regex tester — whittly

/ /g

— enter a pattern // client-only

// matches appear here

// matches

— enter a pattern above

// reference −

characters

digit 0–9

non-digit

word char

non-word

whitespace

non-whitespace

any (not \n)

newline

tab

anchors

line start

line end

word boundary

non-boundary

quantifiers

0+ greedy

1+ greedy

0 or 1

exactly n

n to m

0+ lazy

1+ lazy

groups & sets

capture

non-capture

lookahead

neg lookahead

char set

negated set

or

curl -sX POST 'https://api.whittly.dev/v1/regex/test' \
  -H 'Authorization: Bearer $WHITTLY_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"pattern":"\\d+","flags":"g","input":"order 42"}'

const res = await fetch('https://api.whittly.dev/v1/regex/test', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer ' + apiKey,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ pattern: "\\d+", flags: "g", input: "order 42" }),
});
const data = await res.json();

const { data } = await axios.post(
  'https://api.whittly.dev/v1/regex/test',
  { pattern: "\\d+", flags: "g", input: "order 42" },
  { headers: { Authorization: 'Bearer ' + apiKey } }
);

// prosaved patternspro·history syncproupgrade →

[{"name":"timestamp converter","slug":"timestamp-converter","desc":"unix ↔ date, iso 8601, utc, relative","cat":"convert","icon":"ti-clock-2"},{"name":"csv ↔ json","slug":"csv-json","desc":"convert csv to json and back, auto-detect delimiter","cat":"convert","icon":"ti-table"},{"name":"xml ↔ json","slug":"xml-json","desc":"parse xml into json and back","cat":"convert","icon":"ti-arrows-shuffle"},{"name":"number base converter","slug":"number-base-converter","desc":"decimal, binary, octal, hex and any custom base","cat":"convert","icon":"ti-number"},{"name":"json formatter","slug":"json-formatter","desc":"prettify, minify, validate, tree view","cat":"format","icon":"ti-braces"},{"name":"base64","slug":"base64","desc":"encode and decode, text or file","cat":"encode","icon":"ti-binary"},{"name":"url encoder","slug":"url-encoder","desc":"percent-encode and decode url components","cat":"encode","icon":"ti-link"},{"name":"hash generator","slug":"hash-generator","desc":"sha-1, sha-256, sha-384, sha-512 via web crypto","cat":"encode","icon":"ti-shield-lock"},{"name":"html entity encoder","slug":"html-entity-encoder","desc":"escape and unescape html special characters","cat":"encode","icon":"ti-code"},{"name":"bcrypt","slug":"bcrypt","desc":"hash and verify passwords with bcrypt","cat":"encode","icon":"ti-lock"},{"name":"jwt decoder","slug":"jwt-decoder","desc":"decode tokens, inspect claims","cat":"encode","icon":"ti-key"},{"name":"uuid generator","slug":"uuid-generator","desc":"v4, v7, nanoid, custom","cat":"generate","icon":"ti-fingerprint"},{"name":"password generator","slug":"password-generator","desc":"configurable length, charset, entropy score","cat":"generate","icon":"ti-password"},{"name":"text diff","slug":"text-diff","desc":"line-level diff between two texts","cat":"text","icon":"ti-file-diff"},{"name":"case normalizer","slug":"case-normalizer","desc":"camelCase, snake_case, kebab-case, PascalCase and more","cat":"text","icon":"ti-letter-case"},{"name":"regex tester","slug":"regex-tester","desc":"live match highlighting, explain mode","cat":"text","icon":"ti-regex"},{"name":"slug generator","slug":"slug-generator","desc":"url-safe slugs from any text, supports cyrillic","cat":"text","icon":"ti-slash"},{"name":"string inspector","slug":"string-inspector","desc":"length, bytes, unicode, entropy, character frequency","cat":"text","icon":"ti-text-scan-2"},{"name":"cron parser","slug":"cron-parser","desc":"translate schedules to english","cat":"data","icon":"ti-clock-bolt"},{"name":"curl converter","slug":"curl-converter","desc":"convert curl to fetch, axios, python requests","cat":"data","icon":"ti-terminal"},{"name":"query string parser","slug":"query-string-parser","desc":"parse and build url query strings","cat":"data","icon":"ti-list"},{"name":"mime lookup","slug":"mime-lookup","desc":"find the right mime type for any file extension","cat":"data","icon":"ti-file-type"}]