Open source focus
Open Source Alternatives to Oyster HR
60 open source HR Tech options similar to Oyster HR, 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.
Velocity Global21Denver, USAOpen source
WorkMotion47HR TechBerlin, Germany$3.0MOpen source
Harri58HR TechNew York, United States$80.0MOpen source
- Karat Lab63Talent Acquisitionנתניה, Israel
Open source
Lever61HR TechSan Francisco, United States$82.8MOpen source
Finch59FintechSan Francisco, United StatesOpen source
daily.dev Recruiter42Recruitment TechTel Aviv, IsraelOpen source
- RYRye39Talent ManagementSan Francisco, United States$16.7M
Open source
Tapavan29HR TechLondon, United KingdomOpen source
LatHire21Talent MarketplaceOpen source
IntelligentstaffingsystemsHR TechLondon, United KingdomOpen source
- OverqualifiedAI Tool
Open source
Vanta75CybersecuritySan Francisco, United States$154.0MOpen source
ShiftMed74HealthTechRockville, United States$292.0MOpen source
PandaDoc70Document Management & eSignaturePhiladelphia, United StatesOpen source
Talon Cyber Security69EnterpriseNew York, United States$126.0MOpen source
LogicGate Risk Cloud68GRCChicago, United States$269.0MOpen source
Zenity66CybersecuritySan Francisco, United States$59.5MOpen source
M-Files Content Collaboration63Enterprise SoftwarePlano, United States$201.0MOpen source
Clair63FintechNew York, United States$67.7MOpen source
GreytHR62HR TechBangalore, India$5.0MOpen source
Alloy62FintechSan Francisco, United States$207.0MOpen source
Workiva62Enterprise SoftwareAmes, United StatesOpen source
Holistic AI61AI GovernanceLondon, United Kingdom$335.0MOpen source
Probo59SMB SoftwareTel Aviv, Israel$2.5MOpen source · Self-hostable
Altana58AINew York, United States$200.0MOpen source
Axiom58LegalTechNew York, United States$764.0MOpen source
Skyflow58Data PrivacyPalo Alto, United States$100.0MOpen source
MANIFEST56LegalNew York, United States$23.0MOpen source
Bluebricks55EnterpriseSan Francisco, United States$4.5MOpen source
Decentriq55CybersecurityZurich, Switzerland$23.8MOpen source
Officevibe52HR TechMontreal, Canada$32.0MOpen source
TaTiO52EducationTel Aviv, Israel$5.3MOpen source
CipherOwl52FintechSan Francisco, United States$15.0MOpen source
Flex51HR TechSan Francisco, United States$85.0MOpen source
InHerSight48Career DevelopmentRaleigh, United States$4.1MOpen source
Bluprynt47FintechNew York, United States$6.0MOpen source
VAYA46EnterpriseSan Francisco, United StatesOpen source
Frenn44EnterpriseOpen source
T-REX44FintechNew York, United States$52.0MOpen source
RTC36TransportationOmaha, United States$8.8MOpen source
Revyve35HR TechTel Aviv, Israel$27.3MOpen source
Cma Intelligence34FintechLondon, United Kingdom$1.0MOpen source
- Tocsin Data31Data GovernanceSan Francisco, United States
Open source
- MOModal <> AI27InstructionsSan Francisco, United States
Open source
- Svitch26AI GovernanceSan Francisco, United States
Open source
Myfuturecoach17Career CoachingOpen source
Cyberscope16CybersecurityTel Aviv, IsraelOpen source
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
Treza Labs10Privacy InfrastructureSan Francisco, United StatesOpen source
- KIKira Systems10LegalTechToronto, Canada
Open source
PayrollHero1HR TechMakati, PhilippinesOpen source
- ERERPNext0Enterprise SoftwareBangalore, India
Open source · Self-hostable
AlwayshiredJob Search PlatformOpen source
IntervyouAI AgentOpen source
CareerroiHR TechOpen source
Coworker.aiHR TechOpen source
EnneagramaiAgentic AIOpen source
RecruitmailHR TechOpen source
- CatharaLegalTech
Open source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Velocity Global | — | Open source | Denver, USA | — | 21 |
| WorkMotion | HR Tech | Open source | Berlin, Germany | $3.0M | 47 |
| Harri | HR Tech | Open source | New York, United States | $80.0M | 58 |
| Talent Acquisition | Open source | נתניה, Israel | — | 63 | |
| Lever | HR Tech | Open source | San Francisco, United States | $82.8M | 61 |
| Finch | Fintech | Open source | San Francisco, United States | — | 59 |
| daily.dev Recruiter | Recruitment Tech | Open source | Tel Aviv, Israel | — | 42 |
| RYRye | Talent Management | Open source | San Francisco, United States | $16.7M | 39 |
| Tapavan | HR Tech | Open source | London, United Kingdom | — | 29 |
| LatHire | Talent Marketplace | Open source | — | — | 21 |
| Intelligentstaffingsystems | HR Tech | Open source | London, United Kingdom | — | — |
| AI Tool | Open source | — | — | — | |
| Vanta | Cybersecurity | Open source | San Francisco, United States | $154.0M | 75 |
| ShiftMed | HealthTech | Open source | Rockville, United States | $292.0M | 74 |
| PandaDoc | Document Management & eSignature | Open source | Philadelphia, United States | — | 70 |
| Talon Cyber Security | Enterprise | Open source | New York, United States | $126.0M | 69 |
| LogicGate Risk Cloud | GRC | Open source | Chicago, United States | $269.0M | 68 |
| Zenity | Cybersecurity | Open source | San Francisco, United States | $59.5M | 66 |
| M-Files Content Collaboration | Enterprise Software | Open source | Plano, United States | $201.0M | 63 |
| Clair | Fintech | Open source | New York, United States | $67.7M | 63 |
| GreytHR | HR Tech | Open source | Bangalore, India | $5.0M | 62 |
| Alloy | Fintech | Open source | San Francisco, United States | $207.0M | 62 |
| Workiva | Enterprise Software | Open source | Ames, United States | — | 62 |
| Holistic AI | AI Governance | Open source | London, United Kingdom | $335.0M | 61 |
| Probo | SMB Software | Open source · Self-hostable | Tel Aviv, Israel | $2.5M | 59 |
| Altana | AI | Open source | New York, United States | $200.0M | 58 |
| Axiom | LegalTech | Open source | New York, United States | $764.0M | 58 |
| Skyflow | Data Privacy | Open source | Palo Alto, United States | $100.0M | 58 |
| MANIFEST | Legal | Open source | New York, United States | $23.0M | 56 |
| Bluebricks | Enterprise | Open source | San Francisco, United States | $4.5M | 55 |
| Decentriq | Cybersecurity | Open source | Zurich, Switzerland | $23.8M | 55 |
| Officevibe | HR Tech | Open source | Montreal, Canada | $32.0M | 52 |
| TaTiO | Education | Open source | Tel Aviv, Israel | $5.3M | 52 |
| CipherOwl | Fintech | Open source | San Francisco, United States | $15.0M | 52 |
| Flex | HR Tech | Open source | San Francisco, United States | $85.0M | 51 |
| InHerSight | Career Development | Open source | Raleigh, United States | $4.1M | 48 |
| Bluprynt | Fintech | Open source | New York, United States | $6.0M | 47 |
| VAYA | Enterprise | Open source | San Francisco, United States | — | 46 |
| Frenn | Enterprise | Open source | — | — | 44 |
| T-REX | Fintech | Open source | New York, United States | $52.0M | 44 |
| RTC | Transportation | Open source | Omaha, United States | $8.8M | 36 |
| Revyve | HR Tech | Open source | Tel Aviv, Israel | $27.3M | 35 |
| Cma Intelligence | Fintech | Open source | London, United Kingdom | $1.0M | 34 |
| Data Governance | Open source | San Francisco, United States | — | 31 | |
| MOModal <> AI | Instructions | Open source | San Francisco, United States | — | 27 |
| AI Governance | Open source | San Francisco, United States | — | 26 | |
| Myfuturecoach | Career Coaching | Open source | — | — | 17 |
| Cyberscope | Cybersecurity | Open source | Tel Aviv, Israel | — | 16 |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 |
| Treza Labs | Privacy Infrastructure | Open source | San Francisco, United States | — | 10 |
| KIKira Systems | LegalTech | Open source | Toronto, Canada | — | 10 |
| PayrollHero | HR Tech | Open source | Makati, Philippines | — | 1 |
| ERERPNext | Enterprise Software | Open source · Self-hostable | Bangalore, India | — | 0 |
| Alwayshired | Job Search Platform | Open source | — | — | — |
| Intervyou | AI Agent | Open source | — | — | — |
| Careerroi | HR Tech | Open source | — | — | — |
| Coworker.ai | HR Tech | Open source | — | — | — |
| Enneagramai | Agentic AI | Open source | — | — | — |
| Recruitmail | HR Tech | Open source | — | — | — |
| LegalTech | Open source | — | — | — |