Spatra
A browser extension and companion dashboard for capturing anchored notes, highlights, and drawings on web pages and PDFs.
Open productWhat it does
About Spatra
Spatra is a browser extension and companion web dashboard engineered for reading and annotating digital documents. It allows users to highlight text, attach notes, and draw directly over web pages or PDF files. All annotations stay anchored to the specific passage where they were created. Designed with a privacy-conscious architecture, Spatra stores data locally on the user's device first while offering JSON/Markdown exports and two-way synchronization with Obsidian.
- Availability:
- launched
- Access:
- freemium
- Format:
- software
- Platform:
- browser extension
- Platform:
- web
Pricing at launch: Spatra offers a free local plan along with a Pro subscription priced at $5 per month or $48 per year.
Core capabilities
In-Context Web & PDF Annotation
Highlight passages, write inline notes, and sketch directly on web pages and PDF files.
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