Su

A reader for thinking

Su turns any article into a calm, full-screen reading space, and gives you somewhere to think while you are in it.

Highlight what matters. Put your reaction in the margin beside it. When you are done reading, export the whole trail of thinking into your own notes app, where it belongs to you.

Coming to the Chrome Web Store, currently in review

Reading

An article open in Su, with two highlights and a margin note — No ads, no sidebars, no page chrome. Set the font, size, spacing, width and theme once.

Highlight, then say why

Select text and pick a color. Click a highlight to write a note in the margin beside the line that provoked it.

Colors are categories

Key idea, action, evidence, question, or whatever you actually think in. Rename them to suit the piece.

Thoughts about the whole piece

Double-click any empty margin for a note that isn't tied to a single line.

Your reading stays yours

No account, no sync, no ads. Your highlights, notes and articles never leave your computer.

Exporting

Su's export panel, showing send, copy and download options — Copy as Markdown or rich text, download a file, print to PDF, or send straight into Obsidian.

Notes from Su arriving in Obsidian, grouped by category — Your notes arrive grouped by the categories you named, with the passages they belong to.

A workspace, not an archive

Su holds a piece while you are working on it, then gets out of the way. A page stays for 7 days after the last time you add to it, so working on something keeps it alive and re-reading it does not. After that its notes are set aside for another 7 days, where you can still take them back, and then they are deleted.

Su warns you before that happens. But exporting is how thinking leaves Su, and the exported copy is the one that lasts.