NSC Labs
Chrome Extension

TagPivot

Tag and weight websites while browsing to build a personal knowledge graph of your web history. Data stays local by default.

Local-first No tracking scripts MV3 Export + delete

What it does

Tagging

Add one or more tags to the current site/page while you browse. Tags are yours; there is no shared taxonomy.

Weighting

Optionally add a weight (importance / relevance) so your own history becomes sortable beyond recency.

Graph view

Over time, TagPivot builds relationships between tags and domains. The goal is recall and organization, not recommendation.

Note: TagPivot is intentionally simple. It avoids background syncing and remote analytics so the data model remains understandable.

Installation

Chrome Web Store

Install the published extension.

Chrome Web Store listing

Developer mode

Load the extension from source.

# 1) Clone
git clone https://github.com/newssourcecrawler/tagpivot.git

# 2) Chrome → Extensions → Developer mode → Load unpacked
# Select the extension directory

Privacy

This section is the TagPivot extension privacy policy.

Effective date: 2026-03-05

Data collection

TagPivot does not collect, transmit, sell, or share personal data.

The extension can analyze page content locally in your browser to compute tag relationships (for example: bridges and counterpoints). No page content, browsing data, or user identity is sent to external servers.

Local storage

TagPivot stores derived metrics locally using Chrome extension storage (chrome.storage.local). This may include tag labels, weights, aggregate counts, and structural scores needed for functionality.

All stored data remains on your device. You can remove it at any time by uninstalling the extension or clearing extension storage.

Permissions

TagPivot requires access to the current page to apply tags and compute local relationships. This access is used solely for on-device computation and is never transmitted externally.

Third parties

TagPivot does not use analytics services, advertising services, tracking scripts, remote code, or external APIs.

Changes

If permissions or storage behavior change, the release notes will describe what changed and why.

Site-wide privacy statement: /privacy.html

GitHub

Source code, releases, and issue tracking live on GitHub.

Pricing

TagPivot is currently distributed as a simple extension. Pricing is a placeholder until a paid feature set exists.

Free

Local tagging + weights + basic exploration.

Pro (placeholder)

Optional: rules-based tagging, richer export formats, longer history windows.

Team (placeholder)

Optional: shared tag presets and controlled syncing (only if you choose to add it).

Contact

Questions or privacy concerns: nsc@newssourcecrawler.com

← Back to homepage