Open Source JavaScript Debuggers
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JavaScript Debuggers
View 84 business solutionsBrowse free open source JavaScript Debuggers and projects below. Use the toggles on the left to filter open source JavaScript Debuggers by OS, license, language, programming language, and project status.
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EXECA
Process execution for humans
This package improves child_process methods with a promise interface. Strips the final newline from the output so you don't have to do stdout.trim(). Supports shebang binaries cross-platform. Improved Windows support. Higher max buffer. 100 MB instead of 200 KB. Executes locally installed binaries by name. Cleans up spawned processes when the parent process dies. Get interleaved output from stdout and stderr similar to what is printed on the terminal. (Async only). Can specify file and arguments as a single string without a shell. More descriptive errors. Gracefully handle failures by using automatic retries and exponential backoff with the p-retry package. -
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Requestly
A Powerful API Mocking and Testing Tool
Most Popular developer tool for frontend developers & QAs to debug web and mobile applications. Redirect URL (Switch Environments), Modify Headers, Mock APIs, Modify Response, Insert Scripts & Report Bugs with debugging sessions. Bring the power of Charles Proxy, Fiddler & Postman together with beautiful, modern UI & collaboration features. Available as a browser extension on all major browsers & desktop apps on all platforms. Requestly is an Open-Source platform for front-end developers with essential tooling & integrations that helps them write, test & debug their code 10x faster. Requestly reduces dependency on backend devs and environments for development & testing needs. Using Requestly, devs can create mock, test, validate & override API responses, modify request & response headers, set up redirects (Map local, Map remote), and use Requestly sessions for faster debugging. -
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Goldpinger
Debugging tool for Kubernetes which tests and displays connectivity
Goldpinger makes calls between its instances to monitor your networking. It runs as a DaemonSet on Kubernetes and produces Prometheus metrics that can be scraped, visualized, and alerted on. -
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babel-plugin-styled-components
Improve the debugging experience and add server-side rendering support
This plugin is a highly recommended supplement to the base styled-components library, offering some useful features. Consistently hashed component classNames between environments (a must for server-side rendering). Better debugging through automatic annotation of your styled components based on their context in the file system, etc. Various types of minification for styles and the tagged template literals styled components uses. -
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spy-debugger
WeChat debugging, WebView style debugging, and real-machine debugging
WeChat debugging, various WebView style debugging, real-machine debugging of the page of the mobile browser. Convenient remote debugging of mobile phone page, packet capture tool, supports HTTP/HTTPS, no need for USB connection device. One-stop page debugging and packet capture tool. Remote debugging of any mobile phone browser page, any mobile terminal webview (such as WeChat, HybridApp, etc.) Keep the phone and PC under the same network (for example, connect to the same Wi-Fi at the same time). Enter the command line spy-debugger, follow the command line prompt to open the corresponding address with a browser. Set the HTTP proxy of the mobile phone, the proxy IP address is set to the PC's IP address, and the port is spy-debuggerthe startup port (default port: 9888), and then, install the certificate on the mobile phone. Use the mobile browser to visit the page you want to debug. -
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Betwixt
Web debugging proxy based on Chrome DevTools network panel
Betwixt will help you analyze web traffic outside the browser using familiar Chrome DevTools interface. Download the latest release for your operating system, build your own bundle or run Betwixt from the source code. In order to capture traffic, you'll have to direct it to the proxy created by Betwixt in the background. -
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GDBFrontend
GDBFrontend is an easy, flexible and extensible gui debugger
GDBFrontend is an easy, flexible and extensionable GUI debugger. Try it online! GDBFrontend has an expression evaluator that you can use multiple at the same time. Right-click to a breakpoint for setting its condition. Expressions of all variables, members, and items are connected in GDBFrontend's VariablesExplorer. You can watch, filter or manage processes with Process Manager. GDBFrontend has a set of features for collabration named as "Enhanced Collabration". Collabration draw is available when you enable Enhanced Collabration. Click to Draw or use Ctrl + Shift + X shortcut to draw and Ctrl + Shift + C to clear all drawings. With Enhanced Collabration all debugger clients are synchronized on source viewing. GDBFrontend is very extensible and has powerful APIs. Some examples of GDBFrontend's extensibility. -
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This is a console that has been made in JavaScript that allows user to log there information including general info, warn, errors etc. The user can also add watch on variables.
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the omega xvi project is a javascript debugger written in javascript. it can debug code, execute blocks of code or entire applications, as well as detect variables. because of its javascript nature, it can be run through a webpage, online.
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kodeWeave
HTML/CSS/JS and Markdown Playground For Web Designers and Developers
kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices. (PhoneGap Build is recommended for mobile devices) kodeWeave similar to jsfiddle, jsbin, dabblet, liveweave, codepen, cssdeck, cssdesk, tinkerbin, d3 playground, plunker and pastebin, but allows you to export your web app as a desktop and/or chrome application. -
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CodeInvestigator is a tracing tool for Python programs. All the run time information is recorded. Read your code together with its run time details. Use it to visualize what happened when you program ran.
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JSGB is a Nintendo GameBoy emulator. Written in JavaScript and HTML5. Integrates a debugger with breakpoints support, memory, viewer and more... You can test it here: www.codebase.es/jsgb/?v=0.02
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CMakeScript is an extension to CMake, a cross-platform, open-source build system. CMakeScript adds Java Script as alternative script language to CMake's home-grown macro language. CMakeScript comes with a visual debugger for Java Script.
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ConSense is a singular "jack of all trades" web development console intended to ease all your bugtracking, testing and page architecture tasks. Its siblings, RedSand and SimpleClasses form a sound, dynamic, object oriented JavaScript/DHTML framework.
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A C#, C++, Delphi, ActiveX ,javascript and Java trace framework and a trace viewer: Tail, outputDebugString, event log, Log4J, Log4Net, Microsoft EIF support and Pocket PC development (C++ and .NET)
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Z80 ASM editor that gives you real-time info about Mnemonics, Waitstates/Clock cycles, and Labels. Features code completion, real-time debugging and T-states profiling.
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ElementProps is an Internet Explorer context menu extension that displays the properties of any DOM node in the current web page, including dynamically created elements and attributes.
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ESA Provides a wrapper around the .NET scripting engine which adds support for hosting the scripting engine in a seperate AppDomain, and includes a Design-time environment for applications.
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HTML Onlive Debugger
Realtime preview for designers and developers.
When I got my first Android tablet; I realized how much web design and development were such a tedious process for a large majority of tablet and smart phone users. I found no applications available in Google Play that enabled live code debugging which gave me the incentive to develop one myself. After purchasing Google's developer fee, as well as AIDE I then released on Google Play for all to use. -
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JS TDD (Game of Life)
JavaScript unit testing. TDD.
This Library allows you to perform unit testing in Javascript, to practice TDD and to produce the most fun Game of Life for a code retreat or coding dojo! :D You can watch is alive here: http://js-tdd.sourceforge.net/ -
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The project is designed to make life easier for programmers using javascript. Updated trace panel(disegner will work on it later :) ). And one issue with IE6. Compatible with IE7+, Chrome, FF2+, Opera(?)
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Jackal JavaScript Debugger is a debug tool written in javascript for client-side javascript debugging.It supports runtime access to the loaded script. Allows editing functions, variables etc at runtime. Beta version 3.0.0 released
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James
Web Debugging Proxy Application
James is an HTTP Proxy and Monitor that enables developers to view and intercept requests made from the browser. It is an open-source alternative to the popular developer tool Charles. James is built with hoxy, electron and react. Use wildcards in the "url to map" field, put a "*" between two adjacent slashes. The electron instance will automatically reload whenever a change is made. Download the correct version for your OS.
