Open Source Alternatives to cal.com
58 open source Scheduling Software options similar to cal.com, 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.
Apache AirflowNot ratedOpen-source platform for programmatically authoring, scheduling, and monitoring data pipelines.
Open source · Self-hostable
KiloClawNot ratedA managed, private, and production-grade environment for OpenClaw, offering access to over 500 AI models and essential tools.
Open source · Self-hostable
AmplicationNot ratedOpen-source Node.js backend development platform for accelerating application development.
Open source · Self-hostable
SwaggerNot ratedA suite of open-source and professional tools for API design, development, documentation, and testing.
Open source · Self-hostable
KantuNot ratedOpen-source browser extension and RPA software for automating web and desktop workflows.
Open source · Self-hostable
Camunda Pte. LimitedNot ratedCamunda provides an open-source process automation platform for orchestrating human and system workflows.
Open source · Self-hostable
MCP.soNot ratedA community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.
Open source · Self-hostable
MastraNot ratedAn open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.
Open source · Self-hostable
YugabyteDBNot ratedDistributed SQL database for cloud-native applications, offering high availability and horizontal scalability.
Open source · Self-hostable
ClearMLNot ratedOpen-source, end-to-end MLOps platform for enterprise AI development and deployment.
Open source · Self-hostable
Trigger Device IncNot ratedAn open-source platform for building and deploying AI agents and workflows.
Open source · Self-hostable
AppwriteNot ratedOpen-source backend-as-a-service platform for building scalable applications.
Open source · Self-hostable
Steel.devNot ratedCloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence.
Open source · Self-hostable
ProbablNot ratedTrack experiments, validate models, and collaborate with confidence using Skore, the methodology layer for AI coding tools.
Open source
DVCNot ratedOpen-source platform for ML experiment tracking and data versioning.
Open source · Self-hostable
Comfy OrgNot ratedComfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.
Open source
Auto-GPTNot ratedOpen-source autonomous AI agent platform that automates complex digital workflows.
Open source · Self-hostable
WireMockNot ratedIndustry-standard API simulation and mocking platform for reliable software development and testing.
Open source · Self-hostable
VocodeNot ratedOpen-source library for building hyper-realistic voice agents and conversational AI applications.
Open source · Self-hostable
RasaNot ratedOpen-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
KestraNot ratedAn open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.
Open source · Self-hostable
All-Hands AINot ratedAn open-source platform for building and running AI coding agents that automate software development tasks.
Open source · Self-hostable
ORYNot ratedOpen-source identity and authorization services for applications, offering composable and scalable IAM solutions.
Open source · Self-hostable
Bubble LabNot ratedOpen-source, Typescript-native agentic workflow builder for natural language to code generation.
Open source · Self-hostable
SmythOSNot ratedOpen-source AI operating system for launching and scaling specialized AI agent networks.
Open source · Self-hostable
PromptQLNot ratedAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
Slauth.ioNot ratedArk Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.
Open source · Self-hostable
NangoNot ratedNango is an open-source platform for product integrations that provides a unified API for connecting to over 500 services and supports tool-calling for AI agents.
Open source · Self-hostable
ResponsiveNot ratedPlatform for developers building stateful reactive applications on the modern cloud with object store native databases.
Open source · Self-hostable
OpenClawNot ratedOpen-source AI agent framework for automating tasks across messaging platforms and software systems.
Open source · Self-hostable
LangflowNot ratedLow-code platform for building, iterating, and deploying AI applications, especially RAG and multi-agent systems.
Open source · Self-hostable
Node.jsNot ratedAn open-source, cross-platform JavaScript runtime environment.
Open source · Self-hostable
ParlantNot ratedParlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.
Open source · Self-hostable
MLflowNot ratedOpen-source platform for managing the ML lifecycle, from experimentation to deployment.
Open source · Self-hostable
- ProcfuncNot rated
A service written as a plain Go function, supervised by lesiw.io/proc for reliability and distribution.
Open source
Camunda Services GmbHNot ratedCompany
Open source · Self-hostable
UpsonicNot ratedOpen-source Python framework for building autonomous AI agents and agentic workflows, purpose-built for FinTech operations.
Open source · Self-hostable
Camunda Inc.Not ratedCompany
Open source · Self-hostable
- BABabyAGINot rated
Experimental open-source framework for building self-building autonomous agents with a novel function framework.
Open source · Self-hostable
API PlatformNot ratedOpen-source framework for building and documenting APIs with a focus on developer experience.
Open source · Self-hostable
LLMStackNot ratedOpen-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications.
Open source · Self-hostable
UI.Vision RPANot ratedFree, open-source RPA software for browser and desktop automation using computer vision and AI.
Open source · Self-hostable
MaigeNot ratedOpen-source infrastructure for automating natural language workflows directly on your codebase.
Open source · Self-hostable
- HUHumanSignalNot rated
Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.
Open source · Self-hostable
- AGAgent PilotNot rated
An open-source platform for creating, managing, and interacting with AI workflows and agents.
Open source · Self-hostable
- GEGeniANot rated
Open-source AI platform engineering team member for production environments, automating tasks and learning tools.
Open source · Self-hostable
Together AINot ratedTogether AI offers an AI-native cloud platform providing high-performance inference APIs, GPU clusters, and fine-tuning capabilities for open-source AI models.
Open source · Self-hostable
QdrantNot ratedHigh-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.
Open source · Self-hostable
- SupabaseNot rated
Open source Firebase alternative with a PostgreSQL backend and real-time capabilities.
Open source · Self-hostable
PositNot ratedOpen-source data science platform for enterprise teams, enabling collaboration and reproducible results.
Open source · Self-hostable
ScyllaDBNot ratedScyllaDB is a high-performance, low-latency NoSQL database for data-intensive applications, designed to scale with modern infrastructure.
Open source · Self-hostable
FireboltNot ratedCloud data warehouse for building next-gen analytics experiences with sub-second performance, designed for engineers and AI agents.
Open source
CodefreshNot ratedOctopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.
Open source · Self-hostable
AirweaveNot ratedOpen-source tool to transform application data into accessible knowledge for AI agents.
Open source · Self-hostable
HyperbolicNot ratedOpen-access AI cloud platform providing affordable, on-demand GPUs for training and serving AI models.
Open source
RedpandaNot ratedA streaming data platform designed for real-time applications and data pipelines.
Open source · Self-hostable
CanonicalNot ratedCanonical develops and supports Ubuntu, a leading open-source operating system for cloud, servers, and edge devices.
Open source · Self-hostable
DragonflyDBNot ratedSource-available, multi-threaded Redis replacement for modern cloud workloads.
Open source · Self-hostable

