Hash Generator Online — SHA-256, SHA-512, MD5
Compute cryptographic digests from text using SHA-256, SHA-384, SHA-512, SHA-1, or MD5. All hashing runs locally in your browser — ideal for checksums and development tests.
How hashing works here
Type or paste text; digests update automatically using the Web Crypto API (SHA family) and an inline MD5 implementation. SHA-256 is the default recommendation for new work. MD5 and SHA-1 remain for legacy compatibility only.
Uppercase hex toggle
Switch between lowercase (common in CLI tools) and uppercase hex (some enterprise checklists). Output is always hexadecimal without prefixes.
Examples
Empty string
Input
SHA-256 (excerpt)
Short literal
Input
SHA-256 (excerpt)
Related tools
Encode binary-safe transport with Base64 or validate JSON fixtures before hashing canonical forms via the JSON validator.
Hash generator FAQ
Checksums vs security
Is SHA-256 enough for passwords?
No — use dedicated password hashing (Argon2, bcrypt, scrypt) with salts. This tool is for checksums and dev tests.
Why include MD5?
Legacy systems still reference MD5 checksums. Do not use MD5 or SHA-1 for new security designs.
Is data uploaded?
Never — hashing runs locally via Web Crypto and inline MD5.
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