Open source focus
MANIFEST is open source
Open Source Alternatives to MANIFEST
60 open source Legal options similar to MANIFEST, 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.
Snyk85AI Coding AssistantBoston, United States$488.5MOpen source · Self-hostable
OWASP37CybersecurityRaleigh, USAOpen source · Self-hostable
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Knostic54Cybersecurity$14.3MOpen source
- Svitch26AI GovernanceSan Francisco, United States
Open source
Vibranium Dome23AI AgentsOpen source · Self-hostable
0sec11CybersecurityTel Aviv, IsraelOpen source · Self-hostable
RegulatediqAI GovernanceOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Zenity66CybersecuritySan Francisco, United States$184.5MOpen source
Holistic AI61AI GovernanceLondon, United Kingdom$335.0MOpen source
Giskard60Artificial IntelligenceParis, France$2.5MOpen source
Mend60Open SourceTel Aviv, Israel$121.5MOpen source · Self-hostable
Agency58Agentic AISan Francisco, United States$20.0MOpen source
Backslash Security57CybersecurityTel Aviv, Israel$27.0MOpen source
JupiterOne57CybersecurityCary, USA$3.0MOpen source
- BRBria56Generative AITel Aviv, Israel$130.5M
Open source
Tinfoil50CybersecuritySan Francisco, United States$500.3MOpen source
Oplane49CybersecurityMalmö, Sweden$4.5MOpen source
Fiddler Labs48AI ObservabilityMountain View, United StatesOpen source
Argon Security47EnterpriseTel Aviv, IsraelOpen source
Astrasafe35AI GovernanceTel Aviv, Israel$1.5MOpen source
Ontic25AI SafetySan Francisco, United States$291.5MOpen source
- Attestely7Cybersecurity
Open source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
Aitrustapp4Trust and SafetyOpen source
LiansAgentic AIOpen source
Google DeepMind83Frontier AI LabLondon, United Kingdom$676.7MOpen source
SpaceXAI76Frontier AI LabPalo Alto, United States$90.0BOpen source
Vanta75CybersecuritySan Francisco, United States$154.0MOpen source
SafeBreach69EnterpriseTel Aviv, Israel$140.5MOpen source
LogicGate Risk Cloud68GRCChicago, United States$269.0MOpen source
Protect AI64CybersecuritySeattle, United States$105.0MOpen source
Workiva62Enterprise SoftwareAmes, United StatesOpen source
Fiddler Labs, Inc.62MLOpsMountain View, United States$39.0MOpen source
Galileo Technologies, Inc.61AI ObservabilitySan Francisco, United States$45.0MOpen source
Seemplicity61EnterpriseTel Aviv, Israel$182.0MOpen source
Mobb55CybersecurityTel Aviv, Israel$5.4MOpen source
Locai Labs50Artificial IntelligenceUnited Kingdom$735KOpen source
Torch Security49CybersecurityLeawood, United StatesOpen source
Arcade48Artificial IntelligenceSan Francisco, USA$60.0MOpen source
Antithesis46CybersecuritySan Francisco, United States$117.5MOpen source
Mayhem Security45CybersecurityBethesda, United StatesOpen source
Microsoft43Operating SystemRedmond, United StatesOpen source
Scribe Security43Supply ChainTel Aviv, IsraelOpen source
Slauth.io43EnterpriseAshburn, United States$1.5MOpen source · Self-hostable
Niyatna AI40Agentic AISan Francisco, United StatesOpen source
Paart40AI GovernanceSan Francisco, United StatesOpen source
TandemTrace35Agentic AIOpen source
- Adamczyk34Agentic AISan Francisco, United States$1.0M
Open source
- MOModal <> AI27InstructionsSan Francisco, United States
Open source
Oncometra17AI-Driven Drug DiscoveryOpen source
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
RSA10CybersecurityBedford, United StatesOpen source
Axonmedical4HealthTechOpen source
- ExploitcheckCybersecurity
Open source
KernelscanCybersecurityAichtal, GermanyOpen source · Self-hostable
TympanumFoundation ModelOpen source
- IronweftAgentic AISan Francisco, United States
Open source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Snyk | AI Coding Assistant | Open source · Self-hostable | Boston, United States | $488.5M | 85 | |
| OWASP | Cybersecurity | Open source · Self-hostable | Raleigh, USA | — | 37 | |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 | |
| Knostic | Cybersecurity | Open source | — | $14.3M | 54 | |
| AI Governance | Open source | San Francisco, United States | — | 26 | ||
| Vibranium Dome | AI Agents | Open source · Self-hostable | — | — | 23 | |
| 0sec | Cybersecurity | Open source · Self-hostable | Tel Aviv, Israel | — | 11 | |
| Regulatediq | AI Governance | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| Zenity | Cybersecurity | Open source | San Francisco, United States | $184.5M | 66 | |
| Holistic AI | AI Governance | Open source | London, United Kingdom | $335.0M | 61 | |
| Giskard | Artificial Intelligence | Open source | Paris, France | $2.5M | 60 | |
| Mend | Open Source | Open source · Self-hostable | Tel Aviv, Israel | $121.5M | 60 | |
| Agency | Agentic AI | Open source | San Francisco, United States | $20.0M | 58 | |
| Backslash Security | Cybersecurity | Open source | Tel Aviv, Israel | $27.0M | 57 | |
| JupiterOne | Cybersecurity | Open source | Cary, USA | $3.0M | 57 | |
| BRBria | Generative AI | Open source | Tel Aviv, Israel | $130.5M | 56 | |
| Tinfoil | Cybersecurity | Open source | San Francisco, United States | $500.3M | 50 | |
| Oplane | Cybersecurity | Open source | Malmö, Sweden | $4.5M | 49 | |
| Fiddler Labs | AI Observability | Open source | Mountain View, United States | — | 48 | |
| Argon Security | Enterprise | Open source | Tel Aviv, Israel | — | 47 | |
| Astrasafe | AI Governance | Open source | Tel Aviv, Israel | $1.5M | 35 | |
| Ontic | AI Safety | Open source | San Francisco, United States | $291.5M | 25 | |
| Cybersecurity | Open source | — | — | 7 | ||
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Aitrustapp | Trust and Safety | Open source | — | — | 4 | |
| Lians | Agentic AI | Open source | — | — | — | |
| Google DeepMind | Frontier AI Lab | Open source | London, United Kingdom | $676.7M | 83 | |
| SpaceXAI | Frontier AI Lab | Open source | Palo Alto, United States | $90.0B | 76 | |
| Vanta | Cybersecurity | Open source | San Francisco, United States | $154.0M | 75 | |
| SafeBreach | Enterprise | Open source | Tel Aviv, Israel | $140.5M | 69 | |
| LogicGate Risk Cloud | GRC | Open source | Chicago, United States | $269.0M | 68 | |
| Protect AI | Cybersecurity | Open source | Seattle, United States | $105.0M | 64 | |
| Workiva | Enterprise Software | Open source | Ames, United States | — | 62 | |
| Fiddler Labs, Inc. | MLOps | Open source | Mountain View, United States | $39.0M | 62 | |
| Galileo Technologies, Inc. | AI Observability | Open source | San Francisco, United States | $45.0M | 61 | |
| Seemplicity | Enterprise | Open source | Tel Aviv, Israel | $182.0M | 61 | |
| Mobb | Cybersecurity | Open source | Tel Aviv, Israel | $5.4M | 55 | |
| Locai Labs | Artificial Intelligence | Open source | United Kingdom | $735K | 50 | |
| Torch Security | Cybersecurity | Open source | Leawood, United States | — | 49 | |
| Arcade | Artificial Intelligence | Open source | San Francisco, USA | $60.0M | 48 | |
| Antithesis | Cybersecurity | Open source | San Francisco, United States | $117.5M | 46 | |
| Mayhem Security | Cybersecurity | Open source | Bethesda, United States | — | 45 | |
| Microsoft | Operating System | Open source | Redmond, United States | — | 43 | |
| Scribe Security | Supply Chain | Open source | Tel Aviv, Israel | — | 43 | |
| Slauth.io | Enterprise | Open source · Self-hostable | Ashburn, United States | $1.5M | 43 | |
| Niyatna AI | Agentic AI | Open source | San Francisco, United States | — | 40 | |
| Paart | AI Governance | Open source | San Francisco, United States | — | 40 | |
| TandemTrace | Agentic AI | Open source | — | — | 35 | |
| Agentic AI | Open source | San Francisco, United States | $1.0M | 34 | ||
| MOModal <> AI | Instructions | Open source | San Francisco, United States | — | 27 | |
| Oncometra | AI-Driven Drug Discovery | Open source | — | — | 17 | |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 | |
| RSA | Cybersecurity | Open source | Bedford, United States | — | 10 | |
| Axonmedical | HealthTech | Open source | — | — | 4 | |
| Cybersecurity | Open source | — | — | — | ||
| Kernelscan | Cybersecurity | Open source · Self-hostable | Aichtal, Germany | — | — | |
| Tympanum | Foundation Model | Open source | — | — | — | |
| Agentic AI | Open source | San Francisco, United States | — | — |