Spring v0.1.0: The Nostr Browser

Spring is a nostr browser that lets its users to browse and interact with the nostr protocol and micro app ecosystem.

Spring v0.1.0: The Nostr Browser
  • "This is the first public Android release, we're submitting to the Play Store, but an APK is ready for you to try - click here to download."
"We believe this category of a Nostr-specific browser is a very powerful tool for all the nostriches and bitcoiners. It takes the experience of using Nostr micro-apps to the next level, and should help accelerate the adoption of non-social Nostr use cases."
  • "If you hesitate to paste your nsec into the app, we totally get it - just use your (or someone else's) npub to log in and look around. However, if you do add your real keys - those are handled by a separate library, stored in an encrypted form and protected by the Android keystore, inaccessible to any JS code, immune to XSS or app-level bugs."
  • "IMPORTANT: nostr apps running inside the browser tabs can sign events and decrypt private messages without a confirmation screen and your explicit permission - do not use apps you don't trust until we implement proper app permission management."


  • add nsec keys or npubs, switch between keys;
  • browse various interesting events on the homepage;
  • trending stuff, suggested profiles, big zaps, highlights, long posts, live streams, nostr web apps;
  • open any event in any web app that supports this event kind and has been published on nostr using NIP-89;
  • open/close/hide the browser tabs, grouped by app/domain;
  • log in inside the opened apps as if you have the 'browser extension' (nip-07 interface injected into tabs);
  • pin apps/tabs to your app "drawer" for fast access;
  • access your contact list at the search page, profiles sorted by recently-accessed first;
  • search through profiles, notes and long posts;
  • tab menu;
  • if there is an event-id/npub in the url of the opened tab, you can zap the event, or open with another app from the menu (more coming soon);
  • context menu;
  • if you long-tap on a link with event-id/npub in the url, you can zap/open-with from the context menu;
  • nostr: links clicked inside a tab are handled by showing a list of apps that support this event (NIP-89);
  • long-tap on a text selection with event-id/npub to open the context menu to zap/open-with;
  • paste a url to the search bar to open it in a new tab;
  • paste an event-id/npub into the search bar to open it in a new tab

What's next

  • key access permission management;
  • reordering of pins in the app drawer;
  • more event kinds on the homepage;
  • search for more event kinds;
  • tab switcher screen;
  • NWC to inject WebLN into tabs;
  • custom feeds on the home screen;
  • custom tab/context menu items;
  • DVMs for translation, transcription etc;
  • and much more!

GitHub Repo
Announcement / Archive