Browse free open source Lisp Text Editors and projects below. Use the toggles on the left to filter open source Lisp Text Editors by OS, license, language, programming language, and project status.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • Secure User Management, Made Simple | Frontegg Icon
    Secure User Management, Made Simple | Frontegg

    Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

    Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
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  • 1
    Lem

    Lem

    Common Lisp editor/IDE with high expansibility

    Lem is the editor/IDE well-tuned for Common Lisp. After installing lem, you can start developing in Common Lisp at once. You can skip over writing tidy settings or installing many plugins as you do on Emacs. Lem loads when starting up. Electron version is in the experimental stage.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 2
    xindy is an index processor that can be used to generate book-like indexes for arbitrary document-preparation systems. This includes systems such as TeX and LaTeX, the roff-family, and SGML/XML-based systems (e.g., HTML).
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    Downloads: 35 This Week
    Last Update:
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  • 3
    doxymacs aims to make creating/using Doxygen-created documentation easier for the {X}Emacs user.
    Downloads: 3 This Week
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    See Project
  • 4
    Collection of Emacs Development Environment Tools
    Downloads: 4 This Week
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    See Project
  • 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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  • 5
    python-mode is an Emacs and XEmacs major mode for editing Python source code. Please note that ALL DEVELOPMENT HAS MOVED TO LAUNCHPAD: http://launchpad.net/python-mode
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    An Emacs mode for SGML and XML.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    ArmedBear (ABCL) is a Common Lisp written in Java. Its compiler produces JVM byte code, tapping into the 'write once, run everywhere' philosophy of Java. J is a text editor written in Java featuring e.g. syntax highlighting and automatic indenting.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    The easy setup to give Emacs editors that out-of-box experience!
    Downloads: 3 This Week
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  • 9
    Mailcrypt is an Emacs Lisp package which provides a simple interface to public key cryptography with PGP [and now GnuPG!]. Mailcrypt makes strong cryptography a fully integrated part of your normal mail and news handling environment
    Downloads: 3 This Week
    Last Update:
    See Project
  • No-Nonsense Code-to-Cloud Security for Devs | Aikido Icon
    No-Nonsense Code-to-Cloud Security for Devs | Aikido

    Connect your GitHub, GitLab, Bitbucket, or Azure DevOps account to start scanning your repos for free.

    Aikido provides a unified security platform for developers, combining 12 powerful scans like SAST, DAST, and CSPM. AI-driven AutoFix and AutoTriage streamline vulnerability management, while runtime protection blocks attacks.
    Start for Free
  • 10
    led-text-editor

    led-text-editor

    A simple and easy-to-use but yet powerful line-oriented text editor.

    led is a simple and easy-to-use but yet powerful line-oriented text editor. It is written in Urn Lisp and compiled to Lua, so it is available for every platform where Lua (version 5.1 or higher) is available as well; however some special features are available only with Lua 5.1 (or LuaJIT) on AmigaOS, MorphOS, AROS and UNIX with XTerm. The latest release (18-Mar-2021) now supports also scripts.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    ECB is a file/code browser for Emacs. It can be used to browse any type of file and supports parsing of Java, C, C++, Elisp and some other code like perl, TeX, LaTeX. All browsing windows are within one frame and they are deletion-protected (eg by C-x 1)
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Navigator for 2ch(navi2ch) is a '2ch bbs' browser worked on Emacsen.
    Downloads: 2 This Week
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  • 13
    A comprehensive (X)Emacs interface for an inferior Common Lisp, or other Lisp based languages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14

    PHP Mode for Emacs

    PHP Support for GNU Emacs

    An Emacs major mode for editing PHP code. Features: Syntax coloring and indenting; Documentation browse and search functions; Support for Imenu and SpeedBar; Customization options; and support for language features from PHP 5.4 and beyond. The latest release can be found at https://github.com/ejmr/php-mode and all bug reports should go there..
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    The Insidious Big Brother DataBase is an emacs-based contact manager that integrates itself into your mail and news clients.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    xslide is an Emacs major mode for editing XSL stylesheets and running XSL processors. Now on GitHub at https://github.com/tkg/xslide
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    The Emacs package ANTLR-Mode provides: syntax highlighting for ANTLR grammar files, automatic indentation, menus containing rule/token definitions and supported options and various other things like running ANTLR from within Emacs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Alpaca is a programmable rich-text editor for authors using Mac OS X. It is built on, and programmable in, Common Lisp, and has a complete Common Lisp programming environment built into it.
    Downloads: 0 This Week
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  • 19
    The book index generator generate the back-of-book index for Thai book automatically.
    Downloads: 0 This Week
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    See Project
  • 20
    This is a bidirectional braille translator program written in Common Lisp. Japanese and English is almost completed; other languages are experimental statuses so far. I'm ready to translate Japanese in source code into English according to its worth.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    The Breadcrumb package is an Emacs add-on module that allows setting a series of quick bookmarks in Emacs. The bookmarks are global across different editing buffers, leaving a trail of breadcrumbs across them that you can jump back to quickly.
    Downloads: 0 This Week
    Last Update:
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  • 22
    CSharp (C#) Development Environment for XEmacs / GNU Emacs
    Downloads: 0 This Week
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  • 23
    Chinese Emacs Configuration(emacs_chinese) provide chinese configuration of gnu emacs under popular OS(windows, Linux, Freebsd,etc), also provide a lot of emacs package configurations. I just want to simplify the installation and custmaization of gnu emac
    Downloads: 0 This Week
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  • 24
    Cleanux holds different scripts and programs for cleaning up messy code, such as XML and HTML.
    Downloads: 0 This Week
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    See Project
  • 25
    A Cocoa port of Emacs for MacOS X and GNUstep
    Downloads: 0 This Week
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    See Project
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