Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.

agent multiplexer that lives in your terminal.

A fast, modern and low-memory approach to processing a big JSON

Live quiz plugin for Reveal.js and Sli.dev web presentation frameworks

Native C++ validator built on simdjson and RE2. Hybrid JS codegen with V8 TurboFan optimizations. Up to 94x faster on $dynamicRef, 5.3x on normal schemas, 2,729x faster compilation. Full $dynamicRe…

A TypeScript-first, runtime-agnostic command-line toolkit for building complex CLIs — featuring a command framework, argument parser, interactive prompts, tables, ANSI utilities, and more.

Modern type-safe way of building CLIs

Type-safe combinatorial CLI parser for TypeScript

Offline-first synchronization engine for SQLite and PostgreSQL, built in Rust with column-level CRDTs, authoritative partial replicas, and secure multi- tenancy.

Property-based testing for web and terminal UIs

Compile Zod schemas into zero-overhead validation functions at build time. Works with Vite, webpack, esbuild, Rollup, etc

Paste a TypeScript interface or Zod schema. Get realistic fixture code instantly.

The billing framework for TypeScript. Products in code, handles Stripe, webhooks, and usage state, runs in your app.

Common Expression Language -- specification and binary representation

A safe, zero-dependency expression language for rules, filters, and templates

Typescript and Javascript PDF engine with rich layout and HTML support

Open-source TypeScript framework for building durable, resumable workflows. Supports Node.js and Bun.

PostgreSQL connection pooler, load balancer and database sharder.

A frontend library for rendering interactive timeline visualisations

Emmett - a Node.js library taking your event-driven applications back to the future!

A reference implementation of an event-sourced system that uses PostgreSQL as an event store built with Spring Boot. Fork the repository and use it as a template for your projects. Or clone the rep…

Automatic normalization and data updates for data fetching libraries (react-query, vue-query, trpc, swr, rtk-query and more)

A little language inspired by Rust that compiles to Go

High-performance, zero-dependency Node.js logging engine. 1 billion logs. 67MB memory. Built by Flowrdesk.

A radically modular HTML/CSS rendering engine

a typescript compiler for nestjs that does validation, openapi, sdk and more

Blazingly fast pusher drop-in replacement written in rust