A collection of tools.

Writing

Capitalize English Title

URL Slug Generator

Markdown (CommonMark) syntax

Table of Contents of Markdown content can be generated using the Markdown All in One Visual Studio Code extension.

Programming

URL Decoder

JWT tool

Format JSON

echo '{"name":"John", "age":30, "car":null}' | python3 -mjson.tool

Epoch & Unix Timestamp Conversion

Networking

IP Address Lookup

IP Subnet Calculator

Others

Campaign URL Builder for Google Analytics

A tool to build URL containing utm_source, utm_medium, and utm_campaign. (Note that, There parameters will stop working on July 1, 2023. Use Google Analytics 4 property instead. URL builder for GA 4.)