Open source focus
.NET is open source
Open Source Alternatives to .NET
60 open source Software Development options similar to .NET, 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.
Node.js26Software DevelopmentOpen source · Self-hostable
Codefresh61EnterpriseBrisbane, Australia$42.0MOpen source · Self-hostable
Appwrite61EnterpriseSan Francisco, United States$37.0MOpen source · Self-hostable
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
ChartDB26Software DevelopmentTel Aviv, IsraelOpen source · Self-hostable
ScyllaDB66DatabasePalo Alto, United States$101.0MOpen source · Self-hostable
DragonflyDB62DatabaseTel Aviv, Israel$21.0MOpen source · Self-hostable
pgEdge, Inc.58DatabaseSan Francisco, United States$24.0MOpen source · Self-hostable
Speedb52EnterpriseTel Aviv, Israel$17.0MOpen source · Self-hostable
SereneDB49DatabaseSan Francisco, United States$3.8MOpen source · Self-hostable
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
Responsive40EnterpriseSan Francisco, United StatesOpen source · Self-hostable
Noobaa34Enterprise$5.0MOpen source · Self-hostable
Quazzar Cloud21Self-HostingOpen source · Self-hostable
Camunda Pte. Limited18Workflow AutomationBerlin, GermanyOpen source · Self-hostable
Camunda Inc.17Process AutomationBerlin, GermanyOpen source · Self-hostable
Camunda Services GmbH17Workflow AutomationBerlin, GermanyOpen source · Self-hostable
Hycos AI15EnterpriseOpen source
vxtwitter.com10Web DevelopmentSan Francisco, United StatesOpen source · Self-hostable
KubeVirt9Cloud ComputingOpen source · Self-hostable
- DemandintelligenceDeveloper ToolsSan Francisco, United States
Open source · Self-hostable
- GetocOpen Source
Open source · Self-hostable
Ubuntu85Operating SystemsLondon, United Kingdom$63.0MOpen source · Self-hostable
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Cursor80Artificial IntelligenceSan Francisco, United States$2.9BOpen source
- GRGrafana Labs80ObservabilityNew York, United States
Open source · Self-hostable
Postman78API DevelopmentSan Francisco, United StatesOpen source
TestMu AI (Formerly LambdaTest)77MLOpsSan Francisco, United States$121Open source
GitHub77Developer ToolsSan Francisco, United States$100.0MOpen source · Self-hostable
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Grafana Cloud74ObservabilityNew York, United States$2.1BOpen source · Self-hostable
Temporal71Workflow AutomationSeattle, United States$134.0MOpen source
- Supabase70DatabaseSan Francisco, United States$933.0M
Open source · Self-hostable
SUSE70Cloud ComputingLuxembourg City, Luxembourg$4.9BOpen source · Self-hostable
Logz.io69EnterpriseTel Aviv, Israel$132.0MOpen source · Self-hostable
Posit68Data Science PlatformBoston, United States$169.9MOpen source · Self-hostable
Starburst67AIBoston, United States$414.0MOpen source · Self-hostable
YugabyteDB67DatabaseSunnyvale, United States$266.0MOpen source · Self-hostable
- PUPulumi66Infrastructure as CodeSeattle, United States$228.5M
Open source · Self-hostable
npm65Developer ToolsOakland, USA$10.6MOpen source · Self-hostable
Gitpod64Developer ToolsTübingen, Germany$28.0MOpen source · Self-hostable
ClearML64AutoMLTel Aviv, Israel$11.0MOpen source · Self-hostable
ABLY63Realtime CommunicationLondon, United Kingdom$88.0MOpen source
Vultr63NeocloudHerndon, United States$662.0MOpen source
Odigos62Enterprise$13.0MOpen source · Self-hostable
Applitools61EnterpriseSan Mateo, United States$41.5MOpen source
Komodor61Software DevelopmentTel Aviv, Israel$67.0MOpen source
Canonical60Open SourceLondon, United Kingdom$348KOpen source · Self-hostable
Mend60Open SourceTel Aviv, Israel$121.5MOpen source · Self-hostable
Steel.dev58Developer ToolsTel Aviv, Israel$17.0MOpen source · Self-hostable
Backstage57Developer ToolsStockholm, Sweden$63.0MOpen source · Self-hostable
Baseten57MLOpsSan Francisco, United States$2.3BOpen source
Salto56DevOpsTel Aviv, Israel$69.0MOpen source
OpenOps55EnterpriseSan Francisco, United States$125KOpen source · Self-hostable
Bluebricks55EnterpriseSan Francisco, United States$4.5MOpen source
Mirantis55Cloud InfrastructureCampbell, United States$255.0MOpen source · Self-hostable
Robusta Dev55DevelopmentTel Aviv, IsraelOpen source · Self-hostable
BreezoMeter54Weather$42.9MOpen source
OpenMeter54MLOpsTel Aviv, Israel$3.0MOpen source · Self-hostable
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Node.js | Software Development | Open source · Self-hostable | — | — | 26 |
| Codefresh | Enterprise | Open source · Self-hostable | Brisbane, Australia | $42.0M | 61 |
| Appwrite | Enterprise | Open source · Self-hostable | San Francisco, United States | $37.0M | 61 |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 |
| ChartDB | Software Development | Open source · Self-hostable | Tel Aviv, Israel | — | 26 |
| ScyllaDB | Database | Open source · Self-hostable | Palo Alto, United States | $101.0M | 66 |
| DragonflyDB | Database | Open source · Self-hostable | Tel Aviv, Israel | $21.0M | 62 |
| pgEdge, Inc. | Database | Open source · Self-hostable | San Francisco, United States | $24.0M | 58 |
| Speedb | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 52 |
| SereneDB | Database | Open source · Self-hostable | San Francisco, United States | $3.8M | 49 |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 |
| Responsive | Enterprise | Open source · Self-hostable | San Francisco, United States | — | 40 |
| Noobaa | Enterprise | Open source · Self-hostable | — | $5.0M | 34 |
| Quazzar Cloud | Self-Hosting | Open source · Self-hostable | — | — | 21 |
| Camunda Pte. Limited | Workflow Automation | Open source · Self-hostable | Berlin, Germany | — | 18 |
| Camunda Inc. | Process Automation | Open source · Self-hostable | Berlin, Germany | — | 17 |
| Camunda Services GmbH | Workflow Automation | Open source · Self-hostable | Berlin, Germany | — | 17 |
| Hycos AI | Enterprise | Open source | — | — | 15 |
| vxtwitter.com | Web Development | Open source · Self-hostable | San Francisco, United States | — | 10 |
| KubeVirt | Cloud Computing | Open source · Self-hostable | — | — | 9 |
| Developer Tools | Open source · Self-hostable | San Francisco, United States | — | — | |
| Open Source | Open source · Self-hostable | — | — | — | |
| Ubuntu | Operating Systems | Open source · Self-hostable | London, United Kingdom | $63.0M | 85 |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 |
| Cursor | Artificial Intelligence | Open source | San Francisco, United States | $2.9B | 80 |
| GRGrafana Labs | Observability | Open source · Self-hostable | New York, United States | — | 80 |
| Postman | API Development | Open source | San Francisco, United States | — | 78 |
| TestMu AI (Formerly LambdaTest) | MLOps | Open source | San Francisco, United States | $121 | 77 |
| GitHub | Developer Tools | Open source · Self-hostable | San Francisco, United States | $100.0M | 77 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 |
| Grafana Cloud | Observability | Open source · Self-hostable | New York, United States | $2.1B | 74 |
| Temporal | Workflow Automation | Open source | Seattle, United States | $134.0M | 71 |
| Database | Open source · Self-hostable | San Francisco, United States | $933.0M | 70 | |
| SUSE | Cloud Computing | Open source · Self-hostable | Luxembourg City, Luxembourg | $4.9B | 70 |
| Logz.io | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $132.0M | 69 |
| Posit | Data Science Platform | Open source · Self-hostable | Boston, United States | $169.9M | 68 |
| Starburst | AI | Open source · Self-hostable | Boston, United States | $414.0M | 67 |
| YugabyteDB | Database | Open source · Self-hostable | Sunnyvale, United States | $266.0M | 67 |
| PUPulumi | Infrastructure as Code | Open source · Self-hostable | Seattle, United States | $228.5M | 66 |
| npm | Developer Tools | Open source · Self-hostable | Oakland, USA | $10.6M | 65 |
| Gitpod | Developer Tools | Open source · Self-hostable | Tübingen, Germany | $28.0M | 64 |
| ClearML | AutoML | Open source · Self-hostable | Tel Aviv, Israel | $11.0M | 64 |
| ABLY | Realtime Communication | Open source | London, United Kingdom | $88.0M | 63 |
| Vultr | Neocloud | Open source | Herndon, United States | $662.0M | 63 |
| Odigos | Enterprise | Open source · Self-hostable | — | $13.0M | 62 |
| Applitools | Enterprise | Open source | San Mateo, United States | $41.5M | 61 |
| Komodor | Software Development | Open source | Tel Aviv, Israel | $67.0M | 61 |
| Canonical | Open Source | Open source · Self-hostable | London, United Kingdom | $348K | 60 |
| Mend | Open Source | Open source · Self-hostable | Tel Aviv, Israel | $121.5M | 60 |
| Steel.dev | Developer Tools | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 58 |
| Backstage | Developer Tools | Open source · Self-hostable | Stockholm, Sweden | $63.0M | 57 |
| Baseten | MLOps | Open source | San Francisco, United States | $2.3B | 57 |
| Salto | DevOps | Open source | Tel Aviv, Israel | $69.0M | 56 |
| OpenOps | Enterprise | Open source · Self-hostable | San Francisco, United States | $125K | 55 |
| Bluebricks | Enterprise | Open source | San Francisco, United States | $4.5M | 55 |
| Mirantis | Cloud Infrastructure | Open source · Self-hostable | Campbell, United States | $255.0M | 55 |
| Robusta Dev | Development | Open source · Self-hostable | Tel Aviv, Israel | — | 55 |
| BreezoMeter | Weather | Open source | — | $42.9M | 54 |
| OpenMeter | MLOps | Open source · Self-hostable | Tel Aviv, Israel | $3.0M | 54 |