Local-first utilities
Utilities that process pasted text or local browser values should stay client-side where possible. Server-side helpers are reserved for checks that need public DNS, HTTP, or registry data.
Use lightweight utilities that support privacy, security, browser, and IP troubleshooting workflows. Most utilities run locally in the browser.
Create passwords locally in the browser.
JSON FormatterFormat, validate, minify, and sort JSON locally.
Base64 ConverterEncode and decode Base64 text or small files locally.
QR Code GeneratorCreate URL, text, Wi-Fi, and contact QR codes locally.
CalculatorUse a keyboard-friendly local calculator with history.
Subnet CalculatorCalculate IPv4 CIDR network details.
User-Agent CheckerInspect browser user-agent and hints.
Utilities that process pasted text or local browser values should stay client-side where possible. Server-side helpers are reserved for checks that need public DNS, HTTP, or registry data.
Local utilities process content in the browser unless a page clearly says it uses a server-assisted route.
No. It performs math only and does not check reachability.
No server-side storage is added by the password utility.