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Publisher

OnceWorks Tools

OnceWorks Tools publishes 3 live listings in the Chrome Web Store, with 13 users between them, as of our catalog pass of 2026-10-30.

Live listings
3
Users between them
13
Trader status (EU)
Declared itself a trader under EU rules (DSA).
In our catalog since
2026-08-31

Its listings

  1. MomentNotes: Timestamped YouTube Notes with Markdown Export Productivity · Education · 3 permissions, 1 site pattern · version 1.1.1 · updated 2026-10-20 8 users
  2. ProofStamp: Screenshot to PDF with URL and Timestamp Productivity · Tools · 4 permissions, 1 site pattern · version 1.1.1 · updated 2026-10-20 4 users
  3. ChatCellar: Private Archive for ChatGPT and Claude Chats Productivity · Tools · 2 permissions, 3 site patterns · version 1.0.2 · updated 2026-10-28 1 users (last published figure)

Figures come from the public Chrome Web Store, which our own crawler reads up to 2 times a day. We do not install or audit extensions and publish no contact details for their developers. Catalog pass of .

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Where the data comes from: how the catalog is built