What is the Flexbox Generator?
Build flex layouts and copy the CSS. The Flexbox Generator is a free online tool that works instantly in your browser — no installation, no signup and nothing to upload. It sits alongside other CSS tools on DevNibble such as CSS Formatter, CSS Gradient Generator, CSS Minifier.
How to use the Flexbox Generator
- Choose the options you want.
- Click Generate to create your output.
- Copy or download the results.
Features
- Runs 100% in your browser — your data is never uploaded or stored.
- Free forever, with no account, no ads and no tracking.
- Copy or download your result in one click.
- Fast and responsive on desktop, tablet and mobile.
Frequently asked questions
Is the Flexbox Generator free to use?
Yes — Flexbox Generator is completely free with no sign-up, no ads and no limit on how many times you can use it.
Is my data private when I use the Flexbox Generator?
Everything happens locally in your browser. Your input is never sent to a server, which makes Flexbox Generator safe to use with private or sensitive data.
How do I use the Flexbox Generator?
Choose your options and click Generate. Every result can be copied with a single click.
Are the generated values unique?
Flexbox Generator generates fresh values locally each time you run it, using secure randomness where it matters. Build flex layouts and copy the CSS.