Hash Generator

Hash Generator computes cryptographic digests — SHA-1, SHA-256, SHA-384, SHA-512, and MD5 — for any text or file you provide. The same input always produces the same fixed-length hex string, which is why hashes are the backbone of data integrity checks, password storage, and digital signatures. When you download a large installer or ISO, the publisher often lists its SHA-256 checksum alongside the download link. Run the file through this tool and compare the output to that published value — if they match, you know the file wasn't tampered with in transit. Developers also hash files to detect changes in build artifacts, verify that a Docker image layer hasn't changed, or deduplicate content-addressed storage like Git does internally. For text, the tool is useful when generating a cache key from a configuration string (if the hash changes, the cache invalidates), creating a deterministic ID from a compound value, or verifying that two API responses are byte-identical without diffing them. Drop a file onto the input area to hash its full binary content — useful for PDFs, images, and archives where a single corrupted byte must be caught. All algorithms use the Web Crypto API (SubtleCrypto), which runs natively and handles multi-megabyte files without blocking the UI.