How to Encode and Decode Base64 (And Read a JWT Payload)
What those A-Z, a-z, 0-9 strings actually mean, why they aren't secure even though they look scrambled, and how to peek inside a JWT token.
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Tag
#Developer Tools
12 articles tagged “Developer Tools”.
How to Format and Beautify JSON (And Understand What Went Wrong)
Turning a wall of minified JSON into something readable, and what to actually check when formatting throws an error instead.
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How to Format and Minify CSS Online (and What Actually Gets Stripped)
Turning a single unreadable line of production CSS back into something you can actually edit, and the reverse trip before it ships.
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How to Format and Validate XML Online (and What "Well-Formed" Really Means)
Turning a squished XML export into readable markup, why the formatter refuses broken input outright, and how to actually find out what's wrong with it.
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How to Format Messy HTML Online (Without Breaking Your Scripts)
Turning a squished, one-line page source back into readable markup, and the one design detail that keeps embedded JavaScript and CSS from getting mangled in the process.
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How to Generate a Random Number Online (True Randomness, Not a Predictable Formula)
Why the source of randomness actually matters, what "no duplicates" really guarantees, and how to pick a fair result every time.
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How to Generate a SHA-256 Hash (and Which Algorithm to Actually Use)
What a hash function actually does, why it can't be reversed, and how to choose between MD5, SHA-1, SHA-256 and SHA-512 when a guide just says "hash it."
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How to Generate a UUID (And Why Random IDs Practically Never Collide)
What's actually inside those 32 hexadecimal characters, and why a randomly generated ID is safe to trust without a central authority checking for duplicates.
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How to Generate Lorem Ipsum Text (and What It Actually Says)
Where that scrambled Latin filler text actually comes from, why designers still reach for it, and how to generate exactly the amount a mockup needs.
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