Data formats
How to Base64 encode and decode on a Mac
Base64 is an encoding, not encryption. Learn Base64 vs Base64URL, what the = padding means, and the macOS Terminal commands to encode and decode text and files.
5 min read
Guides
Data formats
JSON, Base64, URL encoding and timestamps: reading them, fixing them and converting them.
Data formats
How to convert a Unix timestamp to a date
Seconds or milliseconds, UTC or local time: how to turn a Unix timestamp into a real date on a Mac, on Linux and in JavaScript.
5 min read
Data formats
How to fix invalid JSON: the common errors
The handful of mistakes behind almost every invalid JSON error, with before and after examples and how to find the position.
5 min read
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Put the toolbox on your Mac
Free for eight tools, with no time limit and no account. Needs macOS 14 or later on Apple Silicon and Intel.