Open Source Alternatives to Bun
60 open source Developer Tools options similar to Bun, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
npm65Developer ToolsOakland, USA$10.6MOpen source · Self-hostable
Node.js26Software DevelopmentOpen source · Self-hostable
Webpack29Developer ToolsOpen source · Self-hostable
GitHub77Developer ToolsSan Francisco, United States$100.0MOpen source · Self-hostable
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
- Supabase70DatabaseSan Francisco, United States$933.0M
Open source · Self-hostable
YugabyteDB67DatabaseSunnyvale, United States$266.0MOpen source · Self-hostable
Trigger Device Inc63AI AgentsLondon, United Kingdom$16.5MOpen source · Self-hostable
Airweave63Agentic AISan Francisco, United States$6.0MOpen source · Self-hostable
Liblab62EnterpriseTel Aviv, Israel$42.0MOpen source · Self-hostable
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Appwrite61EnterpriseSan Francisco, United States$37.0MOpen source · Self-hostable
Metabase60Data AnalyticsSan Francisco, United States$8.0MOpen source · Self-hostable
Steel.dev58Developer ToolsTel Aviv, Israel$17.0MOpen source · Self-hostable
Comfy Org58AI Image Generation$30.0MOpen source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
Robusta Dev55DevelopmentTel Aviv, IsraelOpen source · Self-hostable
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
WireMock54Enterprise$6.5MOpen source · Self-hostable
Mem054Agentic AISan Francisco, United States$24.0MOpen source · Self-hostable
DVC54MLOpsSan Francisco, United States$154.0MOpen source · Self-hostable
Wing Cloud54EnterpriseTel Aviv, Israel$20.0MOpen source · Self-hostable
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
MetalBear54Software DevelopmentSan Francisco, United States$12.5MOpen source · Self-hostable
Langflow53Agentic AILisbon, PortugalOpen source · Self-hostable
LlamaIndex Inc.53Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
LiveKit Incorporated53API PlatformSan Francisco, United States$10.0MOpen source · Self-hostable
Ollama52Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
BrowserUse52Agentic AISan Francisco, United States$17.0MOpen source · Self-hostable
RelAI51Agentic AISan Francisco, United States$10.0MOpen source · Self-hostable
Infisical51Developer ToolsSan Francisco, United States$34.8MOpen source · Self-hostable
Magnitude51Agentic AISan Francisco, United States$10.0MOpen source · Self-hostable
Novu51EnterpriseTel Aviv, Israel$6.6MOpen source · Self-hostable
Vocode50Open SourceSan Francisco, United States$3.8MOpen source · Self-hostable
Rasa49Conversational AIBerlin, Germany$13.0MOpen source · Self-hostable
Protocol47Agentic AISan Francisco, United States$3.2MOpen source · Self-hostable
cal.com47Scheduling SoftwareBerlin, GermanyOpen source · Self-hostable
ORY47Identity & Access ManagementBerlin, Germany$17.0MOpen source · Self-hostable
Glue46Agentic AISan Francisco, United States$4.2MOpen source · Self-hostable
Twill46Agentic AISan Francisco, United StatesOpen source · Self-hostable
- Spice AI46Databaseתל אביב - יפו, Israel
Open source · Self-hostable
MLflow45MLOpsSeattle, United StatesOpen source · Self-hostable
Nango45API PlatformUnknown, UnknownOpen source · Self-hostable
Amplication44EnterpriseTel Aviv, IsraelOpen source · Self-hostable
Bubble Lab44Artificial IntelligenceOpen source · Self-hostable
- Litellm42LLM OrchestrationSan Francisco, United States
Open source · Self-hostable
Responsive40EnterpriseSan Francisco, United StatesOpen source · Self-hostable
Testkube39MLOpsTel Aviv, Israel$12.0MOpen source · Self-hostable
Slauth.io38EnterpriseAshburn, United States$1.5MOpen source · Self-hostable
- STStrongLoop38API PlatformSan Mateo, United States$9.0M
Open source · Self-hostable
Glitch37Developer ToolsNew York, United StatesOpen source · Self-hostable
Superagent34Agentic AISan Francisco, United StatesOpen source · Self-hostable
- SOSource32AI InfrastructureSan Francisco, United States$24.0M
Open source · Self-hostable
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Parlant27AI AgentsTel Aviv, IsraelOpen source · Self-hostable
Kantu26Workflow AutomationOpen source · Self-hostable
CRAB26Agentic AIOpen source · Self-hostable
All-Hands AI25Agentic AIOpen source · Self-hostable
Inconvo25Agentic AIUnknown, UnknownOpen source · Self-hostable
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| npm | Developer Tools | Open source · Self-hostable | Oakland, USA | $10.6M | 65 |
| Node.js | Software Development | Open source · Self-hostable | — | — | 26 |
| Webpack | Developer Tools | Open source · Self-hostable | — | — | 29 |
| GitHub | Developer Tools | Open source · Self-hostable | San Francisco, United States | $100.0M | 77 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| Database | Open source · Self-hostable | San Francisco, United States | $933.0M | 70 | |
| YugabyteDB | Database | Open source · Self-hostable | Sunnyvale, United States | $266.0M | 67 |
| Trigger Device Inc | AI Agents | Open source · Self-hostable | London, United Kingdom | $16.5M | 63 |
| Airweave | Agentic AI | Open source · Self-hostable | San Francisco, United States | $6.0M | 63 |
| Liblab | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $42.0M | 62 |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Appwrite | Enterprise | Open source · Self-hostable | San Francisco, United States | $37.0M | 61 |
| Metabase | Data Analytics | Open source · Self-hostable | San Francisco, United States | $8.0M | 60 |
| Steel.dev | Developer Tools | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 58 |
| Comfy Org | AI Image Generation | Open source | — | $30.0M | 58 |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 |
| Robusta Dev | Development | Open source · Self-hostable | Tel Aviv, Israel | — | 55 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |
| WireMock | Enterprise | Open source · Self-hostable | — | $6.5M | 54 |
| Mem0 | Agentic AI | Open source · Self-hostable | San Francisco, United States | $24.0M | 54 |
| DVC | MLOps | Open source · Self-hostable | San Francisco, United States | $154.0M | 54 |
| Wing Cloud | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $20.0M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| MetalBear | Software Development | Open source · Self-hostable | San Francisco, United States | $12.5M | 54 |
| Langflow | Agentic AI | Open source · Self-hostable | Lisbon, Portugal | — | 53 |
| LlamaIndex Inc. | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 53 |
| LiveKit Incorporated | API Platform | Open source · Self-hostable | San Francisco, United States | $10.0M | 53 |
| Ollama | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 52 |
| BrowserUse | Agentic AI | Open source · Self-hostable | San Francisco, United States | $17.0M | 52 |
| RelAI | Agentic AI | Open source · Self-hostable | San Francisco, United States | $10.0M | 51 |
| Infisical | Developer Tools | Open source · Self-hostable | San Francisco, United States | $34.8M | 51 |
| Magnitude | Agentic AI | Open source · Self-hostable | San Francisco, United States | $10.0M | 51 |
| Novu | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $6.6M | 51 |
| Vocode | Open Source | Open source · Self-hostable | San Francisco, United States | $3.8M | 50 |
| Rasa | Conversational AI | Open source · Self-hostable | Berlin, Germany | $13.0M | 49 |
| Protocol | Agentic AI | Open source · Self-hostable | San Francisco, United States | $3.2M | 47 |
| cal.com | Scheduling Software | Open source · Self-hostable | Berlin, Germany | — | 47 |
| ORY | Identity & Access Management | Open source · Self-hostable | Berlin, Germany | $17.0M | 47 |
| Glue | Agentic AI | Open source · Self-hostable | San Francisco, United States | $4.2M | 46 |
| Twill | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 46 |
| Database | Open source · Self-hostable | תל אביב - יפו, Israel | — | 46 | |
| MLflow | MLOps | Open source · Self-hostable | Seattle, United States | — | 45 |
| Nango | API Platform | Open source · Self-hostable | Unknown, Unknown | — | 45 |
| Amplication | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | — | 44 |
| Bubble Lab | Artificial Intelligence | Open source · Self-hostable | — | — | 44 |
| LLM Orchestration | Open source · Self-hostable | San Francisco, United States | — | 42 | |
| Responsive | Enterprise | Open source · Self-hostable | San Francisco, United States | — | 40 |
| Testkube | MLOps | Open source · Self-hostable | Tel Aviv, Israel | $12.0M | 39 |
| Slauth.io | Enterprise | Open source · Self-hostable | Ashburn, United States | $1.5M | 38 |
| STStrongLoop | API Platform | Open source · Self-hostable | San Mateo, United States | $9.0M | 38 |
| Glitch | Developer Tools | Open source · Self-hostable | New York, United States | — | 37 |
| Superagent | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 34 |
| SOSource | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $24.0M | 32 |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 |
| Parlant | AI Agents | Open source · Self-hostable | Tel Aviv, Israel | — | 27 |
| Kantu | Workflow Automation | Open source · Self-hostable | — | — | 26 |
| CRAB | Agentic AI | Open source · Self-hostable | — | — | 26 |
| All-Hands AI | Agentic AI | Open source · Self-hostable | — | — | 25 |
| Inconvo | Agentic AI | Open source · Self-hostable | Unknown, Unknown | — | 25 |