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Encode &, <, >, ", ' and non-ASCII characters as HTML entities for safe rendering. Or decode entities like & back to plain text.
This html encoder & decoder runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
It's defence-in-depth. Real XSS protection requires templating that auto-escapes by default.
Same browser-only philosophy. Free, no signup, no upload.
Percent-encode and decode URLs and query parameters.
Encode and decode Base64 with full Unicode and URL-safe support.
Beautify messy HTML with proper indentation and tag breaks.
Beautify, validate, and minify JSON with sortable keys, exact error positions, and a one-click copy.
Validate JSON syntax with exact line and column for every error.
Strip whitespace from JSON to produce a single compact line.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.