ctrodb: A Client-Side Database for TypeScript — Zero Dependencies

I've been working on ctrodb — a client-side database for TypeScript that runs in the browser (IndexedDB) and Node.js (in-memory). Zero runtime dependencies. It started as a personal project to stop rewriting IndexedDB wrappers. Every new client-side app needed the same boilerplate: open a connection, create object stores, handle version upgrades, write CRUD helpers. After the sixth time, I wrote it once and got it right. What it does ctrodb gives you MongoDB-like CRUD with schema validation at write time: import { Database } from " ctrodb " const db = new Database ({ name : " my-app " , schema : { version : 1 , collections : { notes : { fields : { title : { type : " string " , required : true }, body : { type : " string " }, pinned : { type : " boolean " , default : false }, tags : { type : " array " , items : { type : " string " } }, createdAt : { type : " string " , default : () => new Date (). toISOString () }, }, indexes : [{ field : " createdAt " }], }, }, }, }) await db . connect () const notes = db . collection ( " notes " ) const note = await notes . create ({ title : " Hello " , body : " World " }) const results = await notes . query () . where ( " pinned " , true ) . sort ({ createdAt : " desc " }) . limit ( 10 ) . fetch () Every record is a Model — a Proxy wrapper with typed field access. note.title works. note.update() handles writes. Direct property assignment logs a warning telling you to use .update() instead. What's included The core package ships with three plugins: Full-text search — inverted index, stop word removal, auto-indexed on create/update/delete Relations — has_many, belongs_to, has_one with lazy accessors built into every Model and eager loading via .with() Custom validation — extendable rules beyond the built-in validators (email, URL, regex) Plus React hooks (separate import, same package): import { DatabaseProvider , useQuery , useMutation } from " ctrodb/react " Signal-based reactivity. When data changes, useQuery re-fetches and your