Data & Code
JSON that won't parse? Encoded text you can't read? A hash you need to verify? These tools decode the digital world around you.
Common Problems
What is JSON and why is it everywhere?
Is Base64 the same as encryption?
What's a hash and when do I need one?
Tools
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Frequently Asked Questions
What is JSON and why is it everywhere?
JSON (JavaScript Object Notation) is a lightweight format for storing and exchanging data. It's used by almost every website and API because it's easy for both humans and computers to read.
Is Base64 the same as encryption?
No. Base64 is encoding — it converts data to a different format for transport. Anyone can decode it. Encryption scrambles data so only someone with the key can read it. Never use Base64 to protect sensitive data.
What's a hash and when do I need one?
A hash is a fixed-length fingerprint of data. Common uses: verifying file downloads (compare the hash), storing passwords (hash them, never store plaintext), and checking data integrity.