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Hash Generator
Type or paste any text to instantly compute its MD5, SHA-1, SHA-256 and SHA-512 hashes. Everything runs locally in your browser — nothing you enter is ever uploaded.
Hashes are computed entirely on your device. SHA-1, SHA-256 and SHA-512 use the browser's native crypto.subtle.digest; MD5 uses a bundled pure-JavaScript implementation. No network calls are made.
What is a hash generator?
A hash generator (also called a checksum calculator) takes any input — a password, a message, a file's contents — and runs it through a one-way cryptographic hash function to produce a short, fixed-length fingerprint. The same input always yields the same hash, but the original text cannot be recovered from the hash. Hashes are widely used to verify download integrity, store password digests, deduplicate data, and sign or compare content.
MD5, SHA-1, SHA-256 and SHA-512 compared
MD5 produces a 128-bit (32 hex character) digest. It is fast and still common for checksums and deduplication, but it is cryptographically broken — collisions can be engineered — so it should not be used for security. SHA-1 produces a 160-bit digest and is also considered weak against collision attacks; it is being phased out. SHA-256 and SHA-512 belong to the SHA-2 family and produce 256-bit and 512-bit digests respectively; they are the current recommendation for integrity checks and digital signatures.
How to use it
1. Type or paste your text into the box above. 2. With Live enabled the four hashes update as you type; otherwise click Generate. 3. Tick Uppercase output if you need capital hex digits. 4. Click Copy next to any row, or Copy all, to grab the results.
Is my data safe?
Yes. This tool is 100% client-side. The text you enter never leaves your browser — there is no server, no upload, and no logging. You can confirm this by opening your browser's network tab while you hash, or by saving the page and using it fully offline.
How do I verify a file checksum?
To check a download, hash the expected value the publisher provides and compare it to the hash of what you received — if they match character-for-character, the file is intact. This tool hashes text input; to checksum a binary file, paste its known good string or use your operating system's checksum command and compare the SHA-256 value here.