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Top 12 CSS Usercss Projects
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SaaSHub
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dark-gitlab
Very customizable dark theme for GitLab and self-hosted GitLab instances. Mirror of gitlab.com/vednoc/dark-gitlab (by vednoc)
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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).
CSS Usercss discussion
CSS Usercss related posts
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Is there some dark mode option on the browser website ?
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Can I remove Lastfm Cookie sign? it won't go away, it's becoming annoying.
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why does my font look like this?
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Any new tools you know?
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last fm is more addictive when it’s in dark mode
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What an odd little happenstance!
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Dark messegner theme needed
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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 Usercss projects in CSS? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | GitHub-Dark | 9,907 |
| 2 | StackOverflow-Dark | 690 |
| 3 | Wikipedia-Dark | 489 |
| 4 | dark-gitlab | 83 |
| 5 | UserCSS | 76 |
| 6 | GitHub-FixedHeader | 62 |
| 7 | DarkNight-FBMessenger | 49 |
| 8 | lantern-theme | 43 |
| 9 | stylus-UserCSS | 24 |
| 10 | hacker-news-bluish-gray | 13 |
| 11 | Youtube.usercss | 12 |
| 12 | 4chan.usercss | 10 |
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