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Notepad3 vs Notepad4: catalog facts
Notepad3	Notepad4
Free Free to download and use, with source code published on GitHub.	Free Free and open source.
Windows	Windows
Small memory footprint and fast start Syntax highlighting and code folding	Lightweight and quick to start Syntax highlighting, code folding and auto-completion for many languages
Windows only Far fewer features and plugins than a full IDE	Windows only Single-document design rather than a tabbed or project-based editor
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.