Developer Tools
Cron explainer, regex tester, JWT decoder, UUID and SHA hash generators, Unix timestamps and cURL → fetch.
- Cron Expression: Every 10 minutesThe cron expression for every 10 minutes is “*/10 * * * *” — every 10 minutes. See the next run times and copy it.
- Cron Expression: Every 12 hoursThe cron expression for every 12 hours is “0 */12 * * *” — at minute 0 past every 12 hours. See the next run times and copy it.
- Cron Expression: Every 15 minutesThe cron expression for every 15 minutes is “*/15 * * * *” — every 15 minutes. See the next run times and copy it.
- Cron Expression: Every 2 hoursThe cron expression for every 2 hours is “0 */2 * * *” — at minute 0 past every 2 hours. See the next run times and copy it.
- Cron Expression: Every 30 minutesThe cron expression for every 30 minutes is “*/30 * * * *” — every 30 minutes. See the next run times and copy it.
- Cron Expression: Every 5 minutesThe cron expression for every 5 minutes is “*/5 * * * *” — every 5 minutes. See the next run times and copy it.
- Cron Expression: Every 6 hoursThe cron expression for every 6 hours is “0 */6 * * *” — at minute 0 past every 6 hours. See the next run times and copy it.
- Cron Expression: Every day at 9amThe cron expression for every day at 9am is “0 9 * * *” — at 09:00. See the next run times and copy it.
- Cron Expression: Every day at midnightThe cron expression for every day at midnight is “0 0 * * *” — at 00:00. See the next run times and copy it.
- Cron Expression: Every hourThe cron expression for every hour is “0 * * * *” — at minute 0 of every hour. See the next run times and copy it.
- Cron Expression: Every mondayThe cron expression for every monday is “0 0 * * 1” — at 00:00 on monday. See the next run times and copy it.
- Cron Expression: Every sunday at midnightThe cron expression for every sunday at midnight is “0 0 * * 0” — at 00:00 on sunday. See the next run times and copy it.
- Cron Expression: Every weekday at 9amThe cron expression for every weekday at 9am is “0 9 * * 1-5” — at 09:00 on weekdays (monday to friday). See the next run times and copy it.
- Cron Expression: Every weekendThe cron expression for every weekend is “0 0 * * 6,0” — at 00:00 on sunday and saturday. See the next run times and copy it.
- Cron Expression ExplainerPaste a cron expression to get a plain-English explanation and the next run times. Supports ranges, steps, lists, month/day names and @macros.
- Cron Expression: First day of every monthThe cron expression for first day of every month is “0 0 1 * *” — at 00:00 on day 1 of the month. See the next run times and copy it.
- cURL to Fetch ConverterConvert a cURL command into a JavaScript fetch() call with method, headers, JSON body and basic auth. Runs locally.
- JWT DecoderDecode a JWT’s header and payload and read iat/exp/nbf as dates — entirely in your browser, so tokens never leave your machine.
- Regex for Date (YYYY-MM-DD)A practical regular expression for matching date (yyyy-mm-dd)s in JavaScript, with a live tester to try it on your own text.
- Regex for Email AddressA practical regular expression for matching email addresss in JavaScript, with a live tester to try it on your own text.
- Regex for Hex ColourA practical regular expression for matching hex colours in JavaScript, with a live tester to try it on your own text.
- Regex for IPv4 AddressA practical regular expression for matching ipv4 addresss in JavaScript, with a live tester to try it on your own text.
- Regex for Phone NumberA practical regular expression for matching phone numbers in JavaScript, with a live tester to try it on your own text.
- 🇬🇧 Popular in United KingdomRegex for UK PostcodeA practical regular expression for matching uk postcodes in JavaScript, with a live tester to try it on your own text.
- Regex for URLA practical regular expression for matching urls in JavaScript, with a live tester to try it on your own text.
- Regex TesterTest JavaScript regular expressions live: highlighted matches, capture groups and indexes. Includes ready-made patterns for email, URL, IP, dates and more.
- Unix Timestamp ConverterConvert Unix timestamps (seconds or milliseconds) to human dates in any time zone, or ISO dates back to epoch time.
- UUID GeneratorGenerate cryptographically random version 4 UUIDs, one or up to 100 at a time, with crypto.randomUUID(). Copy all in one click.