Best Firefox JavaScript Debugger Alternatives & Competitors in 2024

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.

Powerful SaaS integration toolkit for SaaS developers - create, amplify, manage and publish native integrations from within your app with Cyclr's flexible Embedded iPaaS.

Try for free paid Free Trial

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

Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more

Popular free terminal application. Mostly used as an SSH client.

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