Free Developer Tools — JSON, Base64 & Timestamps in One Page
Instead of bouncing between separate sites for a JSON formatter, a Base64 encoder, and an epoch timestamp converter, this page keeps all three in one tabbed toolkit. Everything runs on JavaScript already built into your browser — no data is sent anywhere.
Frequently Asked Questions
Is this JSON formatter free to use?
Yes — the JSON formatter, Base64/URL encoder-decoder, and timestamp converter are all free with no signup.
Is my data uploaded anywhere?
No. JSON formatting, Base64/URL encoding, and timestamp conversion all run in your browser using built-in JavaScript — nothing is sent to a server.
What's a Unix timestamp?
A Unix (epoch) timestamp is the number of seconds since January 1, 1970 UTC — a common way computers store and exchange dates. Paste one into the Epoch tab to see it as a readable date.