Open source focus
Open Source Alternatives to Ontologystudio
60 open source Knowledge Graph options similar to Ontologystudio, 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.
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Hindcloud35AI InfrastructureSan Francisco, United States$1.0MOpen source
P3rsona18AI InfrastructureOpen source
Quantty15Foundation ModelOpen source
SparklaAI InfrastructureOpen source
GenoryxFoundation ModelOpen source
SandlmFoundation ModelOpen source
TanakasunAI OrchestrationOpen source
Beacon KpitAI InfrastructureOpen source
MassgeneralbrighamHealthTechOpen source
ChamsAI InfrastructureOpen source
CitalaAI InfrastructureOpen source
JunedaFoundation ModelOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Weaviate60Vector DatabaseAmsterdam, NetherlandsOpen source
CHAI: AI Platform56AI InfrastructurePalo Alto, United States$3.7MOpen source
pleias55AI InfrastructureParis, FranceOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Twelve Labs51Video AISan Francisco, United States$62.0MOpen source
Visual Layer50DatabaseTel Aviv, Israel$7.0MOpen source · Self-hostable
Prem47Artificial IntelligenceZurich, Switzerland$100.0MOpen source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
Co Build40AI Collaboration Tools$8.5MOpen source
Neptune39MLOpsNew York, United States$11.0MOpen source
Catercore35AI InfrastructureSan Francisco, United StatesOpen source
TandemTrace35Agentic AIOpen source
Opactor33Agentic AISan Francisco, United StatesOpen source
QUBRID30Cloud InfrastructureOpen source
- Svitch26AI GovernanceSan Francisco, United States
Open source
- COCometAPI15API PlatformSha Tin, China
Open source
Modelglass12AI InfrastructureSydney, AustraliaOpen source
MCP.so10Developer ToolsOpen source · Self-hostable
Batchfoundry5AI InfrastructureSan Francisco, United StatesOpen source
Axonmedical4HealthTechOpen source
AvyiFoundation ModelOpen source
WelliamAI InfrastructureOpen source
PindotAI Tools & AppsOpen source
BlissqAI InfrastructureOpen source
AntesisFoundation ModelOpen source
RccsiFoundation ModelOpen source
TieroFoundation ModelOpen source
CircularaiAI InfrastructureOpen source
ProductexAI SolutionsOpen source
HooyooAI SolutionsOpen source
MinhyeokFintechOpen source
- ExploitcheckCybersecurity
Open source
TheclearpointAgentic AIOpen source
EyrusAI InfrastructureOpen source
Th AiFoundation ModelOpen source
CeritiAI ServicesOpen source
UseacreAI Search EngineOpen source
CicadaplatformAI InfrastructureOpen source
DrivecorpsAI InfrastructureOpen source
ClohaFoundation ModelOpen source
VectorieAI InfrastructureOpen source
KlamaFoundation ModelOpen source
Coworker.aiHR TechOpen source
CrisopeyaFoundation ModelOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 | |
| Hindcloud | AI Infrastructure | Open source | San Francisco, United States | $1.0M | 35 | |
| P3rsona | AI Infrastructure | Open source | — | — | 18 | |
| Quantty | Foundation Model | Open source | — | — | 15 | |
| Sparkla | AI Infrastructure | Open source | — | — | — | |
| Genoryx | Foundation Model | Open source | — | — | — | |
| Sandlm | Foundation Model | Open source | — | — | — | |
| Tanakasun | AI Orchestration | Open source | — | — | — | |
| Beacon Kpit | AI Infrastructure | Open source | — | — | — | |
| Massgeneralbrigham | HealthTech | Open source | — | — | — | |
| Chams | AI Infrastructure | Open source | — | — | — | |
| Citala | AI Infrastructure | Open source | — | — | — | |
| Juneda | Foundation Model | Open source | — | — | — | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 | |
| Weaviate | Vector Database | Open source | Amsterdam, Netherlands | — | 60 | |
| CHAI: AI Platform | AI Infrastructure | Open source | Palo Alto, United States | $3.7M | 56 | |
| pleias | AI Infrastructure | Open source | Paris, France | — | 55 | |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 | |
| Twelve Labs | Video AI | Open source | San Francisco, United States | $62.0M | 51 | |
| Visual Layer | Database | Open source · Self-hostable | Tel Aviv, Israel | $7.0M | 50 | |
| Prem | Artificial Intelligence | Open source | Zurich, Switzerland | $100.0M | 47 | |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 | |
| Co Build | AI Collaboration Tools | Open source | — | $8.5M | 40 | |
| Neptune | MLOps | Open source | New York, United States | $11.0M | 39 | |
| Catercore | AI Infrastructure | Open source | San Francisco, United States | — | 35 | |
| TandemTrace | Agentic AI | Open source | — | — | 35 | |
| Opactor | Agentic AI | Open source | San Francisco, United States | — | 33 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| AI Governance | Open source | San Francisco, United States | — | 26 | ||
| COCometAPI | API Platform | Open source | Sha Tin, China | — | 15 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| MCP.so | Developer Tools | Open source · Self-hostable | — | — | 10 | |
| Batchfoundry | AI Infrastructure | Open source | San Francisco, United States | — | 5 | |
| Axonmedical | HealthTech | Open source | — | — | 4 | |
| Avyi | Foundation Model | Open source | — | — | — | |
| Welliam | AI Infrastructure | Open source | — | — | — | |
| Pindot | AI Tools & Apps | Open source | — | — | — | |
| Blissq | AI Infrastructure | Open source | — | — | — | |
| Antesis | Foundation Model | Open source | — | — | — | |
| Rccsi | Foundation Model | Open source | — | — | — | |
| Tiero | Foundation Model | Open source | — | — | — | |
| Circularai | AI Infrastructure | Open source | — | — | — | |
| Productex | AI Solutions | Open source | — | — | — | |
| Hooyoo | AI Solutions | Open source | — | — | — | |
| Minhyeok | Fintech | Open source | — | — | — | |
| Cybersecurity | Open source | — | — | — | ||
| Theclearpoint | Agentic AI | Open source | — | — | — | |
| Eyrus | AI Infrastructure | Open source | — | — | — | |
| Th Ai | Foundation Model | Open source | — | — | — | |
| Ceriti | AI Services | Open source | — | — | — | |
| Useacre | AI Search Engine | Open source | — | — | — | |
| Cicadaplatform | AI Infrastructure | Open source | — | — | — | |
| Drivecorps | AI Infrastructure | Open source | — | — | — | |
| Cloha | Foundation Model | Open source | — | — | — | |
| Vectorie | AI Infrastructure | Open source | — | — | — | |
| Klama | Foundation Model | Open source | — | — | — | |
| Coworker.ai | HR Tech | Open source | — | — | — | |
| Crisopeya | Foundation Model | Open source | — | — | — |