PostgreSQL
postgresql.orgRun an open-source object-relational database with SQL, extensible types, indexing, replication, and JSON support.
Run an open-source object-relational database with SQL, extensible types, indexing, replication, and JSON support.
Handwritten study notes, PDF markup, audio capture, and AI-assisted review for students.
Advance application releases through configured deployment targets.
Filter, extract, and transform JSON from the command line using a compact query language.
Connect distributed services through lightweight subject-based messaging, with optional persistence via JetStream.
The Microsoft test framework for writing and running unit tests in .NET projects.
Connect project notes to dates so plans and decisions stay near the relevant day.
Provision managed PostgreSQL and connect to it from Google Cloud Shell.
An open-source notebook for multimedia notes, attachments, and personal reference material.
Turn Markdown, Liquid templates, and data files into a static website with a Ruby-based generator.
Store notes and files in an encrypted notebook that syncs across devices.
Build JVM and multiplatform applications with an open-source language and compiler toolchain.
Route HTTP requests and compose middleware for Node.js web applications.
Write local notes and checklists, then keep selected items visible with Android widgets.
Sell appointments, service bundles, and events through a booking flow linked to your calendar.
A TypeScript web framework with project tooling for building complete applications.
Generate a project documentation site from Markdown pages and a configuration file.
Turn Markdown source files into a Vue-powered documentation site.
Publish a searchable knowledge base inside a WordPress site.
Generate reference documentation from a Python project's modules and docstrings.
A mobile note-taking app that combines handwriting, AI-assisted notes, and live whiteboards.
A local-first Markdown notebook and knowledge base with backlinks and optional AI writing.
Generate structured technical documentation with reStructuredText and extensions.
Assemble Markdown chapters into a searchable online book or technical guide.