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JavaScript
Free
JavaScript (JS) is a lightweight interpreted or just-in-time compiled programming language with first-class functions. While it is most well-known as the scripting language for Web pages,
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JDownloader
Free
JDownloader is a free downloading tool that enables you to download files from over a hundred hosting sites. The tool is compatible with Linux, Mac and Windows operating systems. You can start,
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JEdit
Free
JEdit is a mature programmer's text editor with hundreds (counting the time developing plugins) of person-years of development behind it. To download, install, and set up jEdit as quickly
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Jekyll
Free
Jekyll is a static website generator that provides a program for creating your own safe and fast website using static HTML code, without the difficulty of hand coding everything yourself. This
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Jenkins
Free
Jenkins simplifies the lives of software developers by offering automation of a number of aspects of the development process.
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JGnash
Free
Free, secure and fast downloads from the largest Open Source applications and software directory - SourceForge.net
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Jihosoft 4K Video Downloader
Free
Jihosoft 4K Video Downloader, the best free YouTube video downloader for PC & Mac, designed to help users download videos from YouTube, Facebook, Twitter, Instagram, Dailymotion, Metacafe,
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Jitsi
Free
Free open-source video conferencing for web & mobile. Make a call, launch on your own servers in minutes, integrate into your app, or develop something new
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JMonkeyEngine
Free
What is jMonkeyEngine? It's a free, open source game engine, made especially for Java game developers who want to create 3D games using modern technology. The software is programmed entirely
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Jodel
Free
What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time. By voting Jodels, you have the power to decide what your campus is talking about. Share
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Joomla
Free
Joomla is a free and open source content management system (CMS), used for creating dynamic websites. It is the second most used CMS in the world (after WordPress), and it uses a model-view-controller
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Joplin
Free
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified
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JPEGView
Free
Download JPEGView - Image Viewer and Editor for free. Lean and fast image viewer with minimal GUI. JPEGView is a lean, fast and highly configurable viewer/editor for JPEG, BMP, PNG, WEBP, TGA,
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JQuery Mobile
Free
JQuery Mobile takes the robust capabilities of JavaScript and the expansive library of features in jQuery and adapts them specifically towards responsive mobile web apps.
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JQuery UI
Free
JQuery improves the tools at your disposal for client-side web design with a whole host of effects, widgets, and themes.
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JsDelivr
Free
A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance, perfectly suited for production use.
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JsFiddle
Free
JsFiddle is a cloud-based JavaScript code playground that allows web developers to tweak their code and see the results of this tweaking in real time. The editor supports not only JavaScript
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JSHint
Free
New JSHint website. Anton Kovalyov Oct 1st, 2013. For the last couple of weeks I've been working on a new homepage for JSHint and today I'm proud to announce the new jshint.com! JSHint Website.
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JSitor
Free
JSitor is a cloud-based code playground that allows web developers to write/share the web snippets as well NodeJS snippets. This supports almost all mainstream JavaScript, CSS and HTML frameworks.
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Julia
Free
Julia is a sophisticated programming language designed especially for numerical computing with specializations in analysis and computational science. It is also efficient for web use, general
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Jupyter
Free
The Jupyter Notebook is a web-based interactive computing platform. The notebook combines live code, equations, narrative text, visualizations, interactive dashboards and other media.
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Justin.tv
Free
Justin.tv was one of the first platforms to allow video streaming by anyone. It made its appearance in 2007 and remained in development and use until 2014. Justin.tv was ultimately acquired by
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JustWatch
Free
Find out where to watch movies and tv shows legally online with JustWatch. The streaming search engine.
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Jux
Free
Discover sustainable fashion, fair trade clothing, vegan gifts & green living ✓ Guilt -free Goods ✓ Shop now!
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JXplorer
Free
Many thanks to our translators who've worked so hard making JXplorer multilingual:
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K-9 Mail
Free
K-9 Mail – Advanced Email for Android ????. Contribute to k9mail/k-9 development by creating an account on GitHub.
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K-Meleon
Free
K-Meleon is a fast and customizable lightweight web browser for Windows, based on the rendering engine of Mozilla. K-Meleon is free (open source) software released under the GNU General Public
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