A small set of well-considered tools — nothing more, nothing less.
Custom palette with text + background per swatch. Hover any highlight to re-colour or remove it instantly.
Group quotes the way you think. Export any folder as plain text or Markdown.
Pen, line, and rectangle tools for marking up diagrams, screenshots, or PDFs in place.
One link works for everyone — live overlay with the extension, clean gallery without.
Compound interest is interest accumulated from a principal sum and previously accumulated interest. It is the result of reinvesting or retaining interest that would otherwise be paid out.
The effect of compounding depends on the frequency at which interest is compounded and the periodic interest rate which is applied. Therefore, in order to define accurately the amount to be paid under a legal contract with interest, the frequency of compounding (monthly, yearly, etc.) and the interest rate must be specified.
Compound interest is contrasted with simple interest, where previously accumulated interest is not added to the principal amount of the current period.
Send the same link to anyone. What they see depends on whether they have the extension installed.
Your highlights, comments, and tags are pulled out of the original article and presented as readable cards on a Highlighter-branded page.
Click "Open on original page" and your highlights are applied directly to the live article — same colours, same comments, in context.
Compound interest is interest accumulated from a principal sum and previously accumulated interest. It is the result of reinvesting interest.
The effect of compounding depends on the frequency at which interest is compounded.
Contrasted with simple interest, where previously accumulated interest is not added to the principal.
Anyone with the extension can install it, highlight a page, and share a link — instantly. Anyone can open a share link and read the quotes. No email, no password, no profile. Ever.
From study groups working through a science article to research teams annotating a financial report. Or just you, building a personal knowledge garden one quote at a time.
Share key passages from a Wikipedia article with your classmates. Comment on the tricky bits. One folder per course, one link per study session.
Highlight financial reports, research papers, or news pieces with your team. Tag every quote by theme. Export folders as Markdown straight into your shared docs.
Track everything you're reading on a topic. Folders by subject, comments so you remember why each quote mattered, export when you're ready to write something with it.
Install once, then highlight as you read. Everything lives in your own browser storage.
Add Highlighter to Chrome or Edge, pin it to your toolbar. Ready instantly — no account, no sign-in.
Select any text on any page → tap a colour. Saved locally and reappears the next time you visit.
Click Share → name the collection → copy. One short link works for anyone, with or without the extension.
No accounts, no telemetry, no third-party scripts.