Developer

Hash Generator

Generate a cryptographic hash from plain text using common SHA algorithms.

Last reviewed: April 30, 2026Free toolMethodology

Hash Generator

Choose a digest algorithm.

These fields start with sample inputs. Keep them or replace them, then run the tool to show a fresh result.

Output

Calculating the sample result.

Why it matters

Hashing is a common developer task for integrity checks, API signing prep, and troubleshooting mismatched payloads.

When to use

  • Comparing payload integrity
  • Creating deterministic digests for docs or tooling
  • Testing client-side crypto flows

Inputs & Outputs

Inputs

  • Input text is the exact string to hash.
  • Algorithm selects which SHA digest variant to use.

Outputs

  • Hex digest shows the lowercase hash value.
  • Length output helps verify that the expected algorithm was used.

Digest method

The tool encodes the input as UTF-8 and runs it through the browser's Web Crypto digest implementation.

Hashing is one-way; the original text cannot be derived from the digest

Worked example

1

Webhook test

A developer wants to hash an expected payload string to compare it with another system's digest.

Inputs

  • Input text: order=8472&status=paid
  • Algorithm: SHA-256

Steps

  • Encode the string into bytes
  • Generate the digest
  • Render it as hexadecimal

Result

  • The digest can be compared directly with another implementation.

Edge cases & caveats

  • Different whitespace or line endings produce a completely different digest.
  • Hashing is not encryption and does not keep the input secret.

Frequently Asked Questions

Why does the digest change when I add one space?

Because cryptographic hashes are extremely sensitive to even the smallest input change.

Does this support MD5?

No. This tool focuses on standard SHA algorithms available through Web Crypto.

Keep going

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