ReadToRelay by Vinney

Read any web page in a clean reader view, then publish it to Nostr as long-form Markdown signed with your own key. Your secret key never leaves your device.

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About this extension

ReadToRelay extracts the readable content of a web page and lets you publish it to Nostr as long-form Markdown (kind 30023), signed with your own nsec.

How it works:

Click the ReadToRelay toolbar button on any article, blog post, or documentation page.
Read the extracted content in a clean, distraction-free reader view with dark mode and adjustable font size.
Log in with your nsec (stored locally in your browser only).
Click "Post to Nostr". The article is converted to Markdown, given the appropriate long-form tags, and broadcast to the relays you choose.

Features:

Clean reader view with light and dark themes and adjustable font size
HTML to Markdown conversion
Configurable relay list and post tags
Your nsec is stored locally and only used to sign events on your device
Posts include the original source URL, title, byline, and a link back to the project

ReadToRelay is open source under the Unlicense: https://github.com/vcavallo/ReadToRelay

Developer comments

ReadToRelay is a Manifest V3 extension. It vendors three libraries at the repository root (nostr-tools, turndown, and Mozilla's Readability), so a source package is included with this submission.

Reviewers: run npm ci && npm run vendor (Node 22+) in the uploaded source to regenerate all three vendored files byte-for-byte:
- nostr-tools.js — verbatim copy of lib/nostr.bundle.js from the nostr-tools@2.16.2 npm package
- turndown.js — lib/turndown.browser.umd.js from turndown@7.2.0, wrapped as an IIFE global by esbuild@0.28.1 (exact command in scripts/vendor.js)
- readability.js — verbatim copy of Readability.js from mozilla/readability @ a07e62c8abfc64b06a28b48dfc76f4150796ed63

npm run build then assembles dist/firefox (this package) and dist/chrome from the same source; only the manifest differs. No remote code is loaded at runtime: all scripts are bundled in the package. The only network activity is WebSocket connections to the Nostr relays the user configures, and only when the user clicks "Post to Nostr".

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