jsonyaml

jsonyaml.com is a free collection of browser-based tools designed to make everyday developer tasks faster and less frustrating. The goal is simple, help developers, DevOps engineers, and data professionals convert, validate, format, and inspect data without installing extra software or writing one-off scripts. Everything runs directly in the browser, so work can move quickly while data stays on your own machine.

It covers the formats and utilities used daily. Convert between JSON and YAML, transform CSV to JSON, validate and format JSON or YAML, decode JWTs, generate hashes, test regex patterns, parse URLs and query strings, build and read cron expressions, run DNS lookups, resize images, and generate ICO or ICNS files from a PNG. The tools respond instantly, making them practical during real debugging sessions.

In practice, this means…