Parse, resolve, and stringify SAN (Standard Algebraic Notation) chess moves. Strict TypeScript.

An algebraic notation driven chess engine that can validate board position and produce a list of viable moves (notated).

Play chess in your terminal against the Stockfish Online API, with arrow-key menus and algebraic-notation input.

Convert chess algebraic notation into a standard json output

Convert natural language descriptions of chess moves to algebraic notation and vice versa

An algebraic notation driven chess engine that can validate board position and produce a list of viable moves (notated).

Use space and slash separated color notation in CSS

Specification for interoperability of common algebraic structures in JavaScript

Big number implementation in pure javascript

Transform objects to MongoDB update instructions

Utility for modifying / processing the contents of Javascript objects or arrays via object notation strings or globs.

Format numbers for human consumption.

Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware encoding of JSON for LLM prompts

🐊Putout plugin applies dot notation

Create and animate hand-drawn annotations on a web page

Use hwb() color functions in CSS

very fast object redaction

Create and animate hand-drawn annotations on a web page

Use 4 & 8 character hex color notation in CSS

Underscore mixins for deeply nested objects