Easy error subclassing and stack customization for JavaScript applications

Adds useful debug features to your Electron app

Easily-extendable error for use with ES6 classes

Rich JavaScript errors with printf-style messages, error chaining, and structured metadata

Create an error from multiple errors

Collection of debug messages used by Babel for consistent error reporting and debugging output across the JavaScript transpilation ecosystem.

Tries to execute a function and discards any error that occurs

Common utilities for error handling within Backstage with structured error classes and serialization functions

Parse JSON with more helpful errors and visual code frames for debugging

Custom error messages in JSON Schemas for Ajv validator

Development-only error handler middleware for Express.js applications with comprehensive error formatting and content negotiation.

A development-only overlay for developing React applications with comprehensive error reporting and debugging capabilities.

Console for Mobile Browsers providing comprehensive debugging tools for mobile web development

Clean up error stack traces by removing unhelpful internal Node.js entries

Generate errors that contain a code frame that point to source locations.

A React component for displaying JavaScript errors in a visual red screen of death format for development environments.

Never use print() to debug again; inspect variables, expressions, and program execution with a single, simple function call.

Deprecated Babel preset that throws an error and directs users to migrate to individual stage 3 plugins

JavaScript error tracking and monitoring library for Node.js and browser environments with telemetry, automatic error grouping, and real-time notifications

A poor man's debugger for Python that provides elegant tracing without print statements.