Open Source IT Management Tools

Alternative toSlack

Team messaging for security-sensitive teams with air-gap support

• 39,388 GitHub stars
• #Chat

Alternative toAmazon Kendra

AI-powered document understanding with explainable retrieval

• 39,352 GitHub stars
• MITLicence MIT
• #LLM

Alternative tocPanel & WHM

One-click Docker and SSL from a web-based Linux server panel

• 37,216 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toAmazon S3

One cluster: S3 store, POSIX files, and Iceberg tables

• 35,636 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toNGINX Plus

Serve static files, proxy requests, terminate TLS, and cache content.

• 31,920 GitHub stars
• BSD-2-ClauseLicence BSD-2-Clause

Alternative toZoom

Free video conferencing you can self-host with no account needed

• 30,112 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Video

Alternative toGoogle Cloud Composer

Declarative workflow orchestration for data and DevOps teams

• 29,909 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative to1Password

Cross-platform open source password manager with browser plugin

• 29,338 GitHub stars
• #Security

Alternative toiStat Menus

One menu bar icon replacing a dozen paid macOS apps

• 28,363 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toSlack

Organized team chat with threaded conversations, self-hostable

• 26,085 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Chat