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Top 23 dark-theme Open-Source Projects
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Back in invoice-app/. Install Oicana alongside Mantine for the UI:
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Project mention: Dark Reader – Browser extension that generates dark mode for web pages | news.ycombinator.com | 2026-03-21
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Project mention: Introducing LlamaStash: a zero-overhead, terminal-native llama.cpp launcher | dev.to | 2026-06-02
Five themes plus custom. Catppuccin Macchiato is the default because of course it is.
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Project mention: µCSS: I built a full-featured CSS framework on top of PicoCSS | dev.to | 2026-03-11
I ended up choosing PicoCSS. It's beautiful, semantic, accessible, and weighs only 11KB. Most HTML elements look great with zero CSS classes. For simple projects, it's perfect.
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I’m excited to share PyUIkit 1.0.0, a modern, web-style GUI framework for Python built on top of CustomTkinter. It brings Div-based layouts, reusable components, and an easy way to create interactive desktop apps without messy layout code.
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Windows-Auto-Night-Mode
Automatically switches between the dark and light theme of Windows 10 and Windows 11
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next-themes
Perfect Next.js dark mode in 2 lines of code. Support System preference and any other theme with no flashing
Project mention: Modern Next.js Essentials: Building Scalable Full-Stack Applications | dev.to | 2026-04-16When using shadcn/ui, it's common to use next-themes to handle light, dark, and system theme switching.
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material-kit-react
React Dashboard made with Material UI’s components. Our pro template contains features like TypeScript version, authentication system with Firebase and Auth0 plus many other
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I use the Minimal theme with its companion settings plugin. The name is accurate. It strips back the visual chrome, improves typography, and keeps the focus on the content. I've turned off most of the optional visual styles and left it close to its defaults.
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notepad4
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, bundled with file browser plugin matepath.
Project mention: New Windows 11 build adds self-healing "quick machine recovery" feature | news.ycombinator.com | 2025-07-13Use the newest fork, https://github.com/zufuliu/notepad4. That's what I switched to when Microsoft started bloating up Notepad.
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Project mention: I couldn't find an Ayu Mirage theme for JetBrains — so I built an aesthetic engine instead | dev.to | 2026-03-27
I didn't have to search far for the starting palette. The official Ayu website already had its syntax colors beautifully presented — each one with a purpose, a name, and a hex value. Those became the first accent presets. Warm orange, cool blue, lime green — all native to the Ayu DNA.
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halfmoon
Halfmoon is a highly customizable, drop-in Bootstrap replacement. It comes with three built-in core themes, with dark mode support for all themes and components.
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night-owl-vscode-theme
🌌 NIGHT OWL: A VS Code dark theme for contrast for nighttime coding, 🦉 LIGHT OWL: a daytime light theme
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cState
🔥 Open source static (serverless) status page. Uses hyperfast Go & Hugo, minimal HTML/CSS/JS, customizable, outstanding browser support (IE8+), preloaded CMS, read-only API, badges & more.
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GitHub Repository: minimal-ui-kit/material-kit-react
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
dark-theme discussion
dark-theme related posts
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I couldn't find an Ayu Mirage theme for JetBrains — so I built an aesthetic engine instead
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Dark Reader – Browser extension that generates dark mode for web pages
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Why Tailwind Won (And What That Means for Traditional CSS) 🐍
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Show HN: TerabyteDeals – Compare storage prices by $/TB
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Show HN: Cybercore CSS – Cyberpunk Design System
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On Getting Hacked
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Common Lisp, ASDF, and Quicklisp: packaging explained
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source dark-theme projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | mantine | 31,213 |
| 2 | darkreader | 22,054 |
| 3 | catppuccin | 19,259 |
| 4 | pico | 16,639 |
| 5 | CustomTkinter | 13,383 |
| 6 | GitHub-Dark | 9,907 |
| 7 | Windows-Auto-Night-Mode | 9,459 |
| 8 | next-themes | 6,289 |
| 9 | material-kit-react | 5,586 |
| 10 | obsidian-minimal | 5,122 |
| 11 | notepad4 | 4,698 |
| 12 | ayu | 4,410 |
| 13 | aura-theme | 3,795 |
| 14 | halfmoon | 3,125 |
| 15 | QDarkStyleSheet | 3,078 |
| 16 | theme.park | 3,054 |
| 17 | night-owl-vscode-theme | 2,943 |
| 18 | cState | 2,868 |
| 19 | material-kit-react | 2,766 |
| 20 | indigo | 2,725 |
| 21 | Sun-Valley-ttk-theme | 2,552 |
| 22 | PVEDiscordDark | 2,545 |
| 23 | qbt-theme | 2,086 |
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