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YFT
Client-side ProcessingUpdated 2026-02-11Report issue

Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.

Hash Comparator

Compare two hashes securely with constant-time comparison.

FreeRuns in browserhash comparecompare hashes
1 lines
1 lines
Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result

About Hash Comparator

Compare two hashes securely with constant-time comparison. Compare two hashes securely online for free. Uses constant-time comparison to prevent timing attacks. Shows match status with detailed byte-level stats. Uses professional-grade diff algorithms to highlight insertions, deletions, and modifications at the line or character level. Includes statistical summaries and side-by-side visual comparison. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.

Related tools: HMAC Generator, Hash Identifier, Cipher Algorithm Comparator

How to Use Hash Comparator

  1. Enter content in both input fields (A and B).
  2. The tool compares them and highlights differences.
  3. Review the comparison results and statistics.

Frequently Asked Questions

What is Hash Comparator?
Compare two hashes securely online for free. Uses constant-time comparison to prevent timing attacks. Shows match status with detailed byte-level stats.
How are differences detected?
The tool uses established diff algorithms similar to those in version control systems like Git. It identifies insertions, deletions, and changes at the line or character level, depending on the comparison mode.
Can I compare large texts?
Yes, the comparison runs entirely in your browser and can handle large documents efficiently. For very large files, processing may take a moment longer, but there are no hard size limits imposed by the tool.
What comparison algorithms are used?
The tool implements the Myers diff algorithm, which is the same algorithm used by Git and other professional-grade diff tools. This ensures minimal, human-readable diffs that clearly show what changed.
Is Hash Comparator free to use?
Yes, comparing content is entirely free with no size limits or account requirements. Everything runs in your browser.
Is my data safe when using Hash Comparator?
Yes, both inputs stay entirely in your browser. No data is sent to any server, so your content remains private and secure.

Related Tools

HMAC Generator
Generate HMAC digests using SHA-256, SHA-512, or MD5.
Hash Identifier
Identify the type of a hash from its format and length.
Cipher Algorithm Comparator
Compare encryption algorithms side-by-side on the same input.