nolanlawson/optimize-js

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

3729 stars · 100 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A JavaScript optimization tool that wraps immediately-invoked and likely-to-be-invoked functions in parentheses to speed up initial parsing and execution in modern JS engines. It is available as both a CLI and a Node.js API, but is now explicitly unmaintained and discouraged by the V8 team.

Use cases

• speed up initial parse time of a JavaScript bundle
• wrap eager IIFEs in parentheses for faster V8 execution
• optimize a minified JS file before deploying to production
• benchmark parse performance of common JS libraries across browsers
• process a JS file from stdin and write optimized output to stdout

When to choose

• targeting legacy browsers like Chrome 55 or Edge 14 where pre-parse heuristics caused slowdowns
• experimenting with historical JS engine parsing behavior
• maintaining a very old build pipeline that already depends on it

When to avoid

• modern web development - V8's preparser changes make it unnecessary or harmful
• you need a maintained tool with ongoing browser benchmark updates
• Safari is a primary target, where it showed a slight regression
• you cannot heavily benchmark your own site to verify benefit

Facets

cli-tool · maturity abandoned

build-tool developer-tools web-development performance developer-tools cli cross-platform javascript-parsing v8-optimization unmaintained performance-optimization nodejs

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