neotraverseTraverse & transform objects

Zero-dependency, TypeScript-first, prototype-pollution-safe, ~5× faster and ~6× leaner with the functional API (up to ~10× / ~11× peaks). Still a drop-in for traverse.

Get started

Benchmarks

Blog

🤌

Tree-shakeable

Utility-first named imports, ~2 KB brotli for one walk (`forEach`), up to ~6 KB for the full functional API (no deprecated class). Zero dependencies.

🛡️

Hardened

Prototype-pollution & injection safe on untrusted input, with an opt-in maxDepth DoS guard.

⚡

Fast

The functional API (the default `neotraverse` export) averages ~5× throughput and ~6× less heap per walk vs traverse, peaks around ~10× speed and ~11× memory on core shapes. Import only what you need.

🎹

TypeScript

Types included by default. Throw away the @types/traverse package.

🛸

ESM-first

Modern ESM + a legacy ES2015 CJS/ESM drop-in. Works in browsers, Node and Deno.

🔁

Drop-in

Same API as traverse via `neotraverse/legacy`, or adopt the default `neotraverse` export for named, tree-shakeable functions. See differences from traverse.

Used in production