#Developer Tools
All articles tagged “Developer Tools”.
JWT Decoder: How to Read and Debug a JSON Web Token
Decoding a JWT shows you exactly what it contains — but decoding is not the same as verifying it is genuine, and that distinction matters a lot.
Free Hash Generator: What MD5, SHA-1 and SHA-256 Actually Do
A hash is a one-way fingerprint of data — the same input always produces the same hash, but the hash can never be reversed back into the original input.
Binary, Hex and Decimal Numbers Explained (And How to Convert Between Them)
Binary, decimal and hexadecimal are all just different bases for counting the same quantities — hex exists mainly to make binary easier for humans to read.
Base64 Encoding Explained: How to Encode and Decode Text or Data
Base64 is not encryption and does not compress anything — it exists purely to make binary data safe to carry in text-only formats.
The Developer's Guide to Formatting and Validating JSON
Turn a wall of minified JSON into something you can actually read and debug.
Image to Base64: What It Is and When You Should Use It
When embedding an image as text speeds things up — and when it backfires.
Get new guides in your inbox
Occasional tips on images, PDFs and free browser-based tools. No spam, unsubscribe anytime.