Open source. Open possibilities.

NocoDB is a free, self-hostable open-source alternative to Airtable that provides a no-code spreadsheet interface for databases.

An asynchronous Python client for Stockholm's Open Data Platform API. It currently retrieves disabled-parking locations (about 2045) with address, district, coordinates and validity dates, requires an API key, and is structured so other datasets from the same platform can be added.

A community-maintained directory of 730+ free public APIs across 48 categories, with a searchable website and a free JSON API endpoint. Covers animals, anime, finance, geocoding, weather and more.

An open-source observability and data visualization platform used to query, visualize, and alert on metrics, logs, and traces from multiple data sources.

Dashflare is a privacy-first, self-hosted web analytics solution built on Cloudflare Workers, Grafana, and Loki. It tracks website visitors with geolocation data and provides dashboarded insights without invasive cookies.

Jackson is the leading Java JSON processing suite, offering streaming parsing, data-binding, and support for many data formats like Avro, CBOR, YAML, and more. It includes core modules, datatype extensions, and community tools, with active 2.x and 3.x versions and LTS branches.

Taipy is a Python framework designed for data scientists and ML engineers to build and deploy production-ready data and AI-driven web applications without needing to learn front-end languages.

Vector is an open-source observability data pipeline written in Rust. It collects, transforms and routes logs and metrics as either an agent or an aggregator, letting teams control where telemetry goes and reduce vendor costs.

Prometheus Operator is a Kubernetes-native tool that automates the deployment, configuration, and management of Prometheus monitoring clusters, Alertmanager, and related components using custom resources.

Appsmith is an open-source low-code platform for building admin panels, internal tools and dashboards. It connects to 25+ databases and any API, and can be self-hosted via Docker, Kubernetes or AWS AMI.

TiDB is an open-source, cloud-native distributed SQL database with ACID transactions, horizontal scalability, Raft-based high availability, HTAP via TiKV and TiFlash, MySQL 8.0 compatibility, and vector search support.

DB-GPT is an open-source agentic AI data assistant that connects to databases, spreadsheets and knowledge bases, autonomously writes SQL and Python code, runs reusable skills in sandboxed environments, and turns analysis into charts, dashboards and reports.

An asynchronous Python client for the Open Data Platform of Liège (Belgium). It currently exposes the disabled parking spaces and garages datasets through a simple async API, and its code base is designed to be extended to other datasets from the same platform.

Backtesting.py is a Python library for backtesting trading strategies. It offers a simple API, fast execution, a built-in optimizer, composable base strategies, and interactive visualizations for analyzing OHLC(V) financial data.

Vemetric is an open-source web and product analytics platform offering real-time analytics, User Journeys behaviour tracking, custom event tracking, powerful filtering, and cross-subdomain tracking. Licensed under AGPLv3.

Redash is a browser-based data exploration and visualization tool that allows users to query, visualize, and share data from various SQL and NoSQL sources.

Julia is a high-level, high-performance dynamic programming language for technical computing. This repository hosts the language's source code, build instructions, standard library, REPL, and links to documentation, packages, and community resources.

CockroachDB is a cloud-native distributed SQL database built on a transactional, strongly-consistent key-value store. It scales horizontally, survives disk, machine, rack, and datacenter failures, supports ACID transactions, and is PostgreSQL wire-protocol compatible.

A Go-based database migration tool available as both a CLI and a library. It reads migrations from various sources and applies them in order to many supported databases, with lightweight drivers and graceful stop support.