Small tools that just work. In the browser, and over an API.
3 free tools, no sign-up, nothing uploaded. Need them in your own product? The same functions are one HTTPS call away, 100 calls a day free.
Tools
Cron Expression Explainer
Paste any cron expression and get a plain-English explanation instantly. Supports ranges, steps, lists and @daily/@hourly aliases.
Readability Checker
Free readability score calculator: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog and ARI, plus word count and reading time.
JSON to CSV Converter
Convert JSON arrays to CSV online. Nested objects are flattened with dot notation, quotes are escaped correctly, works with large files.