Sweep an AABB through voxels or a tileset and find collisions

A durable, cluster-safe scheduler. You give it rules like "run this every Monday at 09:00" or "run this once at midnight on New Year's Eve", and it makes sure the work actually runs, at the right time, and (as close as a distributed system can get) exactl

Callback wrapping utility

Extended JS Map with Array-like methods

Support for representing 64-bit integers in JavaScript

Keeps a local copy of an atproto space in sync: writer set discovery, operation log replay, LtHash reconciliation and CAR recovery

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

The Node.js `util.deprecate()` function with browser support

Get the command from a shebang

Use node's fs.realpath, but fall back to the JS implementation if the native one fails

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

Rampart — client-side PII redaction for AI assistants: deterministic recognizers + a 14.7 MB ONNX classifier (transformers.js), default-deny policy, and reversible placeholders. Runs entirely in the browser.

Trace frame rate lag with a sexy performance radar

Get the visual width of the widest line in a string - the number of columns required to display it

css-line-break ==============

An arbitrary-precision Decimal type for JavaScript.

a simple svg path generation utility

JavaScript parser, mangler/compressor and beautifier toolkit

Resolve the path of a module like `require.resolve()` but from a given path

A cross browser microtask library