Notepad4 and matepath

Notepad4 (Notepad2⨯2, Notepad2++) is a light-weight Scintilla based text editor for Windows with syntax highlighting, code folding, auto-completion and API list for many programming languages and documents, it's based on (rewritten in modern C++) Florian's Notepad2 and XhmikosR's Notepad2-mod. matepath is a file browser plugin and based on (rewritten in modern C++) Florian's metapath.

Binaries

Latest development builds (artifacts in Release configuration for each compiler and platform) are available on GitHub Actions and AppVeyor. Or you can build from source, see Wiki.

| GitHub Actions (MSVC, Clang, GCC) | AppVeyor (MSVC, Clang) | | --------------- | -------- | | | |

Screenshots

Changes compared to Notepad2 or Notepad2-mod:

• Support for bookmarks
• Option to mark all occurrences of a word or selection, and show matched count
• Enhanced auto-completion for words and functions
• Context-based auto-completion for some words
• Enhanced auto indentation
• Auto completion for braces, brackets and quotes
• Color preview via CallTip and click CallTip to open color dialog
• Support Base64 encoding and decoding
• Syntax highlighting, code folding and API list for (see built-in file extension list):
  • Plain Text
  • ABAQUS
  • ActionScript for ActionScript 3 and 4.
  • Android Smali, Screenshots
    • javap
    • Jasmin
  • ANSI Art
  • ANSYS Parametric Design Language
  • Assembler, Screenshots
    • MASM
    • GNU Assembler
    • NASM
  • Asymptote Vector Graphics Language, up to Asymptote 2.70.
  • AutoHotkey_L and AutoHotkey_H Script, up to v2.
  • AutoIt3 Script, up to 3.3.16.
  • AviSynth Script, up to AviSynth 2.6, AviSynth+ 3.6, GScript 1.1.
  • AWK, up to GNU AWK 5.3.
  • Batch Script, Screenshots
  • blockdiag, seqdiag, actdiag and nwdiag
  • C#, up to C# 14.0. Screenshots
    • Vala 0.54
  • C/C++, Screenshots
    • Objective-C/C++, Screenshots
    • C Standard Library, up to C23.
    • C++ STL, up to C++23.
  • Cangjie (仓颉), up to Cangjie 2025.
  • CSS Style Sheet, up to March 2026.
    • SCSS Style Sheet, up to Dart Sass 1.50.
    • Less Style Sheet, up to Less 4.1.
    • HSS Style Sheet
  • CMake, up to CMake 3.29. Screenshots
  • CoffeeScript, CoffeeScript 2.7.
  • Common Intermediate Language
  • Configuration / Properties File
    • Apache Configuration File
  • CSV File
  • D, up to D language 2.0.
  • Dart, up to Dart 3.11.
  • Diff/Patch File
  • F#, up to F# 10.0.
  • Fortran, up to Fortran 2023.
  • GN Build, up to GN 2019-03-13.
  • Go, up to Go 1.21.
    • Go+ (GoPlus) and the Q language
  • Gradle, up to Gradle 8.3, Screenshots
  • GraphViz Dot, up to GraphViz 2.49, Screenshots
  • Groovy, up to Groovy 5.0.
  • Haskell, up to GHC 9.6.
  • Haxe, up to Haxe 4.3.
  • HTML, up to WHATWG March 2026. Screenshots
    • ASP
    • ASP.NET
    • JSP
    • PHP
  • INI Configuration File
  • Inno Setup, up to Inno Setup 6.2.
  • Boost Jam, up to Jam 4.4.
  • Java, up to Java 25. Screenshots
    • BeanShell
  • JavaScript, up to ECMAScript 2025 with JSX and Web APIs.
  • JSON and JSON5 Document
  • Julia Script, up to Julia 1.9. Screenshots
  • Kotlin, up to Kotlin 2.3.
  • LaTeX
  • Lisp Script (Common Lisp, Clojure, Scheme, etc.)
  • LLVM IR, up to LLVM 21.
    • MLIR
  • Lua Script, up to Lua 5.5.
  • Makefile, Screenshots
    • nmake
    • gmake
    • Borland bmake
    • qmake
    • ninja
  • Markdown, up to CommonMark 0.31, with following extensions:
    • GitHub Flavored Markdown
    • GitLab Flavored Markdown
    • Pandoc’s Markdown
  • Mathematica and WolframScript
  • MATLAB, Screenshots
    • Octave
    • Scilab
    • Gnuplot
  • Nim Script, up to Nim 2.2.
  • Nullsoft Scriptable Install System, up to NSIS 3.09.
  • OCaml, up to OCaml 5.0.
  • Pascal, Delphi
  • Perl, up to Perl 5.42. Screenshots
  • PowerShell, up to PowerShell 7.2.
  • Python, up to Python 3.14. Screenshots
  • PHP Script, up to PHP 8.5. Screenshots
  • Windows Rescouce Script
  • R, up to R 4.2.
  • REBOL 3 and Red
  • Ruby, up to Ruby 4.0 Screenshots
  • Rust, up to Rust 1.91. Screenshots
  • SAS, up to SAS Viya 2024.06.
  • Scala, up to Scala 3.2.
  • Shell Script
    • Bash likes (sh, bash, dash, ash, zsh, ksh), up to Bash 5.3. Screenshots
    • C Shell (csh, tcsh), up to tcsh 6.24.
    • M4 Macro and Autoconf
  • SQL Query
    • SQL Standard, up to SQL:2016.
    • MySQL, up to MySQL 8.0, MariaDB 10.9.
    • SQLite3, up to 3.44.
    • PostgreSQL, PostgreSQL 14.
    • Transact-SQL, SQL Server 2019.
    • Oracle, Oracle 20, incomplete.
  • Swift, up to Swift 6.2.
  • TCL, Screenshots
  • Texinfo, up to Texinfo 7.1.
  • TOML File
  • TypeScript, up to TypeScript 7.0.
  • Visual Basic, VB.NET, VB 6.0 and VBA
  • VBScript
  • [VHDL](t