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A private research notebook that runs entirely on your own machine.

A workout notebook with exercise history and progress views

A cloud grid for running browser and mobile application tests on remote devices.

Control Chrome or Firefox from JavaScript to automate browser workflows and exercise web pages.

Manually inspect a website across real browser and device configurations, including private test sites.

A self-hosted browser notebook that keeps Markdown notes, links, comments, and history together.

Connect automation code to hosted browsers or use HTTP endpoints for common browser tasks.

A local-first Markdown notebook with daily notes, history, and optional private sync.

Create and run browser, mobile, API, performance, and accessibility checks with a hosted test platform.

A browser-installed notebook for handwriting, PDF markup, and recorded lectures that works offline.

A Markdown notebook that keeps notes in a Git-backed repository and works in the browser or desktop apps.

A self-hosted note library with Markdown, boards, daily notes, and shared workspaces.

Build a non-linear personal wiki as a single HTML file or a Node.js application.

Write browser tests for web applications across Chromium, Firefox, and WebKit.

Check a web application manually or with automation across remote browser and operating-system combinations.

A browser-installable notes app that stores Markdown files in the user’s Google Drive or Dropbox.

Write and verify Arduino sketches in a browser, then connect the editor to compatible boards through the Cloud Agent.

Instrument browser applications with client-side real-user monitoring signals for a Grafana observability stack.

A browser-based Code OSS editor paired with a Google Cloud Shell terminal and development environment.

A beginner-focused BASIC IDE with instant graphics, a step debugger, and a browser-based WebAssembly edition.

Record and schedule browser tests for web flows without writing the test steps by hand.

Record and run realistic web and API load tests in real browsers, then review user-facing timings.

Record browser journeys and turn them into editable web end-to-end tests.

A browser editor for micro:bit projects with Blocks, JavaScript, Python, and a device simulator.