Open Core Open Source Tools

Alternative toRelevance AI

Visual AI workflow builder with RAG, agents, and self-hosting

• 159,054 GitHub stars
• CustomLicence Apache-2.0 with additional terms
• #AI Agents

Alternative toSend Anywhere

Free cross-platform file sharing over local network, no cloud

• 95,009 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toAdobe Acrobat

Self-hosted PDF editor with 50+ tools for every PDF task

• 94,607 GitHub stars
• MITLicence MIT

Alternative toCursor

High-performance open source code editor with built-in AI

• 91,958 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Coding

Alternative toPostman

Open source Postman alternative for REST and GraphQL testing

• 80,662 GitHub stars
• MITLicence MIT

Alternative tovMix

Record and stream with multi-source scenes and hardware encoding

• 77,813 GitHub stars
• GPL-2.0Licence GPL-2.0
• #Video

Alternative toNotion

Open source Notion alternative with AI, self-hosted

• 77,613 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toDatadog

Open source dashboards for metrics, logs, and traces

• 77,396 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #Monitoring

Alternative toCleanMyMac X

Mac cleaner, app uninstaller, disk analyzer, and system monitor

• 72,205 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toAirtable

Turn any database into a no-code spreadsheet. Self-hostable.

• 65,308 GitHub stars
• #No Code