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Software · Development

Builder

Builder is a code editor, available on Linux: syntax highlighting, code completion and Markdown support.

  • Completely free
  • Linux
  • Open source

Overview

Builder is a code editor, available on Linux.

Features described in its Flathub listing and on its official website: syntax highlighting, code completion, Markdown support, debugging and full-text search.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Integrated development environment by GNOME.” — Wikidata, 10 November 2026
  • “It combines integrated support for essential GNOME technologies such as GTK+, GLib, and GNOME APIs with features that any developer will appreciate, like syntax highlighting and snippets.” — Flathub, 10 November 2026
  • “Clang based auto-completion, semantic highlighting, and diagnostics” — Flathub, 10 November 2026
  • “HTML, Markdown, and reStructuredText, and Sphinx live preview” — Flathub, 10 November 2026
  • “An integrated debugger for native applications” — Flathub, 10 November 2026
  • “Fast fuzzy text search across files and symbols” — Flathub, 10 November 2026

At a glance

Builder is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+ & GPL-2.0+ & LGPL-3.0+ & LGPL-2.0+ & MIT) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Builder is an actively developed Integrated Development Environment for GNOME. It combines integrated support for essential GNOME technologies such as GTK+, GLib, and GNOME APIs with features that any developer will appreciate, like syntax highlighting and snippets. You can rely on predictable releases of Builder with each new release of GNOME every six months. Features: Built in syntax highlighting for many languages Side-by-side code editors Multi-monitor support Code overview mini-map Integration with Git Integration with Autotools, Cargo, CMake, Gradle, Meson, Maven, Make, PHPize, and Waf Clang based auto-completion, semantic highlighting, and diagnostics Python based auto-completion, semantic highlighting, and diagnostics Vala based auto-completion and diagnostics Auto indentation support for C, Python, Vala, and XML HTML, Markdown, and reStructuredText, and Sphinx live preview Optional Vim, Emacs, and SublimeText style editing An integrated software profiler for native applications An integrated debugger for native applications Support for building with jhbuild and flatpak runtimes Support for viewing TODOs found within your code base Fast fuzzy text search across files and symbols Arduino integration with arduino-cli

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Wikidata (licence, platforms) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

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