Talking to customers · Independent · 24 Oct 2026

opencats/OpenCATS

Open-source applicant tracking system (ATS) and recruitment CRM for staffing agencies and hiring teams.

← Talking to customers

In simple English

Recruiting teams often struggle to keep track of resumes and interviews across many open jobs. This software is a private database that stores every candidate application and notes from your hiring team. You run it on your own server so you do not pay monthly fees to a cloud service. It requires some technical skill to set up and keep updated. You will spend your time managing user accounts and database backups rather than paying a vendor.

What it is

OpenCATS is a web application written in PHP (a programming language for making websites) that tracks job applicants through every stage of hiring. It stores candidate profiles, resumes, and interview notes in a MySQL (a program that stores and organizes data in tables) database.

What it is good for

This is good for small recruiting agencies or internal hiring teams that want a self-hosted alternative to expensive recruitment tools without losing control of applicant data.

Stars766
LicenceCustom
Latestv0.12.0 (2026-10-22)checked 24 Oct 2026
Last code change2026-10-22
Written inPHP
Setup effort
4 / 5
Payoff
3 / 5
Good
  • Stores all candidate resumes and notes in one private database.
  • Free to use on your own server without per-user subscription fees.
  • Helps track candidates from first application to final job offer.
Watch for
  • Requires a web server running PHP and MySQL to install and run.
  • Custom licence terms need careful reading before commercial use.
  • Ninety-four open issues mean you may encounter bugs that need patience.
Replaces

Paid cloud recruitment software and messy spreadsheets

Works well with

An Apache or Nginx web server

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Install
git clone https://github.com/opencats/OpenCATS.git
cd OpenCATS

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