Index - AI second brain

Index is your personal knowledge home.
Write like you think, save what matters, and find it later in seconds.

Capture anything in one place:

Notes that stay simple

PDFs you can summarize and quiz

Voice recordings turned into clean text

Scans that become searchable

Links, screenshots, and more

Organize without friction:

Notebooks → sections → notes

Mentions and automatic backlinks that connect ideas

Search across everything you’ve saved

And when you need clarity, just ask.
Chat with a note, a PDF, or an entire notebook to get summaries, key points, next steps, and quick quizzes.

Write now. Understand later.
That’s Index.