bark signs Nostr events through a NIP-07 interface backed by NIP-46 remote signing.
Open source
24 alternativesdanmakustr
danmakustr adds decentralized scrolling comments to YouTube videos through a Chrome extension based on Nostr.
About danmakustr
danmakustr is a Chrome extension that displays decentralized scrolling comments, called danmaku, on YouTube videos. Each danmaku is published as a Nostr event and stored and shared through Nostr relays. Users can click a danmaku to open its corresponding video and reply to it with the extension. The author also provides a web page that displays all danmaku.
The extension can be installed from the Chrome Web Store or built from source. Users can run their own relay, either the author's desktop relay for non-technical users or a server relay built with Node.js and PostgreSQL. The project is open source under the MIT license. The author states that there are currently not many users, so there are few danmaku. Several planned features, including a configurable relay list, custom danmaku colors and display modes, private key login, history, reactions, and downloads, are listed as to-do items and are not described as available.
Key features
- Displays scrolling danmaku comments on YouTube videos
- Stores each danmaku as a Nostr event on relays
- Click a danmaku to open its video and reply
- Web page that displays all danmaku
- Optional self-hosted relay: desktop app or Node.js and PostgreSQL server
Best for: Chrome users who want to try Nostr-based scrolling comments on YouTube, especially those willing to run their own relay.
Good for
- Open source under the MIT license
- Can be installed from the Chrome Web Store or built from source
- Includes a desktop relay option for non-technical users
Watch out for
- Works only with YouTube, according to the project description
- Several planned features are still listed as to-do items, including reactions, history, and downloads
- The author notes few users and therefore few danmaku at present
danmakustr at a glance
- Category
- Social & Communities › Nostr
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Browser extension
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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danmakustr FAQ
How do I install danmakustr?
It can be installed from the Chrome Web Store. It can also be built from source: clone the repository, run npm install and npm run build, then load the build folder as an unpacked extension in chrome://extensions with developer mode enabled.
Do I need to run a relay?
Relays store and propagate the danmaku events. The author describes running your own relay as an option and links to two relay implementations, one for desktop and one for servers.
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