Open Source Alternatives to EPSILON3
17 open source Aerospace options similar to EPSILON3, 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.
Hugging Face76AINew York, United States$395.2MHugging Face is the leading AI community and platform for machine learning collaboration, enabling developers to build, share, and deploy models, datasets, and applications.
Open source · Self-hostable
LibreChat10AINew York, United StatesOpen-source, self-hostable AI chatbot UI.
Open source · Self-hostable
Grafana Cloud69ObservabilityNew York, United States$1.4BFull-stack observability platform built on open standards for unifying telemetry and accelerating troubleshooting.
Open source · Self-hostable
Firebolt65Cloud Data WarehousePalo Alto, United States$264.0MCloud data warehouse for building next-gen analytics experiences with sub-second performance, designed for engineers and AI agents.
Open source
MariaDB61DatabaseRedwood City, United States$131.0MA cloud database company providing a unified platform for transactional, analytical, and AI workloads.
Open source · Self-hostable
Akash Network55DePINSan Francisco, United States$2.0MDecentralized cloud marketplace for compute resources, leveraging blockchain technology (DePIN).
Open source · Self-hostable
Liblab55Developer ToolsAustin, United States$42.0MSDK-as-a-service platform for API providers, offering code generation and SDK management to enhance developer experience.
Open source · Self-hostable
Mozilla Firefox54InternetSan Francisco, United StatesOpen-source web browser focused on privacy, user control, and an open internet.
Open source · Self-hostable
Tidelift50SaaSBoston, United States$15.0MPlatform providing managed open source software with security, maintenance, and licensing assurances for enterprises.
Open source · Self-hostable
FerretDB49DatabasesWilmington, United States$6.8MAn open-source, MongoDB-compatible document database built on PostgreSQL.
Open source · Self-hostable
United Manufacturing Hub Systems48ManufacturingCologne, Germany$5.4MAn open-source data platform for manufacturers to access and structure machine data.
Open source · Self-hostable
PromptQL45Artificial IntelligenceSan Francisco, United StatesAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
PyTorch30AISan Francisco, United StatesAn open-source machine learning framework for accelerating AI research and production deployment.
Open source · Self-hostable
WP Job Manager16WordPress PluginDublin, IrelandA free WordPress job board plugin
Open source
TensorFlow11AIMountain View, United StatesAn open-source machine learning platform for building and deploying AI applications.
Open source · Self-hostable
Model Context Protocol (MCP)5AISan Francisco, United StatesAn open standard for connecting AI assistants to external data sources and tools.
Open source · Self-hostable
Agentic Commerce Protocol (ACP)4AISan Francisco, United StatesOpen-source standard enabling secure, programmatic commerce transactions between AI agents and online businesses.
Open source · Self-hostable