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 Home » Freeware Downloads » Programming, Coding & Software Development » Notepad3 v5.21.1129.1   
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Notepad3 v5.21.1129.1

A free text editor for simple programming tasks.

Although the Windows operating system was updated significantly over the past years. However, the default Windows Notepad has not been updated in 20 years. If you need a text editor for simple programming tasks, using the vanilla Windows Notepad just does not cut it. Enter Notepad3!

Therefore, we created Notepad3 with all the features that the default Windows Notepad currently lacks. Notepad3 is a fast and light-weight Scintilla-based text editor with syntax highlighting. It has a small memory footprint, but is powerful enough to handle most programming jobs.

Basic Notepad3 Features

Furthermore, Notepad3 has the following features: code folding, bracket matching, automatic indentation, word auto-completion, convert character encoding between various formats (ASCII, UTF-8, and UTF-16), newline format conversion (between DOS (CR/LF), Unix (LF), and Macintosh (CR) formats), multiple undo or redo, bookmarks, and regular expression-based find and replace.

Supported Languages

Previously we mentioned that Notepad3 can handle almost any programming job and we are not lying. Just take a look at the list of supported programming languages below and spot your favorite.

It offers syntax highlighting support for Apache, ASP, Assembly, AutoHotkey, AutoIt3, AviSynth, Awk, Bash, BAT, C, C++, C#, CGI, CMake, CoffeeScript, CSS, CSV, D, DIFF, Go, HTML, INF, INI, Inno Setup, Java, JavaScript, JSON, LaTeX, Lua, Makefiles, Markdown, MATLAB, Nim, NSIS, Pascal, Perl, PHP, PowerShell, Python, REG, Resource, R-S-SPlus Statistics, Ruby, Rust, Shell, SQL, Tcl, TOML, VB, VBScript, VHDL, XHTML, XML, YAML and improved support for NFO ANSI.

Version 5.21.1129.1 (29 November 2021) Changes


Switching to Philippe Lhoste’s (PhiLho) AutoHotkey (AHK) Lexer.
Migration of Solution/Projects/Src for VS2022.
Switch to Scintilla default idle styling mode (none).
Reverting changes to F/R behavior, correction for empty pattern.
On file restore, do not notify immediately, but check against stored file attributes.
Remove the max win version check for undocumented DarkMode UxTheme methods.
SQL Lexer bright and dark mode highlight color enhanced.
Disable actively file change polling – rely on directory change notification by default.
Allow [Settings2] “FileCheckInverval” to be zero(0), means no active file change polling.
Enable context menu for Statusbar.
Enable context menu for Menubar.
Use “round nearest displayed digit” method for estimated file size display.
Limit file size: 2GB (Until WideCharToMultiByte() / MultiByteToWideChar() INT32_MAX issues are clarified).

CHANGES Versions in Tools or Libraries:


Correction of a typo for command “Gui” in AutoHotkey (AHK) Lexer.
Sync with current Oniguruma v7.0(ß) dev.
Some other findings on the positioning of multi-instance launch.
Relaunch multi instances: don’t cascade if pos param already defined.
Positioning on separate instance launch.
Positioning multi instance launch.
Don’t clear occurrence markers for unchanged search pattern.
Correction to VS2019 project settings.
Find/Repl wildcard pattern handling.
Find/Repl dialog – empty search string should have no match (blue).
Wrong format for reporting number of replaced occurrences “In Selection”.
“grepWinNP3” not intended switching file size search settings (GRE).
Key “Favorites=(path)” not added in “Setup” version.
“grepWinNP3” not intended switching “AllSize” settings (GRE).
Don’t save default values for Caret and Whitespace.
SQL Lexer dark mode highlight default colors.
Disabled menu items if settings file itself is locked by file change notification.
Over paint annoying menu-bar bottom line.
Dark-mode system menu bar coloring (except bottom line).
Correction of some wrong keyboard shortcut (Alt+ Up, Alt+ Down).
Translucency (alpha) settings for white-space indicator.
Dark mode aware auto-completion-list-box.
Goto-Dialog: digit grouping of line/column numbers.
Digit grouping for replace occurrences result dialog.
Better hyperlink style in dark themes “Dark” and “Obsidian”.
Initial factory window position.
Web-Action commands should use also user-defined app to open hyperlinks.
Reset background color for “visible whitespace” if not defined.


Remove deprecated “AutoReloadTimeout”.
Remove Old and deprecated Notepad3 and grepWin icons.


Afrikaans (af-ZA).
Belarusian (be-BY).
Chinese Simplified (zh-CN).
Chinese Traditional (zh-TW).
Dutch (nl-NL).
English (en-GB).
French (fr-FR).
German (de-DE).
Greek (el-GR).
Hindi (hi-IN)
Hungarian (hu-HU).
Indonesian (id-ID) (incomplete…).
Italian (it-IT).
Japanese (ja-JP).
Korean (ko-KR).
Polish (pl-PL).
Portuguese (pt-PT).
Portuguese Brazilian (pt-BR).
Russian (ru-RU).
Slovak (sk-SK).
Spanish (es-ES).
Spanish Latin America (es-419) (incomplete…).
Swedish (sv-SE).
Turkish (tr-TR) (incomplete…).
Vietnamese (vi-VN) (incomplete…).

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Downloads Views Developer Last Update Version Size Type Rank
1,968 3,898 Rizonetech Pty Ltd. <img src=""border="0"> Dec 06, 2021 - 12:29 5.21.1129.1 11.29MB ZIP 5/5, out of 35 Votes.
File Tags
Notepad3    v5.21.1129.1  
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