Open source focus
Open Source Alternatives to Fen Technology
60 open source LegalTech options similar to Fen Technology, 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.
- IRIronclad67Legal & ComplianceSan Francisco, United States
Open source
- KIKira Systems10LegalTechToronto, Canada
Open source
Linum Labs34Johannesburg, South AfricaOpen source
LawGeex56LegalTel Aviv, Israel$41.8MOpen source
Vibranium Dome23AI AgentsOpen source · Self-hostable
PostintelligencecontractsLegalTechOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Juro60LegalTechLondon, United KingdomOpen source
Axiom58LegalTechNew York, United States$764.0MOpen source
Knostic54Cybersecurity$14.3MOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Supernova37Developer ToolsSan Francisco, United States$129.2MOpen source
CustomGPT35AI ChatbotTel Aviv, Israel$1.0MOpen source
Qualifire32Generative AIOpen source
- POPostgres MCP10DatabaseSan Francisco, United States
Open source
DocsGPT8Open SourceOpen source · Self-hostable
ZenlawyerLegalTechTel Aviv, IsraelOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
PaperswanAI Search EngineSan Francisco, United StatesOpen source
Tosly.onlineAgentic AIOpen source
CasezLegalTechTel Aviv, IsraelOpen source
Coworker.aiHR TechOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
DeepL82Artificial IntelligenceCologne, Germany$300.0MOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Lovable75No-Code/Low-CodeStockholm, Sweden$880.2MOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
Cognigy (NICE)63Voice AgentDüsseldorf, GermanyOpen source
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
Fiddler Labs, Inc.62MLOpsMountain View, United States$39.0MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
Galileo Technologies, Inc.61AI ObservabilitySan Francisco, United States$45.0MOpen source
Holistic AI61AI GovernanceLondon, United Kingdom$335.0MOpen source
Sendbird61Conversational AISan Mateo, United StatesOpen source
Giskard60Artificial IntelligenceParis, France$2.5MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Agency58Agentic AISan Francisco, United States$20.0MOpen source
- MIMintlify / mcpt57Developer ToolsSan Francisco, United States
Open source
Market Beyond57RetailTechNew York, United States$4.0MOpen source
MANIFEST56LegalNew York, United States$23.0MOpen source
Julius AI55Analytics PlatformSan Francisco, United States$20.5MOpen source
pleias55AI InfrastructureParis, FranceOpen source
giniX54Generative AITel Aviv, IsraelOpen source
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Plane53Project ManagementSan Francisco, United States$4.0MOpen source
Relevance AI53Agentic AITel Aviv, Israel$12.0MOpen source
Orqai51Agentic AIAmsterdam, Netherlands$40.0MOpen source
Fiddler Labs48AI ObservabilityMountain View, United StatesOpen source
Keep47EnterpriseSan Francisco, United States$2.5MOpen source · Self-hostable
Prem47Artificial IntelligenceZurich, Switzerland$100.0MOpen source
Apideck46API PlatformUnknown, UnknownOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| IRIronclad | Legal & Compliance | Open source | San Francisco, United States | — | 67 |
| KIKira Systems | LegalTech | Open source | Toronto, Canada | — | 10 |
| Linum Labs | — | Open source | Johannesburg, South Africa | — | 34 |
| LawGeex | Legal | Open source | Tel Aviv, Israel | $41.8M | 56 |
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 |
| Postintelligencecontracts | LegalTech | Open source | — | — | — |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Juro | LegalTech | Open source | London, United Kingdom | — | 60 |
| Axiom | LegalTech | Open source | New York, United States | $764.0M | 58 |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Supernova | Developer Tools | Open source | San Francisco, United States | $129.2M | 37 |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 35 |
| Qualifire | Generative AI | Open source | — | — | 32 |
| POPostgres MCP | Database | Open source | San Francisco, United States | — | 10 |
| DocsGPT | Open Source | Open source · Self-hostable | — | — | 8 |
| Zenlawyer | LegalTech | Open source | Tel Aviv, Israel | — | — |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — |
| Tosly.online | Agentic AI | Open source | — | — | — |
| Casez | LegalTech | Open source | Tel Aviv, Israel | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 |
| DeepL | Artificial Intelligence | Open source | Cologne, Germany | $300.0M | 82 |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 |
| Lovable | No-Code/Low-Code | Open source | Stockholm, Sweden | $880.2M | 75 |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| Cognigy (NICE) | Voice Agent | Open source | Düsseldorf, Germany | — | 63 |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 |
| Fiddler Labs, Inc. | MLOps | Open source | Mountain View, United States | $39.0M | 62 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 |
| Galileo Technologies, Inc. | AI Observability | Open source | San Francisco, United States | $45.0M | 61 |
| Holistic AI | AI Governance | Open source | London, United Kingdom | $335.0M | 61 |
| Sendbird | Conversational AI | Open source | San Mateo, United States | — | 61 |
| Giskard | Artificial Intelligence | Open source | Paris, France | $2.5M | 60 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 |
| MIMintlify / mcpt | Developer Tools | Open source | San Francisco, United States | — | 57 |
| Market Beyond | RetailTech | Open source | New York, United States | $4.0M | 57 |
| MANIFEST | Legal | Open source | New York, United States | $23.0M | 56 |
| Julius AI | Analytics Platform | Open source | San Francisco, United States | $20.5M | 55 |
| pleias | AI Infrastructure | Open source | Paris, France | — | 55 |
| giniX | Generative AI | Open source | Tel Aviv, Israel | — | 54 |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 |
| Plane | Project Management | Open source | San Francisco, United States | $4.0M | 53 |
| Relevance AI | Agentic AI | Open source | Tel Aviv, Israel | $12.0M | 53 |
| Orqai | Agentic AI | Open source | Amsterdam, Netherlands | $40.0M | 51 |
| Fiddler Labs | AI Observability | Open source | Mountain View, United States | — | 48 |
| Keep | Enterprise | Open source · Self-hostable | San Francisco, United States | $2.5M | 47 |
| Prem | Artificial Intelligence | Open source | Zurich, Switzerland | $100.0M | 47 |
| Apideck | API Platform | Open source | Unknown, Unknown | — | 46 |