Open source focus
Open Source Alternatives to Caselight
60 open source LegalTech options similar to Caselight, 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.
CasezLegalTechTel Aviv, IsraelOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
GPT Researcher13Agentic AIOpen source
ZenlawyerLegalTechTel Aviv, IsraelOpen source
PaperswanAI Search EngineSan Francisco, United StatesOpen source
PostintelligencecontractsLegalTechOpen source
- LoireLegalTechSan Francisco, United States
Open source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Dust65Agentic AIParis, France$15.0MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
Toolbase54Developer ToolsSan Francisco, United StatesOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Recallguru21AI Search EngineOpen source
StartupHub.ai17AI Search EngineTel Aviv, IsraelOpen source
LlamaAi (DefiLlama)10FintechOpen source
DocsGPT8Open SourceOpen source · Self-hostable
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
FastclaudeAI Search EngineOpen source
- ThebabrainAI Search Engine
Open source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
CasecompassLegalTechTel Aviv, IsraelOpen source
Local MindAI Tools & AppsInnsbruck, AustriaOpen source
GhoztAgentic AIOpen source
UszoningAI Search EngineTel Aviv, IsraelOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
BiblelensAI Search EngineOpen source
GoumiFoundation ModelBeaverton, United StatesOpen source
RedbuyE-commerceOpen source
Consensus360AI Search EngineOpen source
KnowqlAI Search EngineOpen source
TheclearpointAgentic AIOpen source
BuildtoexitAI Search EngineSan Francisco, United StatesOpen source
HockitAI Search EngineTel Aviv, IsraelOpen source
Manus AI75Agentic AISingapore, Singapore$150.0MOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
- MOMoonshot AI69Frontier AI LabBeijing, China$3.9B
Open source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
TwelveLabs64Video IntelligenceSan Francisco, United States$68.0MOpen source
Pola.rs63AI Search EngineTel Aviv, Israel$26.0MOpen source
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Trigger Device Inc63AI AgentsLondon, United Kingdom$16.5MOpen source · Self-hostable
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Juro60LegalTechLondon, United KingdomOpen source
Weaviate60Vector DatabaseAmsterdam, NetherlandsOpen source
Axiom58LegalTechNew York, United States$764.0MOpen source
Agency58Agentic AISan Francisco, United States$20.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Casez | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 | |
| GPT Researcher | Agentic AI | Open source | — | — | 13 | |
| Zenlawyer | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Postintelligencecontracts | LegalTech | Open source | — | — | — | |
| LegalTech | Open source | San Francisco, United States | — | — | ||
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 | |
| Toolbase | Developer Tools | Open source | San Francisco, United States | — | 54 | |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 | |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 | |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 | |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 | |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 | |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 | |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 | |
| Recallguru | AI Search Engine | Open source | — | — | 21 | |
| StartupHub.ai | AI Search Engine | Open source | Tel Aviv, Israel | — | 17 | |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 | |
| DocsGPT | Open Source | Open source · Self-hostable | — | — | 8 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| AI Search Engine | Open source | — | — | — | ||
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — | |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Casecompass | LegalTech | Open source | Tel Aviv, Israel | — | — | |
| Local Mind | AI Tools & Apps | Open source | Innsbruck, Austria | — | — | |
| Ghozt | Agentic AI | Open source | — | — | — | |
| Uszoning | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — | |
| Biblelens | AI Search Engine | Open source | — | — | — | |
| Goumi | Foundation Model | Open source | Beaverton, United States | — | — | |
| Redbuy | E-commerce | Open source | — | — | — | |
| Consensus360 | AI Search Engine | Open source | — | — | — | |
| Knowql | AI Search Engine | Open source | — | — | — | |
| Theclearpoint | Agentic AI | Open source | — | — | — | |
| Buildtoexit | AI Search Engine | Open source | San Francisco, United States | — | — | |
| Hockit | AI Search Engine | Open source | Tel Aviv, Israel | — | — | |
| Manus AI | Agentic AI | Open source | Singapore, Singapore | $150.0M | 75 | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| MOMoonshot AI | Frontier AI Lab | Open source | Beijing, China | $3.9B | 69 | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 | |
| TwelveLabs | Video Intelligence | Open source | San Francisco, United States | $68.0M | 64 | |
| Pola.rs | AI Search Engine | Open source | Tel Aviv, Israel | $26.0M | 63 | |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 | |
| Trigger Device Inc | AI Agents | Open source · Self-hostable | London, United Kingdom | $16.5M | 63 | |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 | |
| Juro | LegalTech | Open source | London, United Kingdom | — | 60 | |
| Weaviate | Vector Database | Open source | Amsterdam, Netherlands | — | 60 | |
| Axiom | LegalTech | Open source | New York, United States | $764.0M | 58 | |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 |