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Developer Tools guides
4 practical guides about developer tools, with the free tools that go with them.
2 min read
HEX, RGB and HSL Colour Codes Explained (With Converter)
What HEX, RGB and HSL colour codes mean, how to convert between them, and which one to use in CSS. Includes examples and a free converter.
colorscssdeveloper tools
2 min read
How to Convert a Unix Timestamp to a Date (and Back)
What a Unix timestamp is, how to tell seconds from milliseconds, and how to convert it to a readable date in UTC and your time zone, or a date back to a number.
unix timestampdeveloper toolsguides
2 min read
How to Format JSON Online and Fix Common Errors
Paste messy JSON, make it readable or minify it, and find the exact error. Covers the five mistakes that break JSON, with examples you can copy.
jsondeveloper toolsguides
2 min read
What Is Base64? How to Encode and Decode It
Base64 explained in plain words: what it is, why it exists, how to encode or decode text (including Urdu and emoji) and why it is not encryption.
base64developer toolsguides