JS library that allows you to easily serialize and deserialize data with BigInt values

Modern, typed, zero-dependency reader for EDF, EDF+, BDF and BDF+ biosignal files. Works in browsers and Node with true random access.

Playwright reporter that outputs structured JSON for LLM agents. Minimal console output, flat schema, easy to filter to failures.

Find, read and parse the package.json of the parent module

Resole and parse `tsconfig.json`, replicating to TypeScript's behaviour

High-performance JSON Pointer implementation

Balena config.json manipulation utilities

deterministic JSON.stringify() with custom sorting to get deterministic hashes from stringified results, with no public domain dependencies

deterministic `JSON.stringify()` - a faster version of substack's json-stable-strigify without jsonify

Create and modify PDF files with JavaScript

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Enables developers to use a unified Postman Collection format Object across projects

Fast implementation of JSON-Patch (RFC-6902) with duplex (observe changes) capabilities

Support for proto3 JSON serialiazation/deserialization for protobuf.js

Zero-dependency spreadsheet engine. Read & write XLSX, CSV, ODS. Schema validation, streaming, tree-shakeable. Pure TypeScript, works everywhere.

An object-oriented command-line parser for TypeScript

A unique way to work with a binary file in the browser and the server.

Full BCP 47 language subtag data from the official IANA repository, in JSON format with multiple indices.

This Package converts Html Document to Json and vice-versa.

Read JSON from stdin and output a value from the JSON