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. Choose hex, base64, or unpadded base64url. Paste an expected digest to see which algorithm matches. SHA-256 is the default recommendation for new work. MD5 and SHA-1 remain for legacy compatibility only.
Options
- Output
- hex for checksums and CLI tools; unpadded base64url for compact tokens; standard padded base64 for APIs that expect it.
- Uppercase hex
- Applies only when output is hex. Ignored for base64 and base64url.
- Verify digest
- Paste an expected digest. Comparison ignores hex case and spaces, and base64url padding. Matching algorithm cards are highlighted.
Examples
Empty string
Input
SHA-256 (excerpt)
Short literal
Input
SHA-256 (excerpt)
Related encode utilities
For keyed signing use hmac-generator. For password storage use bcrypt-hash — plain SHA digests are not for passwords.
Hash generator FAQ
Checksums vs security
Can I use these hashes for passwords?
No. Prefer bcrypt (see bcrypt-hash) or your platform’s password hasher. SHA/MD5 digests here are for checksums and tests.
How is this different from HMAC?
Hash digests have no secret. For message authentication with a shared key use hmac-generator.
Is my text uploaded?
No — hashing runs entirely in your browser.
How do I check a checksum from a vendor?
Paste it in Expected digest. A match highlights the algorithm and means the same input and output format.
Is base64url padded?
No — this tool emits unpadded base64url (no trailing =). Use the base64 output option when the API expects standard padded base64.
Encoding
Encode or decode Base64, URL components and HTML entities — client-side only.
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