gitwtfhub

wtf is zerithdb?

zerith-labs/zerithdb — explained in plain English

Analysis updated 2026-05-18

54TypeScriptAudience · developerComplexity · 3/5LicenseSetup · easy

TL;DR

ZerithDB lets you build offline-capable, real-time collaborative web apps by storing data in the browser and syncing peer-to-peer, with no backend server needed.

Mindmap

mindmap
  root((zerithdb))
    What it does
      No backend needed
      Local first storage
      P2P sync
      Keypair auth
    Tech stack
      TypeScript
      IndexedDB
      WebRTC
      CRDT
    Use cases
      Collaborative apps
      Offline apps
      Solo dev projects
    Audience
      Developers
      Small teams

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Why would anyone build with this?

REASON 1

Build a shared to-do list or note-taking app that works offline and syncs when users reconnect.

REASON 2

Create a real-time collaboration tool without setting up or paying for backend servers.

REASON 3

Add passwordless, keypair-based authentication to a web app.

REASON 4

Ship a fully functional product quickly as a solo developer or small team.

What's in the stack?

TypeScriptIndexedDBWebRTCCRDTReactPython

How it stacks up

zerith-labs/zerithdbavijit07x/git-switchcryptosaras/tokenward
Stars545454
LanguageTypeScriptTypeScriptTypeScript
Setup difficultyeasymoderateeasy
Complexity3/54/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Project is in alpha status, so APIs may still change between releases.

Permissive Apache 2.0 license, use freely including commercial use, with patent protection.

Wtf does this do

ZerithDB is a platform for building web applications without a traditional backend server. Normally, when you build an app that stores data and lets multiple users interact, you need a server running somewhere in the cloud, a machine that manages the database and syncs everyone's changes. ZerithDB removes that requirement entirely. Instead, data is stored directly in the user's browser, using a built-in browser storage system called IndexedDB, and when users need to sync their data with each other, their browsers communicate directly with each other in a peer-to-peer fashion, similar to how BitTorrent works. To handle the classic problem of two people editing the same thing at the same time and conflicting, ZerithDB uses a technology called CRDTs, or Conflict-free Replicated Data Types, a mathematical approach where changes always merge cleanly without requiring a central authority to resolve conflicts. The system also includes its own authentication approach: instead of passwords or email accounts, each user gets a cryptographic key pair, similar to how cryptocurrency wallets work. You would use ZerithDB when you want to build a collaborative or offline-capable web application, think shared to-do lists, note-taking apps, or real-time collaboration tools, but don't want the cost or complexity of managing servers and cloud databases. It appeals to solo developers or small teams who want to ship a fully functional product quickly. The project is written in TypeScript and is in alpha status, meaning the API may still change. Integration packages are available for React and Python as well.

Yoink these prompts

Prompt 1
Show me how to set up a ZerithDB app with a synced todos collection using zerithdb-sdk.
Prompt 2
Explain how ZerithDB's CRDT sync avoids conflicts between two users editing the same data.
Prompt 3
How does ZerithDB's peer-to-peer sync work without a central server?
Prompt 4
Walk me through adding keypair authentication with ZerithDB instead of passwords.

Frequently asked questions

wtf is zerithdb?

ZerithDB lets you build offline-capable, real-time collaborative web apps by storing data in the browser and syncing peer-to-peer, with no backend server needed.

What language is zerithdb written in?

Mainly TypeScript. The stack also includes TypeScript, IndexedDB, WebRTC.

What license does zerithdb use?

Permissive Apache 2.0 license, use freely including commercial use, with patent protection.

How hard is zerithdb to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is zerithdb for?

Mainly developer.

View the repo → Decode another repo

This repo across BitVibe Labs

Don't trust strangers blindly. Verify against the repo.