Capture From Browser by Precompute
Capture Title, URL and Selection to a local server.
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About this extension
This is a Web Extension (for Firefox / Chrome / Chromium) that extracts the current page title, url and highlighted text and sends it to a local server. This allows the you to "capture" the content you highlight in a local file.
Website: https://precompute.github.io/capture-from-browser/
Source Code (GPLv3): https://github.com/precompute/capture-from-browser/
Feature Requests, Bug Reports and Pull Requests are always welcome!
Ideal for note-taking and saving highlights to a personal file / exobrain.
The extension POSTs the following JSON to (selected port)/api/capture, which the user should write a server against:
The github repo contains a simple server in golang as well.
Website: https://precompute.github.io/capture-from-browser/
Source Code (GPLv3): https://github.com/precompute/capture-from-browser/
Feature Requests, Bug Reports and Pull Requests are always welcome!
Ideal for note-taking and saving highlights to a personal file / exobrain.
- Easily change default port
- Markdown toggle (boolean flag sent to backend)
- Keyboard shortcuts
- Textbox for additional context
- Local log of previous requests (no selection data logged)
- Completely Private: local-only, open source (GPLv3)
The extension POSTs the following JSON to (selected port)/api/capture, which the user should write a server against:
"source_url": "string",
"page_title": "string",
"selection_text": "string",
"selection_html": "string",
"context": "string",
"markdown": boolean,
"timestamp": "ISO8601"
The github repo contains a simple server in golang as well.
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Permissions and data
Required permissions:
- Access your data for all websites
Optional permissions:
- Access your data for localhost
- Access your data for 127.0.0.1
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.9
- Size
- 55.04 KB
- Last updated
- a month ago (Feb 21, 2026)
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