Open source focus
Open Source Alternatives to Writingcodeai
60 open source AI Coding Assistant options similar to Writingcodeai, 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.
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
kuafuai8Agentic AIBeijing, ChinaOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Codeium71Artificial IntelligenceMountain View, United States$396.7MOpen source
Sourcegraph (Cody)66AI Coding AssistantSan Francisco, United States$301.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Graphite55AI Coding AssistantSan Francisco, United StatesOpen source
All-Hands AI50Agentic AIBoston, United States$5.0MOpen source · Self-hostable
bolt.new49AI Coding AssistantSan Francisco, United StatesOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
- GRGreptile44AI Coding AssistantSan Francisco, United States$6.5M
Open source
Blacksmith Software35AI Coding AssistantSan Francisco, United States$15.0MOpen source
TensorZero29AI Coding AssistantSan Francisco, United States$7.3MOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
Kilo Code20Agentic AISan Francisco, United StatesOpen source · Self-hostable
CodeLane18AI Coding AssistantTel Aviv, IsraelOpen source
Openvisio18Developer ToolsOpen source
Google Gemini Code Assist9AI Coding AssistantMountain View, United StatesOpen source
CodeNut7Web3 DevelopmentOpen source
Agentradio7AI Coding AssistantOpen source
Amadeusbio6BiotechOpen source
Coworker.aiHR TechOpen source
ClauderizerAI Coding AssistantOpen source
QuarterlabsAI Coding AssistantSan Francisco, United StatesOpen source
AioncodeAI Coding AssistantTel Aviv, IsraelOpen source
CommitbenchAI Coding AssistantOpen source
Cursor80Artificial IntelligenceSan Francisco, United States$2.9BOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Lacentral68Frontier AI LabSan Francisco, United States$11.3BOpen source
- MOMoonshot AI68Frontier AI LabBeijing, China$3.9B
Open source
cubic65Supply ChainTel Aviv, IsraelOpen source
Dust65Agentic AIParis, France$15.0MOpen source
CopilotKit64Agentic AISan Francisco, United States$42.0MOpen source
Qodo64AI Coding AssistantTel Aviv, Israel$1.5MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Embedder (YC S25)61AI AgentsSan Francisco, United States$625.0MOpen source
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Modular58AI InfrastructureSan Francisco, United States$380.0MOpen source
- CLClerk56Developer ToolsSan Francisco, United States$69.0M
Open source
CodeRabbit56AI Coding AssistantTel Aviv, Israel$120.0MOpen source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
LightningAI55AI InfrastructureSan Francisco, United StatesOpen source
Traceloop55LLMOpsTel Aviv, Israel$6.1MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$3.0BOpen source
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Modal Labs52Agentic AISan Francisco, United States$693.0MOpen source
Ollama52Foundation ModelSan Francisco, United States$65.0MOpen source · Self-hostable
Manufact Inc.52AI InfrastructureSan Francisco, United States$6.3MOpen source
nao Labs50Agentic AISan Francisco, United StatesOpen source
Imbue47Artificial IntelligenceSan Francisco, United StatesOpen source
Seek AI46AI Coding AssistantTel Aviv, IsraelOpen source
Glue46Agentic AISan Francisco, United States$4.2MOpen source · Self-hostable
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
- Litellm42LLM OrchestrationSan Francisco, United States
Open source · Self-hostable
Blink41Agentic AISan Francisco, United StatesOpen source
Neptune39MLOpsNew York, United States$11.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 | |
| kuafuai | Agentic AI | Open source | Beijing, China | — | 8 | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Codeium | Artificial Intelligence | Open source | Mountain View, United States | $396.7M | 71 | |
| Sourcegraph (Cody) | AI Coding Assistant | Open source | San Francisco, United States | $301.0M | 66 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Graphite | AI Coding Assistant | Open source | San Francisco, United States | — | 55 | |
| All-Hands AI | Agentic AI | Open source · Self-hostable | Boston, United States | $5.0M | 50 | |
| bolt.new | AI Coding Assistant | Open source | San Francisco, United States | — | 49 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| GRGreptile | AI Coding Assistant | Open source | San Francisco, United States | $6.5M | 44 | |
| Blacksmith Software | AI Coding Assistant | Open source | San Francisco, United States | $15.0M | 35 | |
| TensorZero | AI Coding Assistant | Open source | San Francisco, United States | $7.3M | 29 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| Kilo Code | Agentic AI | Open source · Self-hostable | San Francisco, United States | — | 20 | |
| CodeLane | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 18 | |
| Openvisio | Developer Tools | Open source | — | — | 18 | |
| Google Gemini Code Assist | AI Coding Assistant | Open source | Mountain View, United States | — | 9 | |
| CodeNut | Web3 Development | Open source | — | — | 7 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| Amadeusbio | Biotech | Open source | — | — | 6 | |
| Coworker.ai | HR Tech | Open source | — | — | — | |
| Clauderizer | AI Coding Assistant | Open source | — | — | — | |
| Quarterlabs | AI Coding Assistant | Open source | San Francisco, United States | — | — | |
| Aioncode | AI Coding Assistant | Open source | Tel Aviv, Israel | — | — | |
| Commitbench | AI Coding Assistant | Open source | — | — | — | |
| Cursor | Artificial Intelligence | Open source | San Francisco, United States | $2.9B | 80 | |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 | |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| Lacentral | Frontier AI Lab | Open source | San Francisco, United States | $11.3B | 68 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 68 | |
| cubic | Supply Chain | Open source | Tel Aviv, Israel | — | 65 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| CopilotKit | Agentic AI | Open source | San Francisco, United States | $42.0M | 64 | |
| Qodo | AI Coding Assistant | Open source | Tel Aviv, Israel | $1.5M | 64 | |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 | |
| Embedder (YC S25) | AI Agents | Open source | San Francisco, United States | $625.0M | 61 | |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Modular | AI Infrastructure | Open source | San Francisco, United States | $380.0M | 58 | |
| CLClerk | Developer Tools | Open source | San Francisco, United States | $69.0M | 56 | |
| CodeRabbit | AI Coding Assistant | Open source | Tel Aviv, Israel | $120.0M | 56 | |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 | |
| LightningAI | AI Infrastructure | Open source | San Francisco, United States | — | 55 | |
| Traceloop | LLMOps | Open source | Tel Aviv, Israel | $6.1M | 55 | |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 | |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $3.0B | 54 | |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 | |
| Modal Labs | Agentic AI | Open source | San Francisco, United States | $693.0M | 52 | |
| Ollama | Foundation Model | Open source · Self-hostable | San Francisco, United States | $65.0M | 52 | |
| Manufact Inc. | AI Infrastructure | Open source | San Francisco, United States | $6.3M | 52 | |
| nao Labs | Agentic AI | Open source | San Francisco, United States | — | 50 | |
| Imbue | Artificial Intelligence | Open source | San Francisco, United States | — | 47 | |
| Seek AI | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 46 | |
| Glue | Agentic AI | Open source · Self-hostable | San Francisco, United States | $4.2M | 46 | |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 | |
| LLM Orchestration | Open source · Self-hostable | San Francisco, United States | — | 42 | ||
| Blink | Agentic AI | Open source | San Francisco, United States | — | 41 | |
| Neptune | MLOps | Open source | New York, United States | $11.0M | 39 |