TheJudex | Open Source B2B Software Under Apache 2.0 License

draw.io

FreeOpen SourceApache-2.0

Open-source professional diagramming software focused on user privacy.

Open data model with zero vendor lock-in risk.
Extensive native integration with enterprise tools like Atlassian and Microsoft.
Apache 2.0 licensing ensures transparency and self-hosting capability.

9.0kstars on GitHub

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MLflow

FreeOpen SourceApache-2.0

Open source AI engineering platform for agents, LLMs, and machine learning models.

Open source platform with over 30 million monthly downloads and widespread industry adoption.
Native OpenTelemetry support and compatibility with any LLM provider or agent framework.
Integrated capabilities for systematic evaluation using LLM judges and prompt management.

28.6kstars on GitHub

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Cloudflare Workers

FreemiumOpen SourceApache-2.0

Global serverless functions platform with edge execution and no cold starts.

Default deployment across 330+ cities worldwide.
Zero cold starts utilizing V8 isolates.
Native support for JavaScript, TypeScript, Python, and Rust.

9.1kstars on GitHub

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Prometheus

FreeOpen SourceApache-2.0

Open-source monitoring system and time series database.

Dimensional data model built on key-value metrics and labels.
Powerful PromQL query language for complex queries and aggregations.
Autonomous architecture independent of complex distributed storage.

66.8kstars on GitHub

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Kubernetes

FreeOpen SourceApache-2.0

Open source system for automating deployment, scaling, and management of containerized applications.

Mature and highly scalable orchestration for production workloads
Vast ecosystem of plugins and multi-cloud compatibility
Native rollout and rollback automation

128.6kstars on GitHub

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Helm

FreeOpen SourceApache-2.0

The package manager for Kubernetes.

Mature ecosystem backed by the CNCF with thousands of public charts available.
Eliminates YAML manifest duplication through parameterized templates.
Native support for version rollbacks and in-place cluster upgrades.

30.4kstars on GitHub

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Argo CD

FreeOpen SourceApache-2.0

Declarative GitOps continuous delivery tool for Kubernetes.

Native implementation of the GitOps pattern with automated synchronization.
Intuitive web interface for visualizing Kubernetes application states.
Built-in multi-cluster management capabilities.

24.5kstars on GitHub

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Qdrant

FreemiumOpen SourceApache-2.0

High-performance vector search engine written in Rust.

Written in Rust for high throughput and low memory footprint.
Native support for complex JSON payload filtering.
Available as an open-source self-hosted edition.

35.4kstars on GitHub

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Kayet

FreeOpen SourceApache-2.0

A minimalist, distraction-free text editor for macOS built with Rust and Tauri.

Completely minimalist interface that automatically hides toolbar chrome.
Built in Rust and Tauri for instant startup and low resource usage.
Free and open source with no paywalls or telemetry.

3stars on GitHub

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ClickHouse

PaidOpen SourceApache-2.0

Column-oriented OLAP database management system for real-time analytics.

Outstanding performance on large-scale analytical queries.
Highly efficient storage architecture for data compression.
Wide range of connectors for BI and data pipeline tools.

50.6kstars on GitHub

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Neon

FreemiumOpen SourceApache-2.0

Serverless Postgres backend platform featuring instant database branching.

Instantaneous creation of isolated database branches for development and testing.
Autoscaling with scale-to-zero functionality to optimize cloud resource costs.
Comprehensive backend suite including authentication, object storage, and AI gateway.

23.3kstars on GitHub

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Logcrux

FreeOpen SourceApache-2.0

Intelligent, fully local log analyzer for technical incident detection

100 percent local execution with zero cloud telemetry
Native support for over 200 standard log formats
Lightweight Python and uv installation requiring no elevated privileges

4stars on GitHub

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Apache Superset

FreeOpen SourceApache-2.0

Open-source data exploration and visualization platform built for modern analytics.

Open-source Apache 2.0 license with zero per-user licensing fees
Rich variety of native visualization types and flexible SQL connectors
Integrated semantic layer for standardizing business metrics and dimensions

75.4kstars on GitHub

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Keycloak

FreeOpen SourceApache-2.0

Open source identity and access management solution with single sign-on capabilities.

Completely open source with no commercial licensing fees.
Native support for OpenID Connect, OAuth 2.0, and SAML 2.0 standards.
Built-in identity brokering and social login integration.

37.6kstars on GitHub

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Prisma

FreemiumOpen SourceApache-2.0

TypeScript agent infrastructure combining type-safe ORM, managed Postgres, and native app hosting.

End-to-end type safety connecting database schemas directly to application code.
Unified platform combining database hosting, ORM, and compute in a single project.
Streamlined developer experience with powerful CLI tooling and native agent support.

47.7kstars on GitHub

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Supabase

FreemiumOpen SourceApache-2.0

Open source Firebase alternative providing a full Postgres database, authentication, and instant APIs.

Full Postgres database access with complete SQL capabilities and extensions.
Auto-generated instant REST and realtime APIs based directly on the schema.
Open source architecture allowing complete self-hosting without lock-in.

114.1kstars on GitHub

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Prefect

FreeOpen SourceApache-2.0

Workflow orchestration with Python for data engineering and AI systems.

Native Python workflow definition without complex domain-specific languages.
Durable execution architecture with automatic retries and error recovery.
Solid open-source core with self-hosted and cloud deployment options.

24.1kstars on GitHub

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Dagster

FreemiumOpen SourceApache-2.0

Asset-centric data orchestration platform for modern engineering and AI pipelines.

Asset-centric approach instead of simple scheduled tasks
Excellent end-to-end data lineage and quality visibility
Solid open-source core with managed cloud options

16.4kstars on GitHub

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Harbor

FreeOpen SourceApache-2.0

Open source cloud native registry securing containers and artifacts for Kubernetes environments.

CNCF graduated project with strong production adoption in Kubernetes environments.
Integrated vulnerability scanning and image security compliance policies.
Native support for OCI specifications and multiple artifact types including helm charts.

29.6kstars on GitHub

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Arcjet

Paid$25/moApache-2.0

Runtime security platform for AI agents and web applications.

Specialized prompt injection detection using custom models like Himalia 1
Granular security policies for agent tool calls and actions
Integrated SDKs for local developer environments and production deployments

4stars on GitHub

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NVIDIA Nemotron

FreeOpen SourceApache-2.0

Open speech language model for intelligent transcription across 40 languages

Supports transcription in 40 languages using natural language instructions
Includes speaker attribution and word-level timestamps out of the box
Open model weights available for research and commercial utilization

18.7kstars on GitHub

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Backenly

FreemiumOpen SourceApache-2.0

The autonomous backend built for coding agents over MCP.

Native integration via MCP protocol for coding agents.
Isolated PostgreSQL schema per project with pgvector support.
Automated monitoring and self-repair capabilities every minute.

103stars on GitHub

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Astronomer

Paid$250/moApache-2.0

Data orchestration and AI pipeline platform powered by Apache Airflow.

Optimized runtime that outperforms standard open-source Apache Airflow.
Built-in support for AI-driven workflows and data agent architectures.
Disaster recovery capabilities with under 15-minute RPO.

459stars on GitHub

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dbt Labs

FreemiumOpen SourceApache-2.0

The open standard for modern, AI-ready data transformation using SQL workflows.

SQL-first data transformation with native version control
Built-in testing and local validation before production deployment
Interactive lineage and clear visual dependency graphs across models

14.1kstars on GitHub

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Ideogram

FreemiumOpen SourceApache-2.0

Generative media platform for AI image generation, precise editing, and open visual models.

Outstanding capability in rendering accurate text within generated images.
Open-weight models focused on advanced visual intelligence and prompt fidelity.
Standardized API access for developers integrating media generation into applications.

2.9kstars on GitHub

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Rancher

FreemiumOpen SourceApache-2.0

Enterprise multi-cluster Kubernetes management and orchestration platform.

Centralized orchestration across multiple distributed Kubernetes clusters.
Open architecture compatible with any certified Kubernetes distribution.
Native support for hybrid cloud and edge computing environments.

26.0kstars on GitHub

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ImageKit

FreemiumOpen SourceApache-2.0

Media lifecycle platform with real-time optimization and intelligent DAM.

Real-time image and video optimization and transformation via URL parameters.
Ability to connect external cloud storage such as Amazon S3, Google Cloud Storage, or Azure Blob.
Intelligent DAM featuring MCP server support tailored for AI agents.

7stars on GitHub

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Helicone

FreemiumOpen SourceApache-2.0

Open-source LLM observability platform and gateway for production AI applications.

Granular token cost and latency monitoring per model
Response caching to minimize redundant API calls
Lightweight SDK integration for backend services

6.3kstars on GitHub

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Coolify

FreeOpen SourceApache-2.0

Open-source self-hosting platform as an alternative to Heroku and Vercel.

Self-hosted version is completely free without artificial feature restrictions
Supports deployments to any SSH-accessible server without vendor lock-in
Native integration with over 360 one-click services and databases

65.2kstars on GitHub

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Docker

FreemiumOpen SourceApache-2.0

Secure container runtime and microVM isolation platform for modern software development and AI agents.

Advanced microVM isolation for secure container and agent execution.
Vast ecosystem of signed, production-ready base images.
Unified and industry-standard command-line interface for local and cloud workflows.

6.1kstars on GitHub

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Pulumi

FreemiumOpen SourceApache-2.0

Infrastructure as code platform using real programming languages.

Use of general-purpose programming languages instead of proprietary DSLs
Broad provider ecosystem for multiple cloud vendors
Native support for shared state management and secrets

25.8kstars on GitHub

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DataHub

FreemiumOpen SourceApache-2.0

Data context and governance platform for engineering and artificial intelligence teams

Unified context graph connecting lineage, quality, and real-time metadata
Strong open-source community adoption with thousands of active organizations
Extensible architecture designed to integrate with AI agent workflows

12.9kstars on GitHub

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Trigger.dev

FreemiumOpen SourceApache-2.0

Durable webhooks and TypeScript task management for AI agents and asynchronous workflows.

Declare webhooks directly in TypeScript code with full type safety.
Persistence and automatic retries for long-running asynchronous tasks.
Native integration for orchestrating AI agents and conversational workflows.

16.7kstars on GitHub

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Plannotator

FreeOpen SourceApache-2.0

Local inbox and visual review layer for AI agent coding workflows.

Open-source tool executed locally on developer machines.
Compatible with multiple coding agents through CLI and MCP protocols.
Native web interface for reviewing plans, code diffs, and visual annotations.

9.9kstars on GitHub

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Infino

FreemiumOpen SourceApache-2.0

Search and analytics engine running natively over Apache Parquet files in object storage.

Executes queries directly on Apache Parquet files in object storage without data duplication.
Supports a compatible subset of Elasticsearch/OpenSearch DSL alongside REST and SQL.
Open-source core licensed under Apache-2.0 for flexible self-hosting.

143stars on GitHub

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Chroma

PaidOpen SourceApache-2.0

Open-source AI-native vector search infrastructure.

Open-source Apache 2.0 license with massive developer adoption.
Hybrid search support combining vectors, full-text, and metadata filtering.
Built-in collection forking and dataset versioning for AI workflows.

29.6kstars on GitHub

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UniverLab Canopy

FreeOpen SourceApache-2.0

A Rust DAG graph engine for AI coding agents unifying multiple harnesses and workflows.

High-performance DAG graph engine written in Rust for minimal overhead.
Agnostic architecture supporting multiple AI harnesses and model providers.
Fully open-source software with no licensing fees or proprietary locks.

4stars on GitHub

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Kiri

FreeOpen SourceApache-2.0

An ultrafast Rust-based Docker Desktop alternative for macOS, Windows, and Linux.

Container execution up to eight times faster than traditional Docker Desktop.
Full compatibility with the standard Docker command line interface and Docker Compose.
Lightweight implementation powered by a single Rust daemon.

35stars on GitHub

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Snowplow

Contact SalesOpen SourceApache-2.0

Real-time customer context layer for advanced analytics, ML, and AI agents.

Real-time behavioral event capture and enrichment at massive scale.
Eliminates third-party black boxes in customer data management.
Native integration with modern data warehouses and AI frameworks.

7.0kstars on GitHub

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Appsmith

FreemiumOpen SourceApache-2.0

Open-source low-code application platform for building internal tools.

Full JavaScript and CSS customization for business logic and components.
Open-source model enabling secure local and self-hosted deployments.
Native connectivity to multiple relational databases, NoSQL, and REST/GraphQL APIs.

41.1kstars on GitHub

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Insomnia

FreemiumOpen SourceApache-2.0

Collaborative API development and testing platform for HTTP, REST, GraphQL, and gRPC architectures.

Native support for multiple protocols including REST, GraphQL, gRPC, and WebSockets
Scratch Pad mode available without requiring user registration or login
Tight Git version control integration for collection synchronization

40.1kstars on GitHub

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instancez

FreemiumOpen SourceApache-2.0

Developer and LLM-friendly Supabase drop-in replacement packaged as a single Go binary.

Drop-in wire compatibility with the standard supabase-js client.
Simplified self-hosting deployment using a single Go binary.
Engineered natively for coding agents and AI assistant workflows.

61stars on GitHub

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Great Expectations

FreeOpen SourceApache-2.0

Open source data quality framework for testing, validating, and documenting pipelines.

Automatic generation of visual HTML data documentation.
Native integration with Python and notebook environments like Jupyter.
Extensive support for various storage backends and SQL engines.

11.9kstars on GitHub

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LlamaIndex

Paid$50/moApache-2.0

Data framework and ingestion tooling for connecting large language models with enterprise data.

Comprehensive collection of connectors for unstructured data sources
Active open-source community with frequent releases in Python and TS
Specialized document parsing for complex tables and charts

12.9kstars on GitHub

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Replicate

PaidOpen SourceApache-2.0

Run and fine-tune open-source machine learning models via cloud API.

Immediate access to a vast library of production-ready open-source models.
Simplified deployment of custom models using a unified API.
Effective fine-tuning capabilities for domain-specific tasks.

597stars on GitHub

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Linkly AI

FreeOpen SourceApache-2.0

Browser extension to convert web pages into Markdown optimized for AI agents.

Instantly converts complex web pages into structured Markdown format.
Specifically optimized for reading and processing by AI agents.
Allows direct saving to local storage or synchronization with the desktop app.

67stars on GitHub

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Looker

Contact SalesOpen SourceApache-2.0

Agentic business intelligence and embedded analytics platform built on a trusted semantic layer.

Centralized semantic layer that unifies business metrics across the entire organization.
Native integration with artificial intelligence and conversational agents powered by Gemini.
Extensible APIs and open architecture designed for developers and analytics integration.

39stars on GitHub

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Fly.io

FreemiumOpen SourceApache-2.0

Global cloud platform to deploy applications and agents on hardware-isolated virtual machines.

True hardware isolation using microVMs for each instance.
Multi-region global deployment close to end users.
Excellent CLI support and automation via flyctl.

1.7kstars on GitHub

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Postman

FreemiumOpen SourceApache-2.0

Native API platform for development, testing, documentation, and agent automation.

Broad protocol support including HTTP, GraphQL, gRPC, and WebSockets.
Advanced tooling for automated testing and request collections.
Native integration with coding agents through CLI and MCP servers.

24stars on GitHub

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Linum

FreeOpen SourceApache-2.0

Open-source text-to-image and video generative models trained from scratch by an independent research lab.

Open-source model weights under the Apache 2.0 license.
High computational efficiency with training runs around 21K USD.
Transparent focus on open generative video and image research.

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DigitalOcean

Paid$4/moApache-2.0

Cloud computing platform for developers offering scalable virtual servers, managed databases, and AI inference.

Predictable and transparent pricing structure with no hidden egress fees on standard plans.
Intuitive control panel and powerful API that streamline virtual server provisioning.
Comprehensive technical documentation and up-to-date tutorials for developers.

7.1kstars on GitHub

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Alpha Vantage

FreeOpen SourceApache-2.0

Financial market data API and congressional stock trading analytics tools.

Immediate access to market data and congressional filings via API.
Automated performance comparison against the S&P 500 index.
Free account tier available for basic monitoring and tracking.

17.7kstars on GitHub

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saasmail

FreeOpen SourceApache-2.0

Centralized per-customer email inbox for SaaS teams running on Cloudflare Workers.

Serverless architecture running on Cloudflare Workers with zero server upkeep.
Unified customer timeline merging marketing, transactional, and support threads.
Compatible with reliable outbound providers such as Resend, Postmark, and Cloudflare.

273stars on GitHub

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ArtCraft

Paid$14.50/moApache-2.0

Web creative studio for image composition, video editing and 3D scenes

Unified web environment for image editing, video, and 3D scenes.
Detailed visual control prior to AI generation.
Annual plans offering significant savings compared to monthly billing.

38.0kstars on GitHub

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Thinking Machines Lab

Contact SalesOpen SourceApache-2.0

Advanced mixture-of-experts language models for software engineering and technical reasoning.

Efficient mixture-of-experts architecture with high active inference capacity.
Advanced capabilities in agentic coding and visual interpretation.
Upcoming open weights availability under the Apache 2.0 license.

4.2kstars on GitHub

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Axel

Contact SalesOpen SourceApache-2.0

Agent orchestration and threads in the terminal for Rex.

Executes real AI agents via their native CLIs directly in the terminal.
Maintains durable and persistent threads solving the scrollback limitation in long sessions.
Native integration with Tailscale mesh networks for multi-machine agent distribution.

215stars on GitHub

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