Flexbox Froggy
Play flexboxfroggy on flexboxfroggy.com: flexbox exercises game to guide frogs with justify-content, align-items, and flex-direction—10 levels.
Explore Flexbox Labs to experiment with CSS flex properties visually, tweak container and item settings, and copy the resulting Flexbox CSS.

Use Flexbox games, grid generators, and motion helpers on Uwarp when the job is not a free Flexbox playground.
Details below the decision summary—features, workflow, and scope notes.
Reviewed on 20 August 2026 · Flexbox Labs — official site
Visual Flexbox controls
Adjust flex container and item properties and see layout updates immediately.
CSS copy-out
Generate Flexbox CSS you can paste into stylesheets or design-dev handoff notes.
Learning by experimentation
Try justify-content, align-items, gap, and related props without writing a full page first.
Browser-only lab
No install—open the playground and start tweaking layouts.
Open the playground
Visit Flexbox Labs in the browser and load the default flex demo.
Tweak container props
Change direction, wrap, justify, and align settings while watching the preview.
Adjust items
Experiment with grow, shrink, basis, and order on individual flex children.
Copy CSS
Copy the generated rules into your project, then refine in your editor.
Front-end beginners
Build intuition for Flexbox props before memorizing every value.
UI engineers
Quickly prototype alignment and spacing decisions for component layouts.
Design-to-dev handoff
Translate visual layout intent into Flexbox CSS for implementation reviews.