ZAR is now free for all public repositories. Start automating your docs today →
Zero-effort Automated Readme

Docs that write
themselves.

Push code. ZAR reads the diff, understands what changed, and opens a PR with updated documentation. Automatically.

Install GitHub App ↗See how it works

TRUSTED BY DEVELOPERS AT

GitHubGitHub
VercelVercel
AnthropicAnthropic
RailwayRailway
SupabaseSupabase
LinearLinear
StripeStripe
NotionNotion
FigmaFigma
Next.jsNext.js
CursorCursor
TailwindTailwind
GitHubGitHub
VercelVercel
AnthropicAnthropic
RailwayRailway
SupabaseSupabase
LinearLinear
StripeStripe
NotionNotion
FigmaFigma
Next.jsNext.js
CursorCursor
TailwindTailwind
GitHubGitHub
VercelVercel
AnthropicAnthropic
RailwayRailway
SupabaseSupabase
LinearLinear
StripeStripe
NotionNotion
FigmaFigma
Next.jsNext.js
CursorCursor
TailwindTailwind
GitHubGitHub
VercelVercel
AnthropicAnthropic
RailwayRailway
SupabaseSupabase
LinearLinear
StripeStripe
NotionNotion
FigmaFigma
Next.jsNext.js
CursorCursor
TailwindTailwind
2min
average setup time
100%
automated, zero manual work
< 30s
from commit to PR

"ZAR saved us hours every sprint. New engineers understand our codebase in days, not weeks."

S
Salem A.
CTO, Early adopter

HOW IT WORKS

From push to PR in seconds.

01Developer

Push your code

$ git commit -m "feat: add payment"
$ git push origin main

Nothing changes in your workflow.

02AI Analysis

ZAR analyzes

● scanning commit abc1234...
→ new endpoint detected
→ README.md outdated

AST parser + Claude AI.

03Result

PR appears

✓ Pull Request #47 opened
README.md    +31 lines
docs/api.md  +67 lines

Review and merge. Done.

< 30sec
avg PR time
82%
accuracy
Zero
config needed

FEATURES

Everything ZAR does.

AST Analysis

Reads code structure, not just text.

  • →Understands functions and classes
  • →Detects new endpoints automatically
  • →Tracks signature changes
src/api/users.py
class UserAPI:
├── def list_users()
├── def create_user()
└── def delete_user() ← NEW
→ README.md needs update
Smart Filtering

Only triggers on what matters.

  • →Skips formatting commits
  • →Ignores dependency bumps
  • →Focuses on API changes
fix: typo in READMEskipped
chore: bump dependenciesskipped
feat: add payment endpointprocessing…
CI Gate

Block merges when docs fall behind.

  • →Posts check-run status
  • →Labels stale PRs
  • →Enforces doc coverage
Pull request #1042Blocked
✗Docs outdated vs. main
README.md missing new endpoint
Cross-repo

Code here. Docs there.

  • →Sync product → docs repos
  • →Keeps monorepos aligned
  • →No copy-paste drift
my-org/backend
↓ sync docs
my-org/docs

PRICING

Simple pricing for everyone.

Free

For open source

$0/mo
Get started free
  • Public repos
  • Unlimited commits
  • PR creation
Most Popular

Pro

For individuals

$19/mo
Start 14-day trial
  • Private repos
  • Style guide
  • Analytics
  • Priority support

Team

For teams

$49/mo
Start 14-day trial
  • CI Gate
  • Cross-repo sync
  • MCP Server
  • Team dashboard

Enterprise

For organizations

Custom
Book a demo →
  • SSO / SAML
  • Custom SLA
  • Dedicated support

14-day free trial · No credit card required

Questions?

Under 2 minutes. Install ZAR GitHub App, select repos, push any commit. ZAR starts working immediately.

Never write docs manually again.

ZAR handles it — on every commit, automatically.

Install for free →

Free for public repos · 2 minute setup