Data tool
Generate a SHA digest for pasted UTF-8 text. The input stays in your browser and the digest is shown as hex and Base64.
Input
Output
Generate a repeatable fingerprint for a pasted API example, release note, config value, or support snippet. The same UTF-8 text and algorithm produce the same digest; changing even one character changes the result. Compare a digest only when you also trust the expected value and know exactly how the original text was encoded.
Hex and Base64 represent the same digest bytes, so switching the display does not change the hash strength. Hex is common in command-line tools and documentation. Base64 is shorter and useful when a protocol already expects that alphabet. SHA-256 is a sensible general-purpose default; SHA-1 remains here only for compatibility with legacy comparisons.
A hash is one-way, but it is not encryption and does not authenticate who created the text. Plain SHA algorithms are also unsuitable for storing passwords because they are intentionally fast; password systems need a salted, slow password-hashing function. This tool does not hash files, create HMAC signatures, add salts, or compare digests for you.
Hashing uses the browser's Web Crypto API in this tab. The page does not upload or send pasted text to a server. A digest can still reveal that input matches a known value, especially when the source is short or predictable, so treat hashes of sensitive data with care.