Compare different JS minifiers’ output online

In plain words

Compare different JS minifiers' output online is a web tool that lets developers test and compare how various JavaScript minifiers process the same code. Launched in 2014, it helps developers understand the differences in output quality and compression rates across multiple minification tools. The service is useful for anyone working with JavaScript optimization who wants to evaluate which minifier produces the best results for their specific code.

written from the facts on this page · September 2026

• 
  Minified.js – a fully-featured, 4K alternative to jQuery and MooTools2013 · minifiedjs.com · ▲158
• 
  Canvas engines performance comparison – PixiJS, Two.js, and Paper.js2020 · benchmarks.slaylines.io · ▲193

  Render multiple moving rectangles to compare a number of canvas engines.

• 
  CSS & JavaScript Minifier Tool2025 · wagleus.com · ▲13

  Reduce file size without affecting functionality.

• 
  Min.js style compression of tech docs for LLM context2025 · github.com · ▲177

  Min.js Style Compression of Tech Docs for LLM Context - marv1nnnnn/llm-min.txt

• 
  Image comparison slider in 6 lines of JavaScript2025 · muffinman.io · ▲28

  Image comparison component leveraging native HTML range input and a few lines of JavaScript.

• 
  Smaller2018 · ▲85

  Make your websites load faster

• 
  SimCity, but with Permits▲911

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 1d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• 
  Hooked▲836

  A book on how to build habit-forming products

  Life & fun · 2014 · amazon.com

• 
  Bartender▲616

  Organize and hide menu bar items on your Mac

  Life & fun · 2014 · macbartender.com

• 
  Startup Threads▲519

  Ship custom shirts to fans & leads without holding inventory

  Life & fun · 2014 · game-corner.actionflash.com

• 
  Echo by Amazon▲480

  A hands-free speaker you control with your voice

  AI · 2014 · amazon.com

• 
  Withoomph▲456

  Free, beautifully designed logos instantly

  Work · 2014 · canva.com

• MM
  Meet me, I'll buy you coffee▲427

  Life & fun · 2014 · letstalkover.coffee