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Internet speed testing with mobile coverage resources

Edit Python modules in a desktop window, run them in an interactive shell, and debug them with built-in tools.

A LaTeX source editor with command completion, error analysis and an integrated PDF viewer.

Edit, validate, transform, and publish XML in text and visual authoring modes.

A source editor for LilyPond scores with music view, MIDI playback and score-building tools.

Build event-driven serverless applications with triggers, bindings, and several hosting plans.

Build and extend compilers with modular libraries, intermediate-representation tools, and code-generation components.

Headless, open source editor framework with paid add-ons for AI, collaboration and document conversion.

AI no-code platform for building mobile, web and desktop apps.

Measure app startup, screen rendering, and HTTP/S request behavior, then compare performance across releases and devices.

Record, replay, and inspect UI tests for desktop, web, and mobile applications.

Describe mobile and web UI journeys as YAML flows and run them on a real or virtual target.

A mobile crypto wallet with encrypted account backup and optional password recovery

Several blockchain accounts in one mobile or browser wallet

Mobile-first internal chat for frontline and deskless employee teams.

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

Write and run JavaScript end-to-end tests across local browsers and remote grids.

Record and maintain UI tests for desktop, web and mobile applications with visual automation tools.

A .NET unit-testing framework for C#, F#, and Visual Basic projects.

Capture application errors, stability signals, performance issues, and traces across mobile and web apps.

Polkadot wallet with watch-only accounts and governance

A Rust framework for building web, desktop, and mobile apps from a shared codebase.

Individual SVG and PNG downloads with an online icon editor.

A browser IDE for programming courses, with Linux project environments and an integrated terminal.