every little utility,
one calm place.
Converters, formatters, generators, network tools & compilers. Most run entirely in your browser — fast, free, and private.
★ most used
Format, validate & minify JSON with instant error detection.
browserEncode and decode Base64 for text and files, both directions.
browserDecode a token's header, payload & signature — locally, never sent.
browserGenerate v1, v4 & v7 UUIDs, in bulk if you need.
browserConvert between Unix timestamps and human-readable dates.
browserLive regular-expression matching with a built-in cheatsheet.
browserLook up A, AAAA, MX, TXT, NS & CNAME records for any domain.
serverInspect a site’s TLS certificate: issuer, expiry, SANs & chain.
serverFormatters
Crypto & Encoding
Encode and decode Base64 for text and files, both directions.
browserPercent-encode or decode URLs and query components.
browserDecode a token's header, payload & signature — locally, never sent.
browserMD5, SHA-1, SHA-256, SHA-512 hashes of text, in your browser.
browserGenerators
Generate v1, v4 & v7 UUIDs, in bulk if you need.
browserStrong random passwords with length & character controls.
browserTest any password locally: entropy, crack-time estimate & tips.
browserTurn text, URLs or contact info into a downloadable QR code.
browserConverters
Text & Strings
Live regular-expression matching with a built-in cheatsheet.
browserCompare two blocks of text and highlight the differences.
browserCount words, characters, sentences & reading time.
browserWrite Markdown and see the rendered HTML live, side by side.
browserEveryday
Network
Look up A, AAAA, MX, TXT, NS & CNAME records for any domain.
serverClassify an IP, reverse-DNS it, and locate it geographically.
serverFetch any URL and inspect its status and response headers.
serverInspect a site’s TLS certificate: issuer, expiry, SANs & chain.
server