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Visual flexbox property adjuster — tweak direction, wrap, alignment, gap, and per-item flex values with a live preview.
An interactive CSS Flexbox playground that lets you visually adjust every flex container and flex item property. Change direction, wrapping, justify-content, align-items, align-content, and gap with instant feedback. Toggle per-item controls to set flex-grow, flex-shrink, flex-basis, and align-self for each box. Add or remove items and copy the generated CSS with one click. Everything runs client-side.
Encode and decode Base64 strings in your browser — supports plain text and file uploads with Unicode handling.
Visual gradient editor — pick colors, adjust stops, choose direction, and copy the CSS with one click.
Generate beautiful color schemes from any base color — complementary, analogous, triadic, and more.
CSS Flexbox Playground is a free online tool available on BuildHub. Visual flexbox property adjuster — tweak direction, wrap, alignment, gap, and per-item flex values with a live preview.
This tool is designed for developers, engineers, and technical professionals who want to speed up their daily coding tasks. It runs entirely in your browser — no downloads, no sign-ups, and no data sent to external servers.
Whether you're working on a quick personal project or a professional deliverable, CSS Flexbox Playground helps you get results faster with zero friction.
Yes, 100% free with no hidden costs. You don't need to create an account or provide payment information. Just open the tool and start using it.
Absolutely. CSS Flexbox Playground processes everything directly in your browser. Your input data is never uploaded to our servers or stored anywhere.
Yes. The tool is fully responsive and works on smartphones, tablets, and desktop browsers. No app installation required.