Directory

Open table format for data lakes that adds ACID snapshots, schema and partition evolution and time travel over Parquet, ORC or Avro files

Open table format with a transaction log over Parquet files, created by Databricks and hosted by the Linux Foundation, with Spark, Rust and Python implementations

TypeScript ORM with SQL-like query builder, schema defined in code, migrations through Drizzle Kit, and support for PostgreSQL, MySQL and SQLite drivers

Small TypeScript web framework built on Web Standard APIs that runs unchanged on Cloudflare Workers, Deno, Bun, Node.js and other JavaScript runtimes

Nonprofit certificate authority that issues free, automatically renewable TLS certificates through the ACME protocol

Open JSON-RPC standard for connecting AI applications to tools, data and prompts through servers, now stewarded under the Linux Foundation with SDKs in many languages

Vendor-neutral, machine-readable standard for describing HTTP APIs in JSON or YAML, maintained by the OpenAPI Initiative under the Linux Foundation

Collaboratively edited world map database released under the ODbL, with planet files, an editing API and derived tiles and extracts

Read-only query service for OpenStreetMap data using the Overpass QL language, available on public instances or self-hosted

Utility-first CSS framework from Tailwind Labs that styles markup with composable class names and generates only the CSS a project uses