Visulima is a comprehensive TypeScript developer platform — production-ready packages for CLI tools, file I/O, error handling, APIs, and more.

Welcome to Visulima

Visulima is a collection of 40+ production-ready TypeScript packages that solve real problems — from building CLI tools and bundling libraries, to handling errors, working with file systems, and creating APIs.

Every package is:

TypeScript-first with full type safety
Zero or minimal dependencies where possible
Cross-runtime — Node.js, Bun, Deno, and Edge support
Well-tested and maintained in a single monorepo

Quick Start

Install any package with your preferred package manager:

pnpm add @visulima/<package-name>

Popular Packages

Cerebro

Extensible CLI framework

Pail

Configurable logger for Node.js, Edge and Browser

FS

Human-friendly file system utilities

Error

Enhanced error handling with AI-powered solutions

String

Comprehensive string manipulation

Browse by Category

CLI & Terminal

Build command-line tools, format output, and manage colors

Data & Utilities

String manipulation, object utilities, deep cloning, and more

File System

File I/O, path handling, config parsing, and caching

API & Web

REST APIs, pagination, OpenAPI generation, and HTML utilities

Error Handling

Error parsing, source maps, debugging overlays, and inspection

Dev Tools

Dev toolbar, Prisma tools, and bundling

Project Links

GitHub Repository — Source code, issues, and contributions
Changelog — Release history and breaking changes
All Packages — Full package directory with descriptions

Contribute to our work and keep us going

Community is the heart of open source. The success of our packages wouldn't be possible without the incredible contributions of users, testers, and developers who collaborate with us every day.Want to get involved? Here are some tips on how you can make a meaningful impact on our open source projects.

Getting Started