The short answer: SHA-256 Hash & Verify / SHA-512 Hash & Verify: Inputs and controls / Visible result and export. SHA-256 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup. SHA-512 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup. Choose by the task and review the current limits before exporting.
| SHA-256 Hash & Verify | SHA-512 Hash & Verify | |
|---|---|---|
| Purpose | SHA-256 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup. | SHA-512 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup. |
| Input | SHA-256 Hash & Verify: Text uses UTF-8 without normalization. Choose File bytes to hash an original file, including an empty file. The filename and MIME type are not part of the digest. | SHA-512 Hash & Verify: Text uses UTF-8 without normalization. Choose File bytes to hash an original file, including an empty file. The filename and MIME type are not part of the digest. |
| Output | SHA-256 Hash & Verify: Clear empties the input, the expected digest, and the result in one step, and the status returns to Ready. Nothing is kept between runs, so a list of identifiers can be checked one after another without leftovers. | SHA-512 Hash & Verify: Clear empties the input, the expected digest, and the result in one step, and the status returns to Ready. Nothing is kept between runs, so a list of identifiers can be checked one after another without leftovers. |
| Typical use | SHA-256 Hash & Verify: Verifying downloads against published checksums — the standard choice | SHA-512 Hash & Verify: Integrity checks where policy or threat model demands the larger digest |
SHA-256 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup. SHA-512 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup.
SHA-256 Hash & Verify: Text uses UTF-8 without normalization. Choose File bytes to hash an original file, including an empty file. The filename and MIME type are not part of the digest. SHA-512 Hash & Verify: Text uses UTF-8 without normalization. Choose File bytes to hash an original file, including an empty file. The filename and MIME type are not part of the digest.
SHA-256 Hash & Verify: Clear empties the input, the expected digest, and the result in one step, and the status returns to Ready. Nothing is kept between runs, so a list of identifiers can be checked one after another without leftovers. SHA-512 Hash & Verify: Clear empties the input, the expected digest, and the result in one step, and the status returns to Ready. Nothing is kept between runs, so a list of identifiers can be checked one after another without leftovers.
SHA-256 Hash & Verify: Verifying downloads against published checksums — the standard choice SHA-512 Hash & Verify: Integrity checks where policy or threat model demands the larger digest
SHA-256 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup.
Open tool — SHA-256 Hash & VerifySHA-512 · Hash text or files up to 256 MiB locally, verify a digest and demonstrate bounded ASCII candidates. Compare downloads against trusted reference checksums. Hashes are one-way. This checks only a chosen ASCII candidate space; finding a match does not recover every possible original. Limits: length 1–6, at most 100,000 attempts and five seconds. No dictionaries, uploads or remote lookup.
Open tool — SHA-512 Hash & Verify