NiteLight | customizable PDF DarkMode by Lumex
Customizable darkmode with Presets, Works on native PDF viewer | 1-click to save your eyes | Website theming (beta) | Auto Blue-light filter | Free, No sign-in, On-Device
Extension Metadata
Screenshots
About this extension
🌗Customizable darkmode made for PDFs with Presets for nerds.
1-click to save your eyes !
Works directly in your browser’s native PDF viewer.
🆓 100% Free • No sign-in • Lightweight
⚙ Setup : Install → open a PDF → turn on NiteLight.
No complicated setup required.
📄 Made for PDFs
NiteLight lets you comfortably read PDFs in your browser with customizable dark-mode presets.
• Works with browser’s native PDF viewer
• Multiple presets for different document types and preferences
• Customize colors, brightness, and contrast
No problem pulling those long reading sessions.
PDF demo: https://youtu.be/zjQdqaGCPJI?utmsource=AMO
🌐 Dark mode for websites
Use NiteLight beyond PDFs with:
• Dynamic website filtering • Website Dynamic Filter: Works on any site.
• Custom theme presets
• Custom CSS filters: Add support for your favorite website yourself.
• Website theming (beta)
🌅 Blue-light filter
Reduce blue light automatically based on sunrise and sunset, or customize it to your preference.
♿Accessibility
• Accessibility tool for people with vision problems like color correction, reduce brightness.
• Can emulate E-Ink
🔥 Why NiteLight?
Unlike generic dark-mode extensions, NiteLight is built for reading.
📄 PDF: works directly in the browser’s native PDF viewer.
🎨 Highly customizable: use presets or create your own look.
🌐 Works beyond PDFs: apply your presets and filters to websites too.
🌅 Time-aware: automatically adjust blue light around sunrise and sunset.
⚙ Presets to suit any type of document/website, any time of day.
🎛 Highly customizable.
One extension for PDFs, websites, and your preferred reading environment.
🔐 Security & Privacy
• 0 Tracking or Data collection.
• Runs 100% on-device.
• No account required
1-click to save your eyes !
Works directly in your browser’s native PDF viewer.
🆓 100% Free • No sign-in • Lightweight
⚙ Setup : Install → open a PDF → turn on NiteLight.
No complicated setup required.
📄 Made for PDFs
NiteLight lets you comfortably read PDFs in your browser with customizable dark-mode presets.
• Works with browser’s native PDF viewer
• Multiple presets for different document types and preferences
• Customize colors, brightness, and contrast
No problem pulling those long reading sessions.
PDF demo: https://youtu.be/zjQdqaGCPJI?utmsource=AMO
🌐 Dark mode for websites
Use NiteLight beyond PDFs with:
• Dynamic website filtering • Website Dynamic Filter: Works on any site.
• Custom theme presets
• Custom CSS filters: Add support for your favorite website yourself.
• Website theming (beta)
🌅 Blue-light filter
Reduce blue light automatically based on sunrise and sunset, or customize it to your preference.
♿Accessibility
• Accessibility tool for people with vision problems like color correction, reduce brightness.
• Can emulate E-Ink
🔥 Why NiteLight?
Unlike generic dark-mode extensions, NiteLight is built for reading.
📄 PDF: works directly in the browser’s native PDF viewer.
🎨 Highly customizable: use presets or create your own look.
🌐 Works beyond PDFs: apply your presets and filters to websites too.
🌅 Time-aware: automatically adjust blue light around sunrise and sunset.
⚙ Presets to suit any type of document/website, any time of day.
🎛 Highly customizable.
One extension for PDFs, websites, and your preferred reading environment.
🔐 Security & Privacy
• 0 Tracking or Data collection.
• Runs 100% on-device.
• No account required
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Read and modify bookmarks
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.2.0
- Size
- 125.53 KB
- Last updated
- 11 days ago (Aug 23, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
- Tags
- Add to collection