Debuggex
debuggex.comInspect regular expressions visually
Inspect regular expressions visually
Interactive email campaigns with AMP forms, journeys and fallback content
Design geographic marketing experiments and analyze lift against control markets.
Usability studies with participant recruitment and recordings
Multi-step forms with partial answers, variants and controlled data delivery
Election and meeting ballots with separate simulation and full test modes
Run JavaScript and TypeScript projects with a combined runtime, package manager, test runner, and bundler.
Simulate website, API, and browser journeys from external locations to catch availability and performance failures.
Emulate complete machines or run programs built for another Linux or BSD architecture.
Build and debug .NET or game projects in a cross-platform IDE with code analysis and refactoring.
Retail font families with test and media-specific licenses.
Manage test cases, suites and releases with AI-assisted authoring and CI integrations.
Retail and custom type with detailed font specifications.
Use role-specific assessment information for hiring conversations and employee development.
Compare attribution, marketing-mix models and experiments on a shared marketing dataset.
Assemble role-specific tests from a question library, custom material and practical simulations.
Combine candidate assessments and structured interviews within a configurable talent-evaluation platform.
Manage euro direct-debit mandates and recurring collection activity
Open agent engineering platform and open source frameworks for building agents.
Collect client accounting data in a consistent format for review
Browser bandwidth tests with a self-hosting option
Nursing-school and NCLEX study using videos, visual mnemonics, guides and testing.
An open-source notebook with a freeform canvas, handwriting, Markdown, and local files.