Read. Learn. Study remotely.

A powerful knowledge manager for web pages, textbooks, PDFs, to read and study with remotely.

Supports tagging, annotating, highlighting, keeping track of your reading progress, and makes it effortless to remember what you've learned. By yourself or in groups.

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Main Polar PDF document showing an deep learning book

Effortless Reading and Learning

Discovery why Polar is the new standard for reading and learning. Easily manage your reading, track progress, annotate, auto-convert to flashcards, and learn using spaced repetition.

Organize your Reading

All your documents in one place, synchronized across all your devices, tagged, highlighted, and secure.

Remember Effortlessly

Direct flashcard integration and spaced repetition make your reading enjoyable without having to worry about remembering the important parts.

Incremental Reading

Read multiple documents in parallel and manage a queue of documents. Track your reading progress and pick up where you left off.

All Your Documents in One Place

All your PDFs, eBooks, and web content are kept in one place - the Document Repository. Once you're done reading a document it can be archived and is hidden by default but can be referenced at any time.

Polar Document Repository for all your PDFs and eBooks

Annotations Viewer to Track your Highlights and Notes

Polar includes an integrated annotation viewer to keep track of all your notes. Search, filter by tags, and sort all your highlights, comments, and figures in one place.

Polar Annotation Viewer

Manage your Reading Queue with Incremental Reading

Your queue can be managed by both flags and tags. The document repository shows the progress of each document and you can filter by tags to narrow down what you want to read next.

Document Repository filtering by tag

Track Your Reading Progress

Polar supports integrated statistics to keep track of your reading. Set a goal per per day and make sure you're making long term progress.

Polar Reading Progress

Integrated Document Viewer

Polar's integrated document viewer means you have the best reading experience possible. We support PDF, HTML and highlighting, and commenting so you never leave a state of flow while learning.

Polar Reading Progress

Highlight and Annotate

Annotations are a central feature to Polar. While reading documents you can underline text or create area highlights. Once created, you can attach additional metadata to annotations such as comments and flashcards.

Polar supports text annotations

Desktop, Web, and Fully Cloud Aware

Polar is fully cross-platform and supported on MacOS, Windows, Linux, Chrome, Firefox, and Safari.

Polar is also fully cloud-aware and supports synchronizing your documents across multiple devices. Based on Google's Firebase, Polar supports real-time synchronization of your documents to other devices.

But we don't stop there. Polar also supports the web so you can access your data anywhere.

If you just want to keep your data locally we won't force you to use the cloud. Polar allows you to work local and offline without using any cloud resources whatsoever.

Polar supports all platforms including MacOS, Windows, Linux, and Firefox.

Captured (and Offline) Web Content

Polar supports reading and annotating HTML documents. We call this process 'capturing' content and we store the document permanently in your own private archive.

Since most pages aren't designed for reading and have ads, chrome, and other annoyances within the page, we render the content as a tablet device to make the content more readable.

Browser emulation

Emulate multiple browsers and mobile content to make sure pages captured are rendered properly.

Personal Archive

All content is stored in a personal archive which allows you to refer back to important documents and view annotations over time.

Captured Content

Integrated Annotations Sidebar

All annotations are easily accessible in the sidebar. You can create flashcards, add comments, and jump to any text highlight in the main document at any time.

Annotation Sidebar

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