The Chrome extension

Save anything in one click.

Articles, videos, podcasts, tweets, PDFs. One button sends whatever you have open to your library, ready when you write.

Free to start

One-click save

From open tab to usable source.

Click save and the pipeline reports in as it works: Sidelong reads the page, transcribes any audio or video, writes a summary, and files it in your library. By the time you look up, it's done.

01Saves in seconds, processing runs on its own
02Live progress on every step
03Everything lands searchable and citable
Sidelong
This pageHow I Remember Everything I Readyoutube.com/watch?v=AjoxkxM_I5g
Reading the page
Transcribing the video
Summarizing
Added to your library

Select to highlight

Highlight the web like a book.

The lines that stop you mid-read are the ones you'll want when you write. Highlight them and they join your library with the source attached, resurface while you draft, and are ready to quote. Come back to the page and they're still waiting.

01Keep the best lines from everything you read
02Your highlights resurface while you write
03Quote them in drafts, source already attached
essays.example.com

The Quiet Craft of Marginalia

Readers have always talked back to their books. The margins are where reading becomes thinking. The habit survived the printing press without much trouble.

Digital reading promised to bring the habit back, and in a narrow sense it did. Highlights sync everywhere now, but they rarely return at the moment they would matter.

Every format

If you can open it, you can save it.

The extension captures the page exactly as you see it, so it saves what you can see, even behind a login. Videos and podcasts come in with full transcripts.

01Articles, newsletters, and PDFs
02YouTube videos with full transcripts
03Tweets and threads, Reddit, Hacker News, Bluesky
04Your whole Kindle notebook, imported in one click
Library0
PodcastMay 5, 2026
Summarizing

Essentials: Understand & Improve Memory Using Science-Based Tools

podcasts.apple.com/us/podcast/essentials-understand-improve-memory
YouTubeJul 7, 2026
Summarizing

How I Remember Everything I Read

youtube.com/watch?v=AjoxkxM_I5g
ArticleJul 8, 2026
Summarizing

How to Remember What You Read

fs.blog/remember-books

The popup

Your library, one click from any page.

The popup knows where you are. On a saved page it shows the summary and key insights in place, plus related items already in your library. Notes and ideas capture from anywhere, and your Kindle notebook imports in one click.

01Summary and insights for the page you're on
02Notes and ideas, with the page attached when you want
03Related items from your library, surfaced as you browse
Sidelong.

This page

Select text to highlight

How to Remember What You Read

fs.blogSaved

View summary and insights

Related items in your library

How I Remember Everything I ReadVideo · Ali Abdaal
Essentials: Understand & Improve Memory Using Science-Based ToolsPodcast · Huberman Lab

Quick actions

01Saved linksReopen anything you've saved recently.
02NotesJot a thought as you browse.
03IdeasCapture a writing idea while it's fresh.
04Kindle highlightsImport your books and highlights from Amazon.

Free to start

Your knowledge is your advantage. Start using it better.

Sign up in a minute. Save your first source in one click.

Get started