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How to Use Multi-Hash Generator - Step by Step Guide

Create all primary SHA digests in one run for cross-system compatibility

Step 1

Add Input Text

Paste text, JSON, or upload file content. The SubtleCrypto.digest() method computes all four hash algorithms simultaneously from a single input.

Paste directly: Paste JSON payloads, XML documents, config files, or any UTF-8 text content.
Upload a file: Load .txt, .json, .xml, or .csv file content into the input editor.
Try sample: Use the sample button to load a JSON event payload and preview all four digests.

Example — generating all hashes for a webhook payload:

Input: {"event":"signup","user":"u-101","plan":"pro","active":true}

SHA-1:   2ef7bde608ce...
SHA-256: 9f86d081884c...
SHA-384: 768412320f7b...
SHA-512: ee26b0dd4af7...

→ All four digests generated from a single input
Step 2

Automatic Hash Generation

All four SHA-2 family digests (plus SHA-1) are computed in parallel using Promise.all() for maximum performance.

SHA-1 (160-bit): Legacy digest for backward compatibility with older tools and Git object hashing.
SHA-256 (256-bit): Industry standard used in npm integrity checks and TLS certificates.
SHA-384 / SHA-512: Higher-security digests for compliance and high-assurance environments.
Step 3

Compare and Verify

Use the generated digests to verify integrity across different systems that may require different algorithms.

Cross-tool compatible: Output matches OpenSSL dgst, Node.js crypto, Python hashlib, and Go crypto/sha256.
Deterministic: Same input always produces identical digests — useful for change detection in CI pipelines.
Avalanche effect: Even a single character change produces completely different digests across all algorithms.

Example — verifying with OpenSSL:

# Verify SHA-256 output matches OpenSSL
echo -n '{"event":"signup"}' | openssl dgst -sha256
# Should match the SHA-256 hex output from this tool

# Verify SHA-512
echo -n '{"event":"signup"}' | openssl dgst -sha512
# Should match the SHA-512 hex output from this tool
Step 4

Copy or Export Results

Export all four digests at once for CI checks, audit logs, or release manifests.

Copy: Copy all digests to clipboard in a structured format.
Download: Save the result sheet as a plain text file.
Need single algorithm? Use SHA-256 Generator or SHA-512 Generator for HEX + Base64 output.

Frequently Asked Questions

Why generate multiple hashes at once?

Different systems require different digest algorithms. Generating all four at once saves time when you need to publish checksums for multiple platforms or meet different compliance requirements.

Is this tool free to use?

Yes. You can generate unlimited multi-hash digests with no account, no usage limits, and no data leaving your browser.

Is hashing done in the browser?

Yes. All four digests are computed client-side via the W3C Web Crypto API. Your content never leaves the browser.

Need single-algorithm output?

Use dedicated pages for single-algorithm hashing with additional Base64 output: SHA-256 Generator, SHA-512 Generator, or SHA-1 Generator.

Can I hash binary files?

This tool processes text content with UTF-8 encoding. For binary file checksums, use File Checksum Generator which reads files as raw binary data.

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