The best open source alternative to Notepad++ is Geany. If that doesn't suit you, our users have ranked more than 100 alternatives to Notepad++ and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Notepad++ are Kate, Vim, VSCodium and gedit.
Notepadqq is designed from developers, for developers. With its more than 100 supported languages, it is the ideal text editor for your daily tasks.
It is the program most like Notepad++ For Linux
A lots of common functions with Notepad++, but slower...
Lite XL is a lightweight text editor written mostly in Lua — it aims to provide something practical, pretty, small and fast, implemented as simply as possible; easy to modify and extend, or to use without doing either.
TextMate brings Apple's approach to operating systems into the world of text editors. By bridging UNIX underpinnings and GUI, TextMate cherry-picks the best of both worlds to the benefit of expert scripters and novice users alike.
Notepad3 is a fast and light-weight text editor with syntax highlighting for programming jobs. Auto-completion, Multi-language, Dark mode more.
Very serios contender to npp. Developed by the dude that also gave us SynWrite. Very Cool
Cudatext is great, but it NOT working out of the box is the big letdown. You need to faff first and nobody got time for dat....
Considering that most text editors are eather too heavy or look too old, the author came up with Notepads, designed to be a modern-looking UWP app.
Lightweight, open-source code editor for Windows, Mac, and Linux featuring Vim keybindings, built-in Git support, agentic AI editing with multiple models, syntax highlighting, LSP for intelligent completion, fast performance, and efficient workflows.
Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.
SciTE is a SCIntilla based Text Editor. Originally built to demonstrate Scintilla, it has grown to be a generally useful editor with facilities for building and running programs. It is best used for jobs with simple configurations - I use it for building test and demonstration...
A simpler version of Notepad++. Supports all the jazz you'll need: syntax higlighting, it's clever with Tabs, mass renaminc, etc. No macros though.
A simple and hackable notepad.
A powerful IDE for data science, Zasper excels with massive concurrency support, enabling numerous simultaneous connections, minimal memory usage, and speedy performance. Suited for REPL-style data apps like Jupyter notebooks, fully supported on Mac with limited Linux support.
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For those looking to replace Notepad++'s UI and functionality with a similar editor but on Linux, this is by far the most similar to Notepad++. The other alternatives are similar in the sense that they are code/text editors but not that they look abnd work the same.