Open source focus

Open Source Alternatives to Accordance

16 open source Tax options similar to Accordance, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

View all alternatives to Accordance →

Upsonic19
Developer ToolsLondon, United Kingdom
Open-source Python framework for building autonomous AI agents and agentic workflows, purpose-built for FinTech operations.
Open source · Self-hostable
Kestra49
Data OrchestrationParis, France$36.0M
An open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.
Open source · Self-hostable
PromptQL45
Artificial IntelligenceSan Francisco, United States
An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
SmythOS45
Agentic AISan Francisco, United States
Open-source AI operating system for launching and scaling specialized AI agent networks.
Open source · Self-hostable
Databricks82
Data AnalyticsSan Francisco, United States$36.7B
A unified data analytics and AI platform built on the lakehouse architecture.
Open source · Self-hostable
Langflow32
Agentic AILisbon, Portugal
Low-code platform for building, iterating, and deploying AI applications, especially RAG and multi-agent systems.
Open source · Self-hostable
Faremeter22
Fintech
Open-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.
Open source · Self-hostable
Outshift19
Agentic AI
Cisco's internal incubation engine for emerging technologies like agentic AI and quantum networking.
Open source · Self-hostable
Dolibarr18
Open Source
Open-source ERP and CRM web suite for businesses of all sizes.
Open source · Self-hostable
AG
Agent Pilot7
Agentic AI
An open-source platform for creating, managing, and interacting with AI workflows and agents.
Open source · Self-hostable
Fractask7
Open Source
Open-source task tree for humans and AI, built around the Fractask method.
Open source · Self-hostable
Twill37
Agentic AISan Francisco, United States
An AI software engineer that connects your repositories and infrastructure to autonomously complete development tasks, improving with every run.
Open source · Self-hostable
CAMEL-AI.org27
Agentic AI
Open-source community discovering scaling laws of intelligent agents for data generation, world simulation, and task automation.
Open source · Self-hostable
AG
Agent4Rec20
Agentic AI
Simulates 1,000 LLM-powered agents for diverse movie recommendation preferences.
Open source
Idoris8
Agentic AI
An open-source, AI-powered brain for organizations, offering a workbench for builders, tailored solutions, and an agent legion.
Open source
Cavi Ai7
Agentic AI
Open-source infrastructure, developer tools, and research for agent runtimes.
Open source

Company	Sector	License	HQ	Funding	Score
UpsonicOpen-source Python framework for building autonomous AI agents and agentic workflows, purpose-built for FinTech operations.	Developer Tools	Open source · Self-hostable	London, United Kingdom	—	19
KestraAn open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.	Data Orchestration	Open source · Self-hostable	Paris, France	$36.0M	49
PromptQLAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.	Artificial Intelligence	Open source · Self-hostable	San Francisco, United States	—	45
SmythOSOpen-source AI operating system for launching and scaling specialized AI agent networks.	Agentic AI	Open source · Self-hostable	San Francisco, United States	—	45
DatabricksA unified data analytics and AI platform built on the lakehouse architecture.	Data Analytics	Open source · Self-hostable	San Francisco, United States	$36.7B	82
LangflowLow-code platform for building, iterating, and deploying AI applications, especially RAG and multi-agent systems.	Agentic AI	Open source · Self-hostable	Lisbon, Portugal	—	32
FaremeterOpen-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.	Fintech	Open source · Self-hostable	—	—	22
OutshiftCisco's internal incubation engine for emerging technologies like agentic AI and quantum networking.	Agentic AI	Open source · Self-hostable	—	—	19
DolibarrOpen-source ERP and CRM web suite for businesses of all sizes.	Open Source	Open source · Self-hostable	—	—	18
AGAgent PilotAn open-source platform for creating, managing, and interacting with AI workflows and agents.	Agentic AI	Open source · Self-hostable	—	—	7
FractaskOpen-source task tree for humans and AI, built around the Fractask method.	Open Source	Open source · Self-hostable	—	—	7
TwillAn AI software engineer that connects your repositories and infrastructure to autonomously complete development tasks, improving with every run.	Agentic AI	Open source · Self-hostable	San Francisco, United States	—	37
CAMEL-AI.orgOpen-source community discovering scaling laws of intelligent agents for data generation, world simulation, and task automation.	Agentic AI	Open source · Self-hostable	—	—	27
AGAgent4RecSimulates 1,000 LLM-powered agents for diverse movie recommendation preferences.	Agentic AI	Open source	—	—	20
IdorisAn open-source, AI-powered brain for organizations, offering a workbench for builders, tailored solutions, and an agent legion.	Agentic AI	Open source	—	—	8
Cavi AiOpen-source infrastructure, developer tools, and research for agent runtimes.	Agentic AI	Open source	—	—	7