Open source focus
Open Source Alternatives to Knowstash
60 open source Knowledge Management options similar to Knowstash, 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.
Raindrop40AI Search EngineMoscow, Russia$32.8MOpen source
42research4AI Search EngineTel Aviv, IsraelOpen source
SecondarybrainAI Search EngineSan Francisco, United StatesOpen source
Open and AsyncAgentic AISan Francisco, United StatesOpen source
VektorsearchpartnersAI Search EngineTel Aviv, IsraelOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Vectara60Agentic AIPalo Alto, United States$40.0MOpen source
Isacus46LegalTechTel Aviv, Israel$700KOpen source
Haystack42AI Search EngineSan Francisco, United States$10.0MOpen source
Supernova37Developer ToolsSan Francisco, United States$129.2MOpen source
Answers36AI Search EngineSan Francisco, United States$1.5BOpen source
CustomGPT35AI ChatbotTel Aviv, Israel$1.0MOpen source
Andraste32Agentic AISan Francisco, United StatesOpen source
Briefbridge23AI Search EngineTel Aviv, Israel$1.5MOpen source
Recallguru21AI Search EngineOpen source
GPT Researcher13Agentic AIOpen source
Langchain-Chatchat11Open SourceOpen source · Self-hostable
LlamaAi (DefiLlama)10FintechOpen source
- PRPrivateGPT5AI Search Engine
Open source · Self-hostable
TinyFish3Artificial IntelligenceSan Francisco, United StatesOpen source
Denser AIAI ChatbotTel Aviv, IsraelOpen source
RawqConversational AITel Aviv, IsraelOpen source
AskjoynaAgentic AISan Francisco, United StatesOpen source
DataforeveryoneAI Search EngineSan Francisco, United StatesOpen source
TripvaletTravel TechTel Aviv, IsraelOpen source
PostintelligencecontractsLegalTechOpen source
KaliaiFoundation ModelSan Francisco, United StatesOpen source
- ThebabrainAI Search Engine
Open source
ZenlawyerLegalTechTel Aviv, IsraelOpen source
PaperswanAI Search EngineSan Francisco, United StatesOpen source
StudyboltEdTechTel Aviv, IsraelOpen source
DeepL82Artificial IntelligenceCologne, Germany$300.0MOpen source
Arena71Artificial IntelligenceBerkeley, USA$250.0MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
z.ai65Foundation ModelSan Francisco, USA$1.3BOpen source
Dust65Agentic AIParis, France$15.0MOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Market Beyond57RetailTechNew York, United States$4.0MOpen source
Tavily57Generative AITel Aviv, Israel$5.0MOpen source
- MIMintlify / mcpt57Developer ToolsSan Francisco, United States
Open source
Julius AI55Analytics PlatformSan Francisco, United States$20.5MOpen source
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
M Magical54Artificial IntelligenceSan Francisco, United StatesOpen source
Deepjudge Ai54LegalTechTel Aviv, Israel$53.4MOpen source
Plane53Project ManagementSan Francisco, United States$4.0MOpen source
Chalk.ai48LegalTechSan Francisco, United StatesOpen source
Keep47EnterpriseSan Francisco, United States$2.5MOpen source · Self-hostable
Recall AI46Personal AISan Francisco, United States$10.3MOpen source
Seek AI46AI Coding AssistantTel Aviv, IsraelOpen source
Apideck46API PlatformUnknown, UnknownOpen source
Taskade46SpaceTechNew York, United States$1.0MOpen source
GitHits44Developer ToolsHelsinki, Finland$1.5MOpen source · Self-hostable
Adot43E-commerceSan Francisco, United StatesOpen source
- Why-Health42Productivity
Open source
GrackerAI33Agentic SEOTel Aviv, IsraelOpen source
Qualifire32Generative AIOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Raindrop | AI Search Engine | Open source | Moscow, Russia | $32.8M | 40 |
| 42research | AI Search Engine | Open source | Tel Aviv, Israel | — | 4 |
| Secondarybrain | AI Search Engine | Open source | San Francisco, United States | — | — |
| Open and Async | Agentic AI | Open source | San Francisco, United States | — | — |
| Vektorsearchpartners | AI Search Engine | Open source | Tel Aviv, Israel | — | — |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 |
| Vectara | Agentic AI | Open source | Palo Alto, United States | $40.0M | 60 |
| Isacus | LegalTech | Open source | Tel Aviv, Israel | $700K | 46 |
| Haystack | AI Search Engine | Open source | San Francisco, United States | $10.0M | 42 |
| Supernova | Developer Tools | Open source | San Francisco, United States | $129.2M | 37 |
| Answers | AI Search Engine | Open source | San Francisco, United States | $1.5B | 36 |
| CustomGPT | AI Chatbot | Open source | Tel Aviv, Israel | $1.0M | 35 |
| Andraste | Agentic AI | Open source | San Francisco, United States | — | 32 |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 23 |
| Recallguru | AI Search Engine | Open source | — | — | 21 |
| GPT Researcher | Agentic AI | Open source | — | — | 13 |
| Langchain-Chatchat | Open Source | Open source · Self-hostable | — | — | 11 |
| LlamaAi (DefiLlama) | Fintech | Open source | — | — | 10 |
| PRPrivateGPT | AI Search Engine | Open source · Self-hostable | — | — | 5 |
| TinyFish | Artificial Intelligence | Open source | San Francisco, United States | — | 3 |
| Denser AI | AI Chatbot | Open source | Tel Aviv, Israel | — | — |
| Rawq | Conversational AI | Open source | Tel Aviv, Israel | — | — |
| Askjoyna | Agentic AI | Open source | San Francisco, United States | — | — |
| Dataforeveryone | AI Search Engine | Open source | San Francisco, United States | — | — |
| Tripvalet | Travel Tech | Open source | Tel Aviv, Israel | — | — |
| Postintelligencecontracts | LegalTech | Open source | — | — | — |
| Kaliai | Foundation Model | Open source | San Francisco, United States | — | — |
| AI Search Engine | Open source | — | — | — | |
| Zenlawyer | LegalTech | Open source | Tel Aviv, Israel | — | — |
| Paperswan | AI Search Engine | Open source | San Francisco, United States | — | — |
| Studybolt | EdTech | Open source | Tel Aviv, Israel | — | — |
| DeepL | Artificial Intelligence | Open source | Cologne, Germany | $300.0M | 82 |
| Arena | Artificial Intelligence | Open source | Berkeley, USA | $250.0M | 71 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| z.ai | Foundation Model | Open source | San Francisco, USA | $1.3B | 65 |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 |
| Market Beyond | RetailTech | Open source | New York, United States | $4.0M | 57 |
| Tavily | Generative AI | Open source | Tel Aviv, Israel | $5.0M | 57 |
| MIMintlify / mcpt | Developer Tools | Open source | San Francisco, United States | — | 57 |
| Julius AI | Analytics Platform | Open source | San Francisco, United States | $20.5M | 55 |
| 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 |
| M Magical | Artificial Intelligence | Open source | San Francisco, United States | — | 54 |
| Deepjudge Ai | LegalTech | Open source | Tel Aviv, Israel | $53.4M | 54 |
| Plane | Project Management | Open source | San Francisco, United States | $4.0M | 53 |
| Chalk.ai | LegalTech | Open source | San Francisco, United States | — | 48 |
| Keep | Enterprise | Open source · Self-hostable | San Francisco, United States | $2.5M | 47 |
| Recall AI | Personal AI | Open source | San Francisco, United States | $10.3M | 46 |
| Seek AI | AI Coding Assistant | Open source | Tel Aviv, Israel | — | 46 |
| Apideck | API Platform | Open source | Unknown, Unknown | — | 46 |
| Taskade | SpaceTech | Open source | New York, United States | $1.0M | 46 |
| GitHits | Developer Tools | Open source · Self-hostable | Helsinki, Finland | $1.5M | 44 |
| Adot | E-commerce | Open source | San Francisco, United States | — | 43 |
| Productivity | Open source | — | — | 42 | |
| GrackerAI | Agentic SEO | Open source | Tel Aviv, Israel | — | 33 |
| Qualifire | Generative AI | Open source | — | — | 32 |