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Bulk SHA Hash Generator
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Bulk generate SHA-1, SHA-256, and SHA-512 hashes. Supports HEX/Base64 formats and case conversion for data validation and digital signatures.
Enter text to start batch encryption
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
This bulk SHA hash generator treats every nonblank input line as a separate text string and calculates each selected algorithm for that line. It supports SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512; SHA-256 and lowercase HEX are selected initially. You can select multiple algorithms, but at least one must remain selected. Results appear in a table with the original line and one digest column per algorithm, and can be copied or exported as CSV.
A hash digest is a fixed-length summary of input, not encrypted text. It has no decryption key and cannot be decoded back into the original. Under FIPS 180-4, SHA-256 produces a 256-bit digest, displayed as 64 hexadecimal characters; SHA-1, SHA-224, SHA-384, and SHA-512 produce 160, 224, 384, and 512 bits respectively. HEX and Base64 are two text encodings of the digest bytes, so changing display encoding does not change the selected hash calculation.
Hash comparisons work only when the input text is identical. Spaces at the beginning or end of a nonblank line remain part of its input; blank or whitespace-only lines are skipped. Newlines separate records rather than joining lines into one message. HEX letter case does not change the hexadecimal value, but Base64 is case-sensitive. The page’s uppercase/lowercase option changes every output string, so case-converted Base64 should not be treated as canonical Base64.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Paste text with one value per line. Empty lines and lines containing only whitespace are ignored; spaces around a nonblank value are included in that value.
Keep at least one SHA option selected. If you are checking a published digest, use the algorithm specified by its publisher rather than choosing one based only on output length.
Select HEX or Base64 and the displayed letter case. For an exact comparison or protocol handoff, HEX avoids the case-conversion issue that can make Base64 noncanonical.
Generate the table, compare each digest against the matching input record, then copy an individual value, copy the results, or export a CSV file.
Use cases
See how the tool fits into real work and everyday tasks.
When a publisher supplies a digest for a text string, enter the exact same characters, select the named SHA algorithm, and compare the digest using the same encoding. This checks the text you entered, not a file’s underlying bytes.
A developer can hash several non-sensitive sample strings at once, export the input/output pairs, and use them as expected values in local tests or integration checks.
Q&A
Find concise answers to common questions and confusing cases.
No. A digest is a one-way summary, not ciphertext; it cannot be decrypted to recover the input.
Confirm the exact input, including whitespace and line endings, and verify that the same SHA algorithm and encoding are used. This page hashes text lines; it does not read a file’s bytes, so it cannot directly verify a downloaded file.
Do not use a plain SHA digest as a password-storage design. Password verifiers require a purpose-built, salted hashing scheme with appropriate cost settings; NIST’s current guidance describes that separate use case.
The underlying digest bytes are unchanged, but changing letter case changes Base64 symbols. Compare canonical Base64 exactly as produced, or use HEX when case-insensitive text comparison is required.
Notes
Review scope, result limitations, and important precautions before use.
Do not paste passwords, access tokens, or confidential records into a general purpose text field. This tool’s input is text, not a file picker: verifying a file requires hashing the exact file bytes with a method that reads that file. A SHA digest alone does not provide a digital signature, identity check, or safe password-storage mechanism. For protocol comparisons, follow the protocol’s algorithm, byte encoding, and digest representation exactly.
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