Development

Editors and tools for building software. Read the essentials, check the platform and follow the documented download.

416 published listings

Papercut SMTP 7.8.0

Capture development email locally and inspect its HTML, headers, attachments and raw source with Papercut SMTP, a free Windows SMTP server and message viewer.

  • Windows
  • Free and open source; Apache License 2.0
  • Development
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PCB Artist

Create circuit schematics and printed circuit board layouts with PCB Artist, AdvancedPCB’s free Windows design software with component libraries, routing and design rule checks.

  • Windows
  • Free to download and use; no software licensing fees
  • Development
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Pelles C 14.50

Write, compile and debug C programs for desktop Windows with Pelles C, a freeware development kit with an integrated editor and resource tools.

  • Windows
  • Freeware for personal and commercial use; redistribution allowed, resale prohibited
  • Development
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Pencil Project 4.0.0

Draw interface mockups and flowcharts with Pencil Project, a free, open-source desktop prototyping tool with reusable stencils, linked pages and PNG or HTML export.

  • Windows
  • Free and open source under GNU GPLv2; optional commercial source licensing from Evolus
  • Development
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pgAdmin 4 9.18

Manage PostgreSQL databases, write SQL and inspect query plans with pgAdmin 4, an open-source administration tool available as a Windows desktop application.

  • Windows
  • Free and open source; PostgreSQL Licence
  • Development
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Pharo Launcher

Download, organize and launch Pharo development images on Windows, with automatic retrieval of the virtual machines they need.

  • Windows
  • Free and open source; MIT License
  • Development
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Phoenix Code 5.5.11

Edit HTML, CSS and JavaScript with live preview, code intelligence and integrated Git in Phoenix Code for Windows. Community features are free; visual editing requires Pro.

  • Windows
  • Free Community features and paid Pro features under the Phoenix Code License Agreement; repository source separately licensed under AGPL.
  • Development
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PhpStorm 2026.2.3

Edit PHP projects, navigate framework code, debug with Xdebug and work with databases in JetBrains PhpStorm. This Windows download is a subscription-based IDE with a free 30-day trial.

  • Windows
  • Proprietary, subscription-based; free 30-day trial; eligibility-based educational and open-source licenses
  • Development
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PhpStorm 2026.2.3

Write, navigate, refactor and debug PHP projects on macOS with PhpStorm, JetBrains' IDE for PHP frameworks, frontend code and databases. A free 30-day trial is available.

  • macOS
  • Proprietary subscription; free 30-day trial; eligibility-based free licenses available
  • Development
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PilotEdit 21.6.0

Edit large text files, compare changes and work with remote files in PilotEdit for Windows. This download is the paid Pro x64 edition, not the separate free Lite edition.

  • Windows
  • Commercial Pro license; separate free Lite edition available
  • Development
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Pkl 0.32.2

Write typed configuration in Pkl and generate JSON, YAML and other formats with Apple's open-source command-line tool for Windows x64.

  • Windows
  • Free and open source; Apache License 2.0
  • Development
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Playdate SDK 3.1.2

Build Playdate games on Windows with Panic's Lua and C APIs, compiler, documentation and desktop Simulator for local development.

  • Windows
  • Proprietary; royalty-free use under the Playdate SDK License 1.0
  • Development
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Playdate SDK 3.1.2

Build Playdate games on a Mac with Lua or C, compile projects, and inspect them in the included Simulator using performance and memory tools.

  • macOS
  • Proprietary; royalty-free use under the Playdate SDK License 1.0
  • Development
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PostgreSQL 18.6

Store and query application data with PostgreSQL, a free, open-source relational database. The Windows x64 installer includes the server and pgAdmin management tools.

  • Windows
  • Free and open source under the PostgreSQL License
  • Development
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Prek 0.5.7

Run Git hooks before commits, on demand or in CI with Prek, an MIT-licensed command-line alternative to pre-commit. This download is the Windows x64 ZIP archive.

  • Windows
  • Free and open source; MIT License
  • Development
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Processing 4.5.7

Write code to create interactive graphics with Processing, a free, open-source sketchbook and programming environment for visual art on Windows.

  • Windows
  • Free and open source; GPL-2.0 for the PDE and LGPL-2.1 for the core library
  • Development
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Processing 4.5.7

Write visual sketches, animations and interactive graphics on Mac with Processing, a free, open-source coding environment. This download is the Apple Silicon build.

  • macOS
  • Free and open source; PDE under GPL-2.0, core library under LGPL-2.1
  • Development
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Programmer's Notepad 2.4.2

Edit source code and text on Windows with Programmer's Notepad, a free editor with fuzzy navigation, style presets and optional Python scripting.

  • Windows
  • Free
  • Development
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Proxyman 26.2.0

Inspect HTTP and HTTPS traffic on Windows with Proxyman, a debugging proxy for examining API requests, modifying responses and mocking server replies.

  • Windows
  • Commercial; limited-feature evaluation and paid premium licenses
  • Development
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PSeInt 20250314

Learn algorithm basics with PSeInt for Windows: write Spanish pseudocode, edit flowcharts and step through execution while inspecting variables.

  • Windows
  • Free and open source; GNU General Public License v2
  • Development
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PSPad 5.5.2 (851)

Edit code and plain text on Windows with PSPad, a free programmer’s editor with syntax highlighting, project tools, file comparison and a built-in HEX editor.

  • Windows
  • Freeware; no-payment use including commercial purposes under the PSPad end-user licence
  • Development
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Publii 0.48.1 (build 17565)

Build a static website from your Windows desktop with Publii, a free, open-source CMS with block, WYSIWYG and Markdown editors and publishing tools for supported hosts.

  • Windows
  • Free and open source; GNU GPL-3.0
  • Development
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PulseDev

Point at elements on a local website, send changes to your existing coding agent and review source diffs with PulseDev for Mac. Free for one project; agent access is separate.

  • macOS
  • Free plan with paid Pro and lifetime upgrades; coding-agent access is separate
  • Development
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PVRTexTool

Compress and prepare textures for graphics applications with PVRTexTool for Windows, using a visual editor, command-line batch processing or a C library.

  • Windows
  • Free to use under the proprietary PowerVR Tools End User Licence Agreement
  • Development
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