Free
CyberChef
Open SourceEncoding & Decoding
The Cyber Swiss Army Knife: encode, decode, hash and transform data in the browser.
encoderdecoderhashbase64
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Encoding & Decoding
The Cyber Swiss Army Knife: encode, decode, hash and transform data in the browser.
Logs & Metrics · Monitoring & Observability
Open-source visualization and analytics for metrics, logs and traces.
Orchestration · DevOps
The open-source system for automating container orchestration.
NoSQL · Database
In-memory data store used for caching, queues and realtime.
Error Tracking · Monitoring & Observability
Error monitoring and tracing for every stack, with clear stack traces.
Serverless & BaaS · Database
Open-source Firebase alternative: Postgres, auth, storage, realtime and functions.
Pipelines & ETL · Data & Analytics
Open-source data integration with 550+ prebuilt connectors.
Agent & LLM Frameworks · AI for Developers
All-in-one desktop + docker app for chatting with your documents.
Pipelines & ETL · Data & Analytics
The standard open-source orchestrator for data pipelines.
Other Formats · Data Formats
Data serialization system commonly used with Kafka.
NoSQL · Database
Distributed, wide-column NoSQL database for massive scale.
Queues & Streaming · Database
The industry-standard distributed event streaming platform.
Dashboards & BI · Data & Analytics
Powerful open-source data exploration and visualization platform.
CI/CD · DevOps
Declarative GitOps continuous delivery for Kubernetes.
Passwords & IDs · Security
Open-source password manager with a free generator and vault.
Scheduling & Booking · API Tools
Open-source scheduling infrastructure — Calendly alternative with booking links, teams and an API you can self-host.
NoSQL · Database
Blazing-fast columnar database for real-time analytics.
Relational · Database
Distributed, PostgreSQL-compatible SQL database built for resilience.
Agent & LLM Frameworks · AI for Developers
Node-graph UI for Stable Diffusion and other generative models.
Serverless & BaaS · Database
Reactive backend platform with a realtime TypeScript database.
Self-Hosted PaaS · Cloud Platforms
Open-source, self-hosted Heroku/Netlify alternative.
Pipelines & ETL · Data & Analytics
Modern data orchestrator with strong typing, testing and lineage.
Pipelines & ETL · Data & Analytics
Analytics engineering: SQL-based transformation workflows with tests.
Agent & LLM Frameworks · AI for Developers
Open-source LLM app platform: agents, workflows and RAG (trending).