What stays on your device when you use a browser tool
Which PepsTools utilities run locally, what the contact form stores, and what optional ads do not see.
Guides
Short practical notes for the tools in the catalog. They describe behavior you can check, not rankings or certifications.
Convert Unix timestamps in seconds and milliseconds
Tell second timestamps from millisecond timestamps, and choose the time zone on purpose.
Cron expression syntax, without running a job
The five cron fields, the symbols this generator accepts, and the Quartz extras it refuses.
How to read a JWT without treating it as verified
Decode the header and payload of a JSON Web Token, and keep the signature in the unverified column where it belongs.
How to validate and format JSON without losing the data
A practical way to read a JSON error, fix the first problem, and format the document only after it parses.