Free web tools
Tools that just work
JSON, HTML, Base64, URLs — every tool runs in your browser. No uploads, no tracking, no signup.
HTML encoder
Paste any text, we convert special characters to HTML entities.
HTML decoder
Paste encoded HTML, we turn entities back into the original characters.
HTML viewer
Paste HTML, see it rendered live in a sandboxed iframe.
JSON beautifier
Paste compact JSON, get clean, indented output.
JSON validator
Paste JSON, we tell you if it's valid and where it breaks.
JSON minifier
Paste pretty JSON, we strip whitespace and shrink it down.
URL parser
Paste any URL, we break it down into its parts.
Base64 encoder
Paste text, we convert it to Base64.
Base64 decoder
Paste Base64, we decode it back to text.
UUID generator
Click generate, get a fresh v4 UUID, or 100 at once.
Word counter
Paste text, see live counts and estimated reading time.
URL slug generator
Paste a title, get a clean URL slug.