Universal Themer by Mahdi Rashidi
Apply 100 curated light and dark themes to any webpage, with contrast, saturation, warmth and text-tint controls.
Extension Metadata
About this extension
Give any website a look you enjoy without breaking its layout.
What you get
- 100 curated themes, dark and light, with search and filters
- Applied instantly to the current page, and remembered for next time
- Fine-tuning sliders: contrast, brightness, saturation, warmth, text tint and border strength
- One click to go back to the default look
Private by design
- No account, no server, no analytics, no network requests
- Your choices are stored only in this browser
Universal Themer is free. You can support it from the link inside the popup.
What you get
- 100 curated themes, dark and light, with search and filters
- Applied instantly to the current page, and remembered for next time
- Fine-tuning sliders: contrast, brightness, saturation, warmth, text tint and border strength
- One click to go back to the default look
Private by design
- No account, no server, no analytics, no network requests
- Your choices are stored only in this browser
Universal Themer is free. You can support it from the link inside the popup.
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access your data for all websites
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.3
- Size
- 100.97 KB
- Last updated
- 21 days ago (Oct 14, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
- Add to collection