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

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  • 1
    Scribus

    Scribus

    Powerful desktop publishing software

    Scribus is an Open Source program that brings professional page layout to Linux, BSD UNIX, Solaris, OpenIndiana, GNU/Hurd, Mac OS X, OS/2 Warp 4, eComStation, and Windows desktops with a combination of press-ready output and new approaches to page design. Underneath a modern and user-friendly interface, Scribus supports professional publishing features, such as color separations, CMYK and spot colors, ICC color management, and versatile PDF creation.
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    Downloads: 17,279 This Week
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  • 2

    Notepad++ Plugins

    A plugin to improve Notepad++

    Notepad++ plugins is a collection of tools which plays a role of completion for Notepad++. This project contains Explorer, Function List, Hex Editor, Spell Checker and a console program NppExec. Other plugin developers are invited to share their projects
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    Downloads: 2,527 This Week
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  • 3
    KDiff3

    KDiff3

    A graphical text difference analyzer

    This repository is no longer maintained and is kept for archival purposes. See https://invent.kde.org/sdk/kdiff3 for the newest code and https://download.kde.org/stable/kdiff3/ for release bundles. All bugs should be filed at bugs.kde.org. KDiff3 is a graphical text difference analyzer for up to 3 input files, provides character-by-character analysis and a text merge tool with integrated editor. It can also compare and merge directories. Platform-independant.
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    Downloads: 2,053 This Week
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  • 4

    Unikey Vietnamese Input Method

    A Vietnamese keyboard for Windows and Linux

    A Vietnamese keyboard for Windows and Linux
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    Downloads: 1,222 This Week
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  • 5
    LibreOffice

    LibreOffice

    A free and powerful office suite

    LibreOffice is a free and powerful office suite, and a successor to OpenOffice. Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. LibreOffice is Free and Open Source Software (FOSS) – development is open to new talent and new ideas, and our software is tested and used daily by a large and devoted user community. Your documents will look professional and clean, regardless of their purpose: a letter, a master thesis, a brochure, financial reports, marketing presentations, technical drawings and diagrams. LibreOffice makes your work look great while you focus on the content, thanks to its powerful styles system and structuring tools. LibreOffice is compatible with a wide range of document formats such as Microsoft® Word (.doc, .docx), Excel (.xls, .xlsx), PowerPoint (.ppt, .pptx) and Publisher. But LibreOffice goes much further with its native support for a modern and open standard (OpenDocument Format).
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    Downloads: 1,218 This Week
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  • 6
    QPrompt

    QPrompt

    Personal teleprompter software for all video makers.

    Free teleprompter software for all video creators. Built with ease of use, fast performance, control accuracy, and cross-platform support in mind. QPrompt works with studio teleprompters and tablet teleprompters, cellphones, and webcams. It was also designed for use in video conferences.
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    Downloads: 1,784 This Week
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  • 7
    Scintilla
    Scintilla is a free source code editing component which includes useful features such as syntax styling, error indicators, folding, code completion and call tips. The project includes SciTE (SCIntilla based Text Editor).
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    Downloads: 804 This Week
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  • 8
    Bowtie, an ultrafast, memory-efficient short read aligner for short DNA sequences (reads) from next-gen sequencers. Please cite: Langmead B, et al. Ultrafast and memory-efficient alignment of short DNA sequences to the human genome. Genome Biol 10:R25.
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    Downloads: 676 This Week
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  • 9
    SAKURA Editor

    SAKURA Editor

    A free Japanese text editor for Windows

    A free Japanese text editor for Windows
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    Downloads: 696 This Week
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  • 10
    Notepad++ Compare plugin

    Notepad++ Compare plugin

    Comparison plugin for Notepad++ editor

    Comparison plugin for Notepad++ editor.
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    Downloads: 803 This Week
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  • 11
    Swiss File Knife

    Swiss File Knife

    One hundred command line tools in a small and portable binary.

    Create zip files, extract zip files, replace text in files, search in files using expressions, stream text editor, instant command line ftp and http server, send folder via network, copy folder excluding sub folders and files, find duplicate files, run a command on all files of a folder, split and join large files, make md5 checksum lists of files, remove tab characters, convert CR/LF, list newest or biggest files of a folder, compare folders, treesize, show first or last lines of a file, find filenames fast using index files, rename many files using expressions, copy part of a file, change times of a file, set file time from filename, print colored text to terminal, convert csv to tab separated, download files from web, send http or udp requests, print tcp or udp traffic, create hexdump of files, join many text files into one, list nested .zip .tar .tar.gz .tar.bz2 archive contents. Fully portable, for USB stick, without installation. For Windows, Linux and Mac OS/X.
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    Downloads: 486 This Week
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  • 12
    AnalysePlugin
    Shorten your time of reading mega bytes of log files! DE 2016-01 Supporting Don HO's NotePad++ see http://notepad-plus-plus.org/ This sources are a dockable pattern search plugin for Notepad++ version 5.1 or later. With this plugin you can search for multiple patterns in any of the opened documents in NotePad++. You may want to tune your search using all fancy tricks from NPP like regular expressions or escaped patterns and give each of the searches different colors. The result will be stored in a dockable window in same ordering as in the origin and a double click allows you to jump to the original position. It is designed to treat log-files of typical size like 60MB. More features can be found in the help dialogue of the plugin. For generating the dll file I use a msdev compiler. If you like to port it to other OSs just let me know your changes and I'll incorporate it. Best Regards, Mattes H.
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    Downloads: 464 This Week
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  • 13
    XML Copy Editor
    XML Copy Editor is a fast, free, validating XML editor.
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    Downloads: 498 This Week
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  • 14
    Hunspell is a spell checker and morphological analyzer library and program designed for languages with rich morphology and complex compounding or character encoding. Hunspell interfaces: Curses, Ispell compatible pipe interface, OpenOffice.org UNO module
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    Downloads: 339 This Week
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  • 15
    iMath
    Intelligent formulas: Numeric and symbolic calculations in LibreOffice Writer and Impress. The iMath extension to Libreoffice enables numeric and symbolic calculations inside a Writer document. If your OS can install .deb packages, have a look at my PPA http://launchpad.net/~jrheinlaender/+archive/ppa
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    Downloads: 257 This Week
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  • 16
    DeepSpeech

    DeepSpeech

    Open source embedded speech-to-text engine

    DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers. DeepSpeech is an open-source Speech-To-Text engine, using a model trained by machine learning techniques based on Baidu's Deep Speech research paper. Project DeepSpeech uses Google's TensorFlow to make the implementation easier. A pre-trained English model is available for use and can be downloaded following the instructions in the usage docs. If you want to use the pre-trained English model for performing speech-to-text, you can download it (along with other important inference material) from the DeepSpeech releases page.
    Downloads: 37 This Week
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  • 17
    Kile LaTeX Editor

    Kile LaTeX Editor

    Kile is a feature-rich LaTeX editor

    Kile is a LaTeX editor, a TeX shell that simplifies the creation of LaTeX documents.
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    Downloads: 176 This Week
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  • 18
    WordPerfect Document importer
    Library for reading Corel WordPerfect(tm) documents.
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    Downloads: 333 This Week
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  • 19
    Notepad++ Python Script

    Notepad++ Python Script

    A Python Scripting plugin for Notepad++

    A Python Scripting plugin for Notepad++. Complete easy script access to all of the editor's features (including absolutely everything in Scintilla). Configurable menus and toolbar options, assign shortcuts to scripts.
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    Downloads: 146 This Week
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  • 20
    The AbiWord word processor is a full-featured cross-platform word processor.
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    Downloads: 305 This Week
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  • 21
    Mozc

    Mozc

    Mozc - a Japanese Input Method Editor designed for multi-platform

    Mozc is an open source Japanese Input Method Editor (IME) developed by Google, designed to provide Japanese text input across multiple operating systems including Android, macOS, Windows, GNU/Linux, and Chromium OS. The project originated as a subset of Google Japanese Input, released publicly under the BSD 3-Clause license for community use and development. Mozc offers core IME functionality such as text conversion, prediction, and dictionary-based input, enabling users to efficiently type and edit Japanese text. While Mozc shares much of its codebase with Google’s internal IME, it operates as an independent open source project without official support, guarantees, or stable release cycles. Developers can build Mozc from source for their preferred platform, and the repository includes detailed build instructions for Android, Linux, macOS, and Windows environments.
    Downloads: 27 This Week
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  • 22
    VNote

    VNote

    A pleasant note-taking platform in native C++

    VNote is a Qt-based, free and open-source note-taking application, focusing on Markdown now. VNote is designed to provide a pleasant note-taking platform with excellent editing experience. VNote is NOT just a simple editor for Markdown. By providing note management, VNote makes taking notes in Markdown simpler. In the future, VNote will support more formats besides Markdown. Utilizing Qt, VNote could run on Linux, Windows, and macOS.
    Downloads: 27 This Week
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  • 23
    FocusWriter

    FocusWriter

    Simple fullscreen word processor

    FocusWriter is a distraction-free writing application aimed at writers, students, and professionals who want to immerse themselves fully in the craft of writing without being pulled away by visual clutter or toolbars. It creates a clean, full-screen environment that hides menus and notifications until summoned, helping users concentrate on text with minimal UI interference, and it supports plain-text formats so your work remains simple and portable. The app includes useful writing aids such as daily goals, timers, alarms, and optional typewriter sound effects — features that help users build routines, track progress, or capture bursts of creativity. While minimalist in appearance, FocusWriter also offers enough utility to be practical: customizable themes, auto-save, session statistics, and spell check help manage longer projects while preserving focus.
    Downloads: 26 This Week
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  • 24
    TeXstudio - A LaTeX Editor

    TeXstudio - A LaTeX Editor

    An integrated writing environment for creating LaTeX documents

    NOTE: Active development has moved to https://github.com/texstudio-org/texstudio Please post issues and feature requests there. TeXstudio is a fully featured LaTeX editor. Our goal is to make writing LaTeX documents as easy and comfortable as possible. Some of the outstanding features of TeXstudio are an integrated pdf viewer with (almost) word-level synchronization, live inline preview, advanced syntax-highlighting, live checking of references, citations, latex commands, spelling and grammar. Find out more at our website.
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    Downloads: 665 This Week
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  • 25
    Microsoft Works format import library
    libwps is a Microsoft Works file format import filter based on top of the librevenge (see https://sourceforge.net/p/libwpd/wiki/librevenge/ ). Currently, libwps can import all word processing Works formats since about 1995 with some success. It may also be able to import some basic database and spreadsheet files.
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    Downloads: 343 This Week
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