Open Source Software Development Software

Browse free open source Software Development software and projects for Windows and Mac below. Use the toggles on the left to filter open source Software Development software by OS, license, language, programming language, and project status.

  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • Demo Series - Small Business Backup By Veeam Icon
    Demo Series - Small Business Backup By Veeam

    Learn how to protect your Microsoft 365 data, with simple, actionable tips today.

    Watch this on-demand demo series and learn how to protect your Microsoft 365 data with clear, simple, actionable steps that are easy to implement for businesses of all sizes.
    Watch Demo Series
  • 1
    PHP QR Code

    PHP QR Code

    Create QR Codes in PHP

    PHP QR Code is open source (LGPL) library for generating QR Code, 2-dimensional barcode. Based on libqrencode C library, provides API for creating QR Code barcode images (PNG, JPEG thanks to GD2). Implemented purely in PHP.
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    Downloads: 331 This Week
    Last Update:
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  • 2
    Ada Class Library

    Ada Class Library

    Ada Class Library - an object orientated library for Ada.

    Text search and replace. Scripting (small tool programs). CGI scripts. Execution of external programs (incl. I/O redirection). Garbage Collection. Extendended Booch Components. CD-Recorder
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    Downloads: 488 This Week
    Last Update:
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  • 3
    Lobo is an extensible all-Java web browser and RIA platform. It supports HTML 4, Javascript (AJAX) and CSS 2 plus direct JavaFX and Java (Swing/AWT) rendering. Cobra is the web browser's renderer API; also a Javascript-aware HTML parser.
    Downloads: 21 This Week
    Last Update:
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  • 4
    kXML is a lean Common XML API with namespace and WAP support that is intended to fit into the JAVA KVM for limited devices like the Palm Pilot.
    Downloads: 20 This Week
    Last Update:
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  • One Monitoring Tool for IT, OT and Cloud | Free Trial Icon
    One Monitoring Tool for IT, OT and Cloud | Free Trial

    Vendor-agnostic monitoring across on-prem servers, cloud platforms and OT devices, all in one dashboard. No more tool sprawl.

    Modern infrastructure spans data centers, cloud platforms and factory floors, and every blind spot between them is a risk. PRTG supports SNMP, WMI, SSH and other standard protocols to monitor IT, OT and hybrid environments through one customizable dashboard. Build the views your team needs, from network health to application performance, without switching tools. Try PRTG free for 30 days now.
    Try PRTG Free
  • 5
    iText®, a JAVA PDF library

    iText®, a JAVA PDF library

    PDF Library for Developers

    iText is an open-source PDF library available for Java and .NET (C#). iText allows you to effortlessly generate and manipulate standards-compliant PDF documents with a powerful and feature-rich SDK. With iText, you can create archivable and accessible PDFs, split and merge documents, fill and flatten forms, digitally sign documents, and more. iText add-ons enable additional functionality, such as PDF creation from HTML templates, secure redaction, OCR, and much more. The latest versions of iText build on the success of previous versions and feature an improved document engine, high and low-level programming capabilities, and a more efficient modular structure. iText represents the next level for developers looking to leverage PDF in document workflows. The main project page for iText is now on GitHub, and all the latest releases, code samples, open source add-ons and tools, etc. can be found at https://github.com/itext/.
    Downloads: 49 This Week
    Last Update:
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  • 6
    Greasemonkey Port

    Greasemonkey Port

    Greasemonkey Port for the SeaMonkey Browser

    Please note that there are no guarantees that XPI installations will work in advertised minVersion and maxVersion. Farby did include some basics for SeaMonkey however a few things seem to be missing. The current HEAD here will probably not work directly in Firefox and nor should you be using this fork in Firefox. It is intended for SeaMonkey users only. Announcements at https://openuserjs.org/announcements/Greasemonkey_Port_Update
    Leader badge
    Downloads: 12 This Week
    Last Update:
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  • 7
    CSSBox

    CSSBox

    Pure Java HTML / CSS rendering engine

    CSSBox is an (X)HTML/CSS rendering engine written in pure Java. Its primary purpose is to provide a complete information about the rendered page suitable for further processing. However, it also allows displaying the rendered document.
    Downloads: 10 This Week
    Last Update:
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  • 8
    Early Access iText, a PDF generation library in Java
    Downloads: 10 This Week
    Last Update:
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  • 9
    Codepage Converter
    Codepage Converter - Convert HTML/Text files to different encoding formats e.g. ANSI to UTF-8 or Unicode. Convert multiple files with 1 click. Works with all encodings. * The issue with UTF-8 has now been fixed.
    Downloads: 4 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 10
    Prosper is a web application development framework to augment Prolog applications with a web interface. It supports control flow in visual logic and promotes a clear separation of model from view.
    Downloads: 13 This Week
    Last Update:
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  • 11
    A collection of open source and public domain software for Java, XML, and Cocoa, primarily. Some projects: ThreadWorker, Xmlizable, Base64, Tabu Search.
    Downloads: 3 This Week
    Last Update:
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  • 12
    PHPeclipse - PHP Eclipse-Plugin
    PHP - Support for the Eclipse IDE Framework ( www.eclipse.org ). Some Features are PHP parser, debugger, code formatter, outline view, templates...(Programming Language: Java)
    Downloads: 3 This Week
    Last Update:
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  • 13
    The DBE Studio is an Integrated Development Environment (IDE) for the Digital Business Ecosystem (DBE). It includes eclipse plugins that allow business services to be analysed, and corresponding software services to be defined, developed and deployed.
    Downloads: 10 This Week
    Last Update:
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  • 14
    Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (file systems, web sites, mail boxes, ...) and the file formats (documents, images, ...) occurring in these systems.
    Downloads: 2 This Week
    Last Update:
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  • 15
    librsync has moved to https://github.com/librsync/librsync
    Downloads: 3 This Week
    Last Update:
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  • 16
    jit enables lazy loading of javascript resources by injecting proxy functions that will load the required script the first time they are used.
    Downloads: 8 This Week
    Last Update:
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  • 17
    Mobirise Free Mobile Website Builder

    Mobirise Free Mobile Website Builder

    Create awesome mobile-first websites - No coding!

    Mobirise makes it easy for anyone to create responsive, Google-friendly websites — no coding needed. Choose from 200+ Bootstrap 5-based themes to build sites that look modern, professional, and perfect on any device. With the free Mobirise Website Builder, you can design and edit pages visually using drag-and-drop, inline editing, and simple site settings. Now with Mobirise AI, you can generate entire websites in a minute — making web design faster and more creative than ever.
    Downloads: 6 This Week
    Last Update:
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  • 18
    XMLNuke

    XMLNuke

    A Web Development Framework focused on the Data

    == THIS PROJECT HAS MOVED TO https://github.com/byjg/xmlnuke == XMLNuke is a Web Development Framework focused on produce the data. You can to create applications very rich by producing natively XML or JSON and the Framework transforms this data to another formats including XHTML.
    Downloads: 2 This Week
    Last Update:
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  • 19
    ThinWire is an Ajax RIA framework for building zero footprint Ajax browser applications that feel like desktop GUI applications. Program Ajax on the server, using an event driven GUI model that reconnects program logic. All Major Ajax Browsers Supported!
    Downloads: 3 This Week
    Last Update:
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  • 20
    Eggdrop
    Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
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    Downloads: 5 This Week
    Last Update:
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  • 21
    LocalDomain

    LocalDomain

    Local domain management tool for developers. Map custom local domains

    LocalDomain is a desktop application that simplifies local development by letting you create and manage custom local domains. It handles hosts file entries, generates trusted SSL certificates via a local CA, manages a reverse proxy (Caddy) daemon, and provides access/audit logging — all through an intuitive GUI. Built with Tauri, React, and Rust.
    Downloads: 5 This Week
    Last Update:
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  • 22
    WebHarvest - web data extraction tool
    Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Gekko is a Framework for building dynamic websites, it includes a wide range of features to build interactive and secure websites within a short period of time. Many modules are available, so you also can use Gekko as a CMS or even a rich Weblog System.
    Downloads: 4 This Week
    Last Update:
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  • 24
    Scratch is a simple markup language for use in applications such as weblogs and content management systems. Scratch provides simple inline and block tags for formatting and semantic markup.
    Downloads: 4 This Week
    Last Update:
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  • 25
    Ve-EDIT is a webbased sourcecode editor. It has syntax highlighting, a debugger (PHP, XML) , FTP & CVS client and more.....
    Downloads: 4 This Week
    Last Update:
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