Explainers
Tools that parse and decode complex formats into plain English. Paste in an expression, token, or pattern — get back a clear, structured explanation with examples and next steps.
All explainers tools
Cron expression explainer→
Parse any cron expression. Get the plain-English meaning, field breakdown, and next run times.
Regex tester→
Test regular expressions with live match highlighting and capture groups.
JWT decoder→
Decode and inspect JSON Web Token headers and payloads.
HTTP status codes→
Look up any HTTP status code with explanation and common causes.
MIME type lookup→
Find the MIME type for any file extension, or the reverse.