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UUvolix
โœฆ DEVELOPER TOOLS ยท 7 FREE TOOLS

Free online developer tools

Format, minify and validate JSON with the exact line and column of any error, encode and decode Base64 or URL strings, generate strong random passwords and create static QR codes that never expire.

About Uvolix Developer Tools

Every developer tool runs locally in your browser, including the password generator, which uses your browser's secure random number generator. API payloads, tokens and passwords are not sent to Uvolix.

Step-by-step guides

Frequently asked questions

Is it safe to paste JSON or tokens here?

The tools run in your browser and do not upload what you paste. As a general rule, still avoid pasting live production secrets into any website.

Do the QR codes expire?

No. The QR Generator creates static codes that contain your text or link directly, so they keep working without any Uvolix service.

Which URL encoding is used?

URL Encoder uses form encoding: spaces become "+" and other reserved characters become percent-encoded, matching PHP urlencode. URL Decoder reverses it.