Free Chrome Extension

Highlight the web,
remember everything.

Select any text on any page. Organize it in folders, add notes, and access your highlights from any device — instantly.

Add to Chrome — it's free See features
en.wikipedia.org/wiki/Memory
The ability to retain information depends heavily on active engagement with the material. Highlighting key ideas forces the brain to identify what matters most — a form of elaborative encoding that dramatically improves recall.
Research
Memory
Cognitive Science
What you get

Everything you need.
Nothing you don't.

01

Instant Highlights

Select any text on any webpage. A color menu appears — one click and it's saved forever. No accounts required to start.

02

Smart Folders

Organize highlights by topic, project, or mood. Color-code your folders and find anything in seconds.

03

Personal Notes

Add a thought to any highlight. Your commentary stays attached — even after closing the tab.

04

Cloud Sync

Your highlights live in the cloud. Open any device, any browser — they're all there waiting for you.

05

AI Insights

Ask questions about your highlights. Lumina's AI reads everything you've saved and surfaces what's relevant.

06

Export Anywhere

Export your highlights as Markdown, Anki flashcards, or PDF. Your notes, your format.

How it works

Three steps.
Ten seconds.

1

Select any text

Visit any webpage and select the text you want to remember. Works on articles, documentation, PDFs — everywhere.

2

Pick a color

A small color menu appears next to your selection. Choose a color to categorize your highlight. Done.

3

Find it later

Open the sidebar on any page to see its highlights, or open the Dashboard to browse everything you've ever saved.

Lumina Dashboard
Documents
Interfaces and generics provide first-class alternatives to hacky shader specialization.
docs.shader-slang.org
Research
With advances in graphics cards, new features have been added for increased flexibility.
en.wikipedia.org
Research
Originally, this functionality was achieved by writing shaders in ARB assembly language.
en.wikipedia.org
Genel
The standard chunk of Lorem Ipsum used since the 1500s is reproduced below.
lorem.com
Web Highlighter
Highlights
Page Note
✦ AI
FOLDERS
+ New
📁 Genel
📁 Research 7
📁 Media
📁 Documents 2
📁 Finance
Search...
The ability to retain information depends on active engagement with the material.
wikipedia.org
Highlighting key ideas forces the brain to identify what matters most.
wikipedia.org
A form of elaborative encoding that dramatically improves recall.
wikipedia.org
Sidebar

Your highlights,
in context.

Click the Lumina icon on any page. The sidebar opens and shows every highlight you've made on that page — right where you are, without opening a new tab.

Current page only
Shows only highlights from the page you're on. Always focused, never cluttered.
Live updates
Add a highlight and it appears in the sidebar instantly. No refresh, no delay.
AI tab built in
Switch to the AI tab and ask anything about your saved highlights.
Pricing

Simple, honest pricing.

Start free. Upgrade when you're ready.

Free
$0 / forever

Everything you need to get started highlighting.

Unlimited highlights
3 folders
4 colors
Cloud sync
Export
AI features
Tinted text
✨ Premium
$4.99 / month

For researchers, students, and power readers.

Unlimited highlights
Unlimited folders
Unlimited colors
Cloud sync
Export (MD / Anki / PDF)
AI features
Tinted text

Start highlighting
right now.

Free forever. No account needed to start. Install in 10 seconds.

Add to Chrome — it's free