Open Source Alternatives to Poststacks
60 open source Low-Code Development options similar to Poststacks, 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.
Quickbase69Work ManagementWaltham, United States$1.0BOpen source
Vybe42Internal ToolsSan Francisco, United States$2.5MOpen source
Kantu26Workflow AutomationOpen source · Self-hostable
Camunda Inc.17Process AutomationBerlin, GermanyOpen source · Self-hostable
Lovable75No-Code/Low-CodeStockholm, Sweden$1.2BOpen source
Temporal71Workflow AutomationSeattle, United States$134.0MOpen source
Jitterbit70iPaaSOakland, United States$103.0MOpen source
Hightouch70Customer Data PlatformSan Francisco, United States$322.0MOpen source
LogicGate Risk Cloud68GRCChicago, United States$269.0MOpen source
ClearML64AutoMLTel Aviv, Israel$11.0MOpen source · Self-hostable
Domino Data Lab, Inc.63AI GovernanceNew York, United States$100.5MOpen source
Orkes62Artificial IntelligenceSanta Clara, USA$89.3MOpen source
Quali61EnterpriseAustin, United States$86.8MOpen source
BotCity57RPASão Paulo, Brazil$16.5MOpen source
Pipedream56Workflow AutomationSan Francisco, United States$55.0MOpen source
Raycast55ProductivityLondon, United Kingdom$17.7MOpen source
OpenOps55EnterpriseSan Francisco, United States$125KOpen source · Self-hostable
Pythagora54AI Development PlatformSan Francisco, United States$4.0MOpen source
OctoParse54Data ExtractionWalnut, United States$15.4MOpen source
Interai54Enterprise$13.3MOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Svix53EnterpriseSan Francisco, United States$2.6MOpen source
Relevance AI53Agentic AITel Aviv, Israel$12.0MOpen source
Nintex51Automation & RPABellevue, United States$29.0MOpen source
Hex Technologies50Data PlatformSan Francisco, United States$217.5MOpen source
Inngest Inc.48Developer ToolsSan Francisco, United States$5.0MOpen source
cal.com47Scheduling SoftwareBerlin, GermanyOpen source · Self-hostable
SageOx47Artificial IntelligenceSeattle, USA$15.0MOpen source
Kryon47EnterpriseBellevue, United States$68.0MOpen source
Timefold46Artificial IntelligenceAmsterdam, Netherlands$13.0MOpen source
Stably AI45Agentic AITel Aviv, IsraelOpen source
Bitloops45Developer ToolsAthens, Greece$1.5MOpen source
Base4444No CodeTel Aviv, IsraelOpen source
Amplication44EnterpriseTel Aviv, IsraelOpen source · Self-hostable
- ATAttio41CRMLondon, United Kingdom$93.5M
Open source
- Co Build40AI Collaboration Tools$8.5M
Open source
Joulix AI Technologies35AI Tools & AppsSan Francisco, Israel$2.3MOpen source
Magick AI28Agentic AIOpen source
Swagger24API DevelopmentSomerville, United StatesOpen source · Self-hostable
Quazzar Cloud21Self-HostingOpen source · Self-hostable
Apache Airflow19MLOpsOpen source · Self-hostable
Upsonic19Developer ToolsLondon, United KingdomOpen source · Self-hostable
Camunda Pte. Limited18Workflow AutomationBerlin, GermanyOpen source · Self-hostable
Camunda Services GmbH17Workflow AutomationBerlin, GermanyOpen source · Self-hostable
Agent Claws17Agentic AISan Francisco, United StatesOpen source
LLMStack15Agentic AIOpen source · Self-hostable
UI.Vision RPA15RPAOpen source · Self-hostable
Hycos AI15EnterpriseOpen source
Maxellab14Workflow AutomationOpen source
Integuru13API PlatformOpen source
MCP.so10Developer ToolsOpen source · Self-hostable
.NET8Software DevelopmentRedmond, USAOpen source · Self-hostable
kuafuai8Agentic AIBeijing, ChinaOpen source
Bayouops4Cloud InfrastructureHouston, United StatesOpen source
Boomi2Integration PlatformChesterbrook, United StatesOpen source
SapmindsEnterprise SoftwareLondon, United KingdomOpen source
- SheafData PlatformMaidenhead, England
Open source
AidlesAgentic AITel Aviv, IsraelOpen source
Versa DigitalCustom Software DevelopmentExeter, EnglandOpen source
PugiProduct Development AutomationOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Work Management | Open source | Waltham, United States | $1.0B | 69 | |
| Internal Tools | Open source | San Francisco, United States | $2.5M | 42 | |
| Workflow Automation | Open source · Self-hostable | — | — | 26 | |
| Process Automation | Open source · Self-hostable | Berlin, Germany | — | 17 | |
| No-Code/Low-Code | Open source | Stockholm, Sweden | $1.2B | 75 | |
| Workflow Automation | Open source | Seattle, United States | $134.0M | 71 | |
| iPaaS | Open source | Oakland, United States | $103.0M | 70 | |
| Customer Data Platform | Open source | San Francisco, United States | $322.0M | 70 | |
| GRC | Open source | Chicago, United States | $269.0M | 68 | |
| AutoML | Open source · Self-hostable | Tel Aviv, Israel | $11.0M | 64 | |
| AI Governance | Open source | New York, United States | $100.5M | 63 | |
| Artificial Intelligence | Open source | Santa Clara, USA | $89.3M | 62 | |
| Enterprise | Open source | Austin, United States | $86.8M | 61 | |
| RPA | Open source | São Paulo, Brazil | $16.5M | 57 | |
| Workflow Automation | Open source | San Francisco, United States | $55.0M | 56 | |
| Productivity | Open source | London, United Kingdom | $17.7M | 55 | |
| Enterprise | Open source · Self-hostable | San Francisco, United States | $125K | 55 | |
| AI Development Platform | Open source | San Francisco, United States | $4.0M | 54 | |
| Data Extraction | Open source | Walnut, United States | $15.4M | 54 | |
| Enterprise | Open source | — | $13.3M | 54 | |
| Artificial Intelligence | Open source · Self-hostable | — | — | 54 | |
| Enterprise | Open source | San Francisco, United States | $2.6M | 53 | |
| Agentic AI | Open source | Tel Aviv, Israel | $12.0M | 53 | |
| Automation & RPA | Open source | Bellevue, United States | $29.0M | 51 | |
| Data Platform | Open source | San Francisco, United States | $217.5M | 50 | |
| Developer Tools | Open source | San Francisco, United States | $5.0M | 48 | |
| Scheduling Software | Open source · Self-hostable | Berlin, Germany | — | 47 | |
| Artificial Intelligence | Open source | Seattle, USA | $15.0M | 47 | |
| Enterprise | Open source | Bellevue, United States | $68.0M | 47 | |
| Artificial Intelligence | Open source | Amsterdam, Netherlands | $13.0M | 46 | |
| Agentic AI | Open source | Tel Aviv, Israel | — | 45 | |
| Developer Tools | Open source | Athens, Greece | $1.5M | 45 | |
| No Code | Open source | Tel Aviv, Israel | — | 44 | |
| Enterprise | Open source · Self-hostable | Tel Aviv, Israel | — | 44 | |
| ATAttio | CRM | Open source | London, United Kingdom | $93.5M | 41 |
| AI Collaboration Tools | Open source | — | $8.5M | 40 | |
| AI Tools & Apps | Open source | San Francisco, Israel | $2.3M | 35 | |
| Agentic AI | Open source | — | — | 28 | |
| API Development | Open source · Self-hostable | Somerville, United States | — | 24 | |
| Self-Hosting | Open source · Self-hostable | — | — | 21 | |
| MLOps | Open source · Self-hostable | — | — | 19 | |
| Developer Tools | Open source · Self-hostable | London, United Kingdom | — | 19 | |
| Workflow Automation | Open source · Self-hostable | Berlin, Germany | — | 18 | |
| Workflow Automation | Open source · Self-hostable | Berlin, Germany | — | 17 | |
| Agentic AI | Open source | San Francisco, United States | — | 17 | |
| Agentic AI | Open source · Self-hostable | — | — | 15 | |
| RPA | Open source · Self-hostable | — | — | 15 | |
| Enterprise | Open source | — | — | 15 | |
| Workflow Automation | Open source | — | — | 14 | |
| API Platform | Open source | — | — | 13 | |
| Developer Tools | Open source · Self-hostable | — | — | 10 | |
| Software Development | Open source · Self-hostable | Redmond, USA | — | 8 | |
| Agentic AI | Open source | Beijing, China | — | 8 | |
| Cloud Infrastructure | Open source | Houston, United States | — | 4 | |
| Integration Platform | Open source | Chesterbrook, United States | — | 2 | |
| Enterprise Software | Open source | London, United Kingdom | — | — | |
| Data Platform | Open source | Maidenhead, England | — | — | |
| Agentic AI | Open source | Tel Aviv, Israel | — | — | |
| Custom Software Development | Open source | Exeter, England | — | — | |
| Product Development Automation | Open source | — | — | — |