Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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thiserror
A derive macro for ergonomic, zero-boilerplate custom error types in Rust.
anyhow
Flexible, idiomatic error handling for Rust applications with a single concrete error type.
Collision
Beautiful command-line error reporting for PHP apps and test suites
zod-validation-error
Turns raw Zod validation issues into clear, human-readable error messages.
serialize-error
Serialize and deserialize JavaScript Error objects into plain, JSON-safe objects and back.
error-stack-parser
Cross-browser JavaScript library that parses Error objects into structured stack frames with function names, file paths, and line/column numbers.
slog-multi
Compose Go's log/slog handlers into fanout, routing, failover, and load-balancing pipelines.
ajv-errors
Custom, human-readable error messages for Ajv JSON Schema validation
boom
HTTP-friendly error objects for building consistent, well-formed API error responses in Node.js.
express-winston
Express.js middleware for request and error logging with Winston
zod-error
Formats Zod validation issues into a single, fully customizable error message string.
SNAFU
An ergonomic Rust error handling library for mapping underlying errors into context-rich, domain-specific error types.
express-async-handler
A tiny wrapper that catches async errors in Express route handlers and forwards them to next().
is-network-error
Checks whether a caught error is a genuine Fetch network failure, normalized across browsers and JS runtimes.
Honeybadger for JavaScript
Universal JavaScript error notifier that reports uncaught exceptions from the browser, Node.js, and AWS Lambda to Honeybadger.io.