Firefox JavaScript Debugger Alternatives

Sentry JavaScript Error Monitoring is a user-friendly tool that is created to automatically apply source maps to transform minified, compiled code back to its original form.

Fiddler is a debugging program for websites.

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Deployment, Defacement, & Security Monitoring

Inspect Element is a multi-functional tool that is introduced to get information about what makes the web tick, figure out what is broken in your sites, and mock-up what a specific color or font change would look like.

Firefox Page Inspector is a multi-featured tool that allows you to navigate through the components that go into rendering their pages, enabling you to achieve better performance, find bugs and check mobile views, and many others.

TypeScript allows developers to compile a superset of JavaScript to plain JavaScript on any browser, host, or operating system.

Open Source

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Jan 1, 2018 - A powerful replacement for the macOS / OS X Terminal, with 24-bit color and graphics features.

Open Source

The Collaboration Platform for API Development

Open Source

The Grunt ecosystem is huge and it's growing every day.

Open Source

The most advanced tools for tracking changes on websites.

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Open Source freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

HTTP proxy / HTTP monitor / Reverse Proxy