JSON cleanup·Base64·URL conversion·UUID tool

Provides string conversions often needed in API requests and test data. JSON format checking, UTF-8 Base64 conversion, and URL component encoding serve different purposes. Checking the format of the input before conversion can reduce double encoding and data corruption.

{ }Developer

JSON formatter↗

Sort your JSON nicely and check its grammar.

64Developer

Base64 converter↗

Encode and decode text including Hangul.

wwwDeveloper

URL encoder↗

Safely convert the characters in the address.

IDDeveloper

UUID generator↗

Generate as many version 4 UUIDs as needed.

Check before use

If numeric identifiers are very large, treat them as JSON strings.
Base64 is not encryption, so do not use it as a means of confidentiality protection.
Encode parameter values one by one instead of the entire URL.

Recommended operation sequence

JSON formatter — Sort your JSON nicely and check its grammar.
Base64 converter — Encode and decode text including Hangul.
URL encoder — Safely convert characters in addresses.
UUID generator — Generate as many version 4 UUIDs as needed.

Input is processed by the browser. Check out the scope and examples of each tool and use the results.