DocuWriter is an AI code documentation tool that connects to your repository and generates a full book-style<br>documentation tree from your source code: code documentation, API documentation, and UML<br>diagrams . It keeps everything in sync as your code evolves. No<br>MDX. No prose to maintain. No documentation team<br>required.
Get started
Read FinLocker case study →<br>Used at
EXPLORER<br>src/<br>controllers/<br>UserController.php<br>PaymentService.ts<br>models/<br>User.py<br>services/<br>AuthService.java
UML Sequence Diagram<br>Client<br>Auth<br>DB
login()<br>verify(token)<br>user_row<br>JWT
API API Reference<br>GET/api/usersList all users<br>POST/api/paymentsCreate charge<br>PUT/api/users/:idUpdate user<br>DEL/api/sessionsLogout
DOC Code Documentation
The problem<br>Most engineering teams have no documentation. Or what they have is three years out of date.
"We inherited a 12-year-old codebase and nobody<br>knows how it works anymore."
– every engineering team ever
"Our docs are so stale that nobody trusts them. We<br>just ask the senior engineer."
– the senior engineer who is tired
"We're onboarding eight new hires next quarter and<br>they can't find anything."
– the head of engineering writing this on a flight
How it works<br>Three steps. No documentation team required.
01
Connect your repo
GitHub, GitLab (incl. self-hosted), Bitbucket, Azure<br>DevOps. OAuth or PAT. Two clicks.
02
DocuWriter reads your code
We analyze your codebase with AST parsing and a code-aware retrieval pipeline , not an LLM editing prose. The result is a<br>complete, hierarchical documentation tree grounded<br>in your actual source.
03
Review, publish, keep it fresh
Edit anything in our editor. Publish to a private<br>team space or a public-facing site. Autopilot watches your repo and opens reviewable update suggestions every time the<br>code changes.
Use cases Built for codebases like yours.
The five reasons our customers actually buy.
Inherited an undocumented codebase
"We bought / merged / inherited 12 years of code<br>with no docs."
→ Tree Documentation Generator
Documentation rot
"Our docs were great in 2022. Now nobody trusts<br>them."
→ Autopilot AI Agent
Onboarding new engineers
"New hires spend their first month asking the same<br>questions."
→ Spaces + AI Q&A
Compliance & audits
"The auditor wants architecture, API, and module<br>documentation by Friday."
→ Full-tree + UML + API Documentation
Handoffs & migrations
"We're handing this codebase to a partner / acquirer<br>/ new team."
→ Generate, edit, export to Markdown / Word / PDF /<br>Confluence / Git
Trusted by engineering teams at
Autopilot AI Agent Documentation that maintains itself.
Most documentation tools assume you'll write<br>everything yourself and remember to keep it updated.<br>You won't. Nobody does.
DocuWriter's Autopilot is the AI documentation tool that watches your connected repositories. When code<br>changes (every push, every merged PR) it reviews the diff,<br>identifies which documents are now wrong, and opens a<br>reviewable suggestion. This is real automatic code documentation : Approve, discard, or edit before anything<br>is published.
Notifications go to Slack, Teams, Google Chat, or<br>your custom webhook. Auto-apply rules let you skip<br>review for low-risk doc-only edits. High-confidence<br>suggestions can be applied automatically; sensitive<br>ones always wait for a human.
Read how Autopilot works →<br>Suggestions inbox All repos 5 pending<br>94% AuthService.refresh()<br>signature changed: 2 docs affected
web · main·commit a4f2c81·2m ago
Approve<br>Discard
91%<br>New endpoint POST /v2/billing/invoices: add to API Reference
billing-api · main·PR #482·14m ago
Approve<br>Discard
87% RetryPolicy renamed to BackoffStrategy: update 4 references
core · main·PR #1207·1h ago
Approve<br>Discard
72%<br>Architecture diagram may be stale: 3 new<br>modules detected
web · main·commit 7d3e9f0·3h ago
Review<br>Discard
58%<br>Possible deprecation: useLegacyClient. Last used 6 months ago
sdk-js · main·commit 0b1c4d2·yesterday
Review<br>Discard
Generators<br>Code documentation, API docs, and UML. No diluted feature sprawl.
Documentation Tree
Complete book-style docs for entire repos.
API Reference
OpenAPI / Swagger / Postman from your code.
UML Diagrams
Class and sequence diagrams (Mermaid / PlantUML).
A focused documentation workflow for teams that need code<br>docs, API references, and diagrams to stay current.
Side by side<br>How it's different from a hosting platform.
Capability<br>DocuWriter
Mintlify / GitBook / ReadMe
Works for codebases with no existing docs
✓ Yes<br>✕ Assumes docs already exist
Generates from raw source. No MDX or DSL required
✓ Yes<br>✕ Authoring in MDX / proprietary<br>DSL
Exports to Confluence, Word, Markdown, PDF, Git
✓ Built-in<br>✕ Hosted on their domain only
Keeps docs in sync with code automatically
✓ Autopilot
Mostly notifications and AI editor assist
Code docs, API docs, and UML...