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Coding
About Code Playground
Run HTML, CSS, and JavaScript together with instant preview. Ideal for quick prototypes, debugging snippets, and sharing reproducible examples without a local build setup.
FAQ
Which languages can I run?
Client-side HTML, CSS, and JavaScript with live preview.
Do I need a build step?
No. Everything runs in-browser.
More tools
JSON Formatter/Validator
Format, validate, and minify JSON code with syntax highlighting.
Base64 Encoder/Decoder
Encode or decode Base64 strings with instant results.
CSS Minifier
Minify CSS code to reduce file size and improve load times.
Regex Builder
Visually construct regex patterns using readable rules and live previews.