SQLZoo
sqlzoo.netStep-by-step SQL practice on themed data tables
Step-by-step SQL practice on themed data tables
Interactive MIT online courses with free learning access.
Build interactive terminal applications in Go with an event-driven model, update, and view loop.
Reserve workplace desks, rooms, and parking from an app, calendar invite, or office map.
A browser IDE for running short code samples or building supported multi-file projects across many languages.
Jump to frequently used directories from the terminal with a smarter `cd` command.
A multimodal note workspace for handwriting, audio, documents, PDFs, and study materials.
Build browser interfaces with declarative components compiled from HTML, CSS, and JavaScript.
A browser-based Elixir notebook for executable code and Markdown, with interactive results and collaboration.
Turn results from supported test frameworks into interactive reports with history, steps and failure context.
Explore financial statements and publish reporting adjustments alongside ERP data
Process meshes and CAD through desktop, command-line and hosted tools
Combine Python expressions and shell commands in one Python-based command prompt.
Compare strategy experiments across assets, parameters and historical periods
Build reusable implicit models and prepare geometry for engineering tools
Interactive remeshing through orientation and position fields
Manage UK investments with flat monthly plans and scheduled purchases
Keep multiple terminal programs in persistent sessions, windows, and panes.
A local-first Markdown reader, editor, and notebook that keeps documents as plain files on your device.
Let people self-book desks, rooms, and shared resources with rules for fair use.
Add interactive dashboards and data exploration to an existing software application.
An infinite canvas for human and AI-agent collaboration, with versioned boards and editable outputs.
Desktop story scheduling with an editor for links and interactive stickers