2026-09-08

Best Online Hash Generators (SHA-256, SHA-512)

A lot of free online hash generators still default to MD5 and SHA-1 — both cryptographically broken and unsuitable for anything security-sensitive — because they're familiar, not because they're a good idea to keep offering as if they're safe choices.

Quick comparison

Tool Algorithms offered Runs fully in your browser Encourages broken algorithms (MD5/SHA-1)
iLoveDevTools SHA-256, SHA-512 Yes No — deliberately excluded
Typical online hash generators MD5, SHA-1, sometimes SHA-256 No (server round-trip) Often, presented alongside secure options without a warning

iLoveDevTools

Hash Generator intentionally only offers SHA-256 and SHA-512 — the algorithms still considered secure — computed instantly as you type, entirely in your browser via the Web Crypto API. If you need a hash for verification or comparison, this covers the case without also normalizing a broken algorithm as a reasonable default.

Typical online hash generators

Most general-purpose hash tools list every algorithm ever popular — MD5, SHA-1, SHA-256, and more — side by side with no indication that two of them are broken and shouldn't be used for anything beyond legacy compatibility checks. Processing typically happens server-side.

Verdict

If you specifically need a legacy algorithm for compatibility with old data, you'll need a broader tool. For everything else, iLoveDevTools offers only the algorithms actually still considered secure, computed locally.

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