NostrComments



Overview
The comment section no website can close. A thread on every page, kept on Nostr relays.
The comment section no website can close. NostrComments puts a thread on every web page and keeps it on public Nostr relays, not on the site, so the site cannot remove it. No account, no email, no tracking, and no server of ours in between. Nothing is sent anywhere until you switch it on. WHAT IT IS FOR - Warning the next visitor: a shop that never delivered, a seller who vanished, an offer that is too good to be true. One comment already helps the next person, even if nobody ever replies. - Discussing the news on sites that closed their comment section. - Adding context to a company announcement, a government page or a press release. SEE IT BEFORE YOU INSTALL IT This extension asks to run on every site you visit, which is a lot to grant something you have not seen. So you can read a thread without installing anything: https://briskness-byte.github.io/thread/ — paste any address and it shows the comments filed under it, queried from the same public relays, straight from your browser. GETTING STARTED No account needed. Click the button and generate a key in one tap — your identity is a cryptographic keypair stored in your browser. Already use Nostr? Connect a signer extension like Alby or nos2x and keep your existing identity. COMMENT AND DISCUSS - Reply threads, up- and down-votes, and zaps over Lightning - Comments posted since your last visit are marked "new", and you are notified of replies to you - What the wider Nostr network has said about the page shows too, not only comments written here - Share a comment to your Nostr feed, so people without the extension can see it YOUR PRIVACY - No account, no server, no analytics; a key you generate stays in this browser, optionally password-protected - Pictures and avatars can wait until you ask for them - Turn it off per site, or use quiet mode to show the button only where there are comments - Your history stays on your device, searchable from the toolbar button YOUR CONTROL - Mute people and words; repeated comments from one key are folded into one line - Delete your own comment (relays that honour the request drop it) - Use the Nostr signer you already have (Alby, nos2x), or take your key to any other Nostr app - Optional verified names, with a "speaks for example.com" label for a site's own key - Your own relays, dark mode, and the button in whichever corner suits each site Open source (MIT): github.com/briskness-byte/NostrComments DATA DISCLOSURE NostrComments has no server and the developer receives no data. There is no account, no tracking, and no analytics. Nothing is transmitted until you explicitly enable the extension on a one-time disclosure screen. After that: - Loading and posting comments: the current page URL, your comment or vote, and your Nostr public key are sent to the public Nostr relays you have configured. These are independent third-party servers, not operated by NostrComments. Since v22.53 a relay is only contacted once a page has actually been read — never for a tab you did not look at. - Extra relays for what you post (on by default, posting only): a comment held by a single relay is gone the day that operator decides so, which defeats the point of the extension. So what you post also goes to three relays that are never read from or queried - purplerelay.com, relay.nostrplebs.com and nostr.bitcoiner.social. They receive exactly what your own relays receive, plus your IP address as any contacted server does, and learn nothing about pages you only read. It can be switched off in Settings. - Deleting your own comment: a signed deletion request naming it is sent to those same relays. It is a request; relays that honour it drop the comment, and some will not. - Identifying yourself to a relay (NIP-42): some relays refuse to serve anything until a client proves which key it is. When one of yours does, a short signed event is sent that tells that relay your public key. Only ever in reply to an actual refusal, never because a relay offered. - Verified names (NIP-05), off by default: if you switch it on, the extension asks the domain a commenter claims whether that name really belongs to that key. That domain — a third party other than your relays — then sees your IP address. Off unless you enable it in Settings. - Profile pictures and images in comments: these load from whichever server the person who posted them chose, which gives that server your IP address and browser version. For an avatar that happens on every page where that person has commented. This is how Nostr clients generally work and the developer is not involved, but it is a third party you did not pick. Since v23.0.2 these requests withhold the page address (no-referrer) and load only as they come into view, so that third party is not told which page you are reading. - Zapping (optional): if you choose to send a Lightning tip, your browser contacts the recipient's Lightning provider to fetch an invoice, and your own wallet pays it. That provider sees the request, including your IP address. No payment code is bundled and no money passes through the developer. - Stored on your device only, never transmitted: your key (optionally encrypted with PBKDF2 + AES-GCM), relay list, muted users and words, per-site disable list, per-site button position, theme, which signer to use, whether verified names are checked, whether the extra publishing relays are used, your consent choice, a flag recording that you confirmed your key backup, a flag recording that you were offered key encryption, a flag recording that a support zap was sent, and a list of the last 300 pages where you opened the panel, used to mark comments as "new". Full privacy policy: github.com/briskness-byte/NostrComments/blob/main/PRIVACY.md
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Details
- Version23.10.10
- UpdatedOctober 26, 2026
- Offered byNostrComments
- Size129KiB
- LanguagesEnglish
- Developer
Email
56eldk4os@mozmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
NostrComments has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
NostrComments handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site