About this tool
Most quick developer chores are one of a handful: format or validate a JSON response, encode or decode Base64 or a URL, read what is inside a JWT, turn a Unix timestamp into a date, convert a number between binary, octal, decimal and hexadecimal, make a UUID, or check a file's SHA-256. Here those eight tools live together. Choose what you want to do at the top: each tab keeps what you pasted while the page is open, and everything runs in your browser, so tokens, payloads and files are not sent to a server. Regex, cron, HTTP status codes and the JSON/YAML/CSV converter keep their own pages, one tap away in the menu.
How to use it
- 1 Choose at the top what you want to do: JSON, Base64, URL, JWT, timestamp, bases, UUID or hash.
- 2 Paste or type your input, or keep the example to see how it works.
- 3 Copy the result, or download it where the tab offers a file.
- 4 Switch tabs at any time: each tool keeps what you pasted while the page is open.
Frequently asked questions
Is what I paste sent to a server?
No. Every tab works in your browser: JSON, tokens, text and files are not uploaded, saved or kept in the page address.
Do the old tool pages still exist?
Yes. JSON formatter, Base64, URL encoder, JWT decoder, timestamp converter, number base converter, UUID generator and hash generator each keep their page, which opens this same box on its own tab.
Where are regex, cron and HTTP status codes?
They have their own pages, linked in the menu above the box, because each one is a reference or a tester with its own layout.
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