Labelixa

Render, validate and generate Zebra ZPL label barcodes as PNG/PDF

Official docs outline

Extra Credit builds an outline of Labelixa's docs the first time your work uses it. Until then, start at the official documentation.

JSON 2 JSONP Convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript
JSONbin.io Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps
JSONPlaceholder Fake REST API for testing and prototyping
jstash Save JSON with one request and get a URL; private JSON for each signed-in user of your app
Keyvalue Simple key-value storage REST API for quick prototyping
Kroki Creates diagrams from textual descriptions
License-API Unofficial REST API for choosealicense.com
Litport Free Proxy Live-tested HTTP, SOCKS4, and SOCKS5 proxies with latency, uptime, and geolocation
LiveOrDown Live up/down status of 240+ online services, checked every minute from 3 regions
Logs.to Generate logs
Lua Decompiler Online Lua 5.1 Decompiler
MAC address vendor lookup Retrieve vendor details and other information regarding a given MAC address or an OUI