Your codebase
finally explains itself.
AI-powered onboarding for massive repositories using whole-codebase reasoning. Map architecture, generate ramp-up flows, and ship meaningful PRs on day one.
trusted by engineers from
engineer ramp-up · faster
first signal · indexed repo
tokens · whole-codebase reasoning
An operating system for codebase intelligence.
Six tightly integrated systems, woven into one calm surface. Each one is opinionated, fast, and built to make a new engineer feel senior in week one.
Whole-codebase reasoning
Onboardr ingests every file, every reference, every dataflow. The model never bluffs at scope — it answers like a senior who's been here for years.
Live dependency atlas
A real-time map of services, modules, and call graphs. Hover anything to see who imports it, who owns it, and why it exists.
Personalized ramp-up
Based on a new hire's stack, role, and history, Onboardr generates a multi-week onboarding plan with concrete tickets and reading.
Beginner-friendly PRs
Find ten genuinely shippable starter tasks ranked by complexity, ownership, and freshness. No more 'fix a typo' theatre.
Architecture replay
Watch your repo evolve as a cinematic timeline. See the moment the monolith split, when auth was rewritten, when caching landed.
Repo-aware chat
Ask anything. Onboardr answers with citations, code blocks, file links, and a suggested next action — calm, senior, and trustworthy.
From git remote to confident contributor.
Four moves, ninety seconds, zero gatekeeping. Onboardr runs alongside your team, never blocking the path.
- step · 01
Connect a repo
Onboardr clones, indexes, and embeds in under two minutes. Multi-repo, monorepo, polyglot — all welcome.
$ onboardr connect github.com/acme/api - step · 02
Index & reason
We build a deep semantic graph: symbols, types, dataflow, ownership, runtime traces, and freshness signals.
indexed 12,402 files · 18,402 edges · 4 services - step · 03
Generate the plan
A multi-week onboarding plan, tuned to the new hire — the right files, the right people, the right ramp.
plan: 21d default · 4d custom · 6 anchor files - step · 04
Ship in week one
Beginner-friendly PRs, paired with chat, citations, and gentle nudges. Your first contribution is meaningful.
$ onboardr suggest --difficulty easy --owner you
Onboardr maps your repo into a living atlas.
Every service, every contract, every boundary — visualized as a real-time graph that you and your AI co-pilot can navigate together.
Built for the teams who treat code as a craft.
A cinematic look at the surfaces, systems, and signals that make Onboardr feel inevitable.
Engineers stop dreading week one.
Real teams, real metrics. Onboardr ships real outcomes — not vibes.
"By Wednesday of week one, my new hire shipped a real PR — not a typo fix. That was unthinkable a year ago."
"Onboardr replaced a 60-page wiki nobody read. Now the codebase explains itself, and the wiki is obsolete."
"It's the first AI tool that doesn't try to write the code for you. It teaches the codebase. That's the rare thing."
"Our ramp-up time dropped from 21 days to 4. We measured it across nine hires. Onboardr earned its keep in week one."
"Architecture diagrams that are correct on Tuesday and still correct on Friday. Wild."
"It feels like Linear meets Cursor meets Vercel — calm, fast, and obviously built by people who care."
Make your codebase
finally explain itself.
Bring Onboardr into a sandbox repo today. Index, explore, and ship a meaningful PR before the kickoff coffee gets cold.
no credit card · disposable workspace · 90-second index