> ## Documentation Index
> Fetch the complete documentation index at: https://docs.harly.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Harly is an open-source applicant tracking system for modern teams.

<Frame caption="Harly — the open-source applicant tracking system, running a candidate pipeline.">
  <img src="https://mintcdn.com/vytral/9d3pwg8gD0R4MdJy/images/banner-harly.webp?fit=max&auto=format&n=9d3pwg8gD0R4MdJy&q=85&s=627344940052c0932d1193a07831b0f8" alt="Harly dashboard showing a candidate list with pipeline stages, filters, and departments." width="1920" height="1440" data-path="images/banner-harly.webp" />
</Frame>

Harly is an applicant tracking system for teams that want their recruiting
workflow, candidate data, and integrations in one workspace. It covers
pipelines, candidate portals, interviews, offers, e-signature, career pages,
automations, and a versioned API. You run it yourself: one Docker Compose
stack, one PostgreSQL database, and your own domain.

<Info>
  This documentation is organized around outcomes. Start with the
  [quickstart](/quickstart) if you are deploying Harly for the first time,
  follow the [tutorials](/tutorials/first-hire) for end-to-end walkthroughs,
  or jump to [integrations](/integrations/overview) and the
  [API](/developers/api-overview) if your workspace is already running.
</Info>

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Install Harly on a VPS with the guided CLI in one command.
  </Card>

  <Card title="Tutorials" icon="graduation-cap" href="/tutorials/first-hire">
    End-to-end walkthroughs from first job to signed offer.
  </Card>

  <Card title="Using Harly" icon="compass" href="/product/overview">
    Learn jobs, pipelines, interviews, offers, and the candidate portal.
  </Card>

  <Card title="Self-hosting overview" icon="server" href="/self-hosting/overview">
    VPS requirements, memory profiles, and DNS setup.
  </Card>

  <Card title="Cloud deployments" icon="cloud" href="/deployment/cloud">
    Deploy with Render, DigitalOcean, Railway, or Fly.io.
  </Card>

  <Card title="Integrations" icon="plug" href="/integrations/overview">
    Connect calendars, video, email, notifications, storage, and signatures.
  </Card>

  <Card title="API and webhooks" icon="code" href="/developers/api-overview">
    Automate Harly with scoped keys, idempotency, and signed events.
  </Card>

  <Card title="Security" icon="shield-check" href="/security/access-control">
    Access control, SSO, SCIM, and privacy.
  </Card>
</CardGroup>

## How Harly is deployed

A Harly installation is a single Docker Compose stack: the Next.js app, a
PostgreSQL 16 database, a background scheduler, file storage, and an optional
Caddy proxy that manages HTTPS. Integrations connect out from the app; nothing
else needs a public port.

<Frame caption="Harly runs as one app process, one database, one scheduler, and optional Caddy.">
  <img src="https://mintcdn.com/vytral/9d3pwg8gD0R4MdJy/images/architecture.svg?fit=max&auto=format&n=9d3pwg8gD0R4MdJy&q=85&s=c5e2e49cb76afac7cd94dcae6207c976" alt="Harly deployment architecture: the web app and scheduler talk to PostgreSQL and storage, with Caddy terminating HTTPS and integrations connecting outbound." width="1200" height="520" data-path="images/architecture.svg" />
</Frame>

## What is open source

Harly is MIT-licensed. The source is on
[GitHub](https://github.com/vytral/harly). You run the official image or
build from source. Candidate data stays on your infrastructure — no Harly
cloud, no data sharing.