This set of text tools handles the everyday developer and writer tasks — Base64 encoding and decoding, generating hashes, testing regular expressions, and transforming text. It is a quick utility belt for working with strings without reaching for the command line.
Encoding, hashing and regex
Base64 encoding turns binary or text into an ASCII-safe string for embedding in data URLs, config, or emails, and decodes it back again — note it is encoding, not encryption, so it provides no secrecy. Hash functions produce a fixed-length fingerprint of input that is useful for checksums and verifying data integrity. Regular-expression testing lets you build and check a pattern against sample text, seeing what it matches before you use it in code.
Each of these is something developers do constantly but awkwardly by hand. Having them in one place — paste in, get the result — saves context-switching and the small errors that creep into manual encoding or an untested regex.
Practical uses
Decode a Base64 token to inspect it, hash a file's contents to confirm a download, prototype a regex to extract fields from log lines, or transform a block of text. Because the work happens in your browser, it is a fast scratchpad for the string manipulation that surrounds real development and writing tasks.
Encoding the word 'Hello' to Base64.
- Take the bytes of 'Hello'.
- Group and map them to the Base64 alphabet.
- Result: SGVsbG8=.
'Hello' encodes to the Base64 string SGVsbG8=, which decodes straight back.
