Open Source Applicant Tracking System
An ATS quietly becomes the gatekeeper of your hiring data and your legal exposure at once - every rejected candidate, every note a recruiter typed, and every step that has to survive a discrimination audit lives inside it, and most vendors charge by the seat or the job slot to hold it. The open source applicant tracking systems here keep that candidate pipeline, stage history, and hiring-team notes in a database you run, so the record of who you considered and why stays yours to audit and export rather than locked behind a renewal.

Huly
Open-source team platform combining project management, chat, CRM, HRM, and applicant tracking

OpenCATS
Free and open-source applicant tracking system and recruitment CRM for recruiters

Reqcore
Self-hosted open-source ATS for engineering teams, with no per-seat fees and Docker Compose setup

Hire Gnome
Open-source applicant tracking system for small recruiting and staffing teams