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實用工具

Excalidraw
Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
Excalidraw
Carbon
Carbon is the easiest way to create and share beautiful images of your source code.
Carboncarbon_app
Crontab.guru - The cron schedule expression editor
An easy to use editor for crontab schedules.
The cron schedule expression editor
CIDR.xyz
Interactive IP address and CIDR range visualizer
Yuval Adam
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
regex101Firas Dib
cheat.sh/:firstpage
JWT.IO
JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
Auth0
Convert curl commands to code
Utility for converting cURL commands to code
curlconverterNick Carneiro
JSON to Go Struct
An online playground to convert JSON to Go Struct