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Hash & Integrity Tool – MD5, SHA-256 Checksum Generator

Generate and verify file hashes with MD5, SHA-1, SHA-256, and SHA-512 for integrity verification and checksum validation.

🟢 Runs locally · no uploads

Hash & Integrity Tool

Generate text digests and verify expected hashes locally in the browser.

This route supports text hashing and verification. For local file uploads, use File Hash Integrity Checker.

Algorithms

Select one or more digests to generate in a single run.

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› About this tool · FAQ

Unified hash generator with text/file hashing, multi-algorithm support, integrity verification, and batch processing — all client-side.

Which hash algorithm should I use?

For new applications, use SHA-256 or SHA-512. MD5 and SHA-1 are deprecated for security use but still useful for checksums and non-cryptographic purposes.

Can I hash files without uploading them?

Yes! All file processing happens locally in your browser using the File API. No data is ever sent to any server.

What's the difference between hex and Base64 output?

Hex uses 0-9 and A-F characters (longer), while Base64 uses A-Z, a-z, 0-9, +, / (shorter). Both represent the same hash data in different formats.

Can I reverse a hash to get the original data?

No, cryptographic hashes are one-way functions. You cannot reverse them to get the original data, but you can verify if input matches by comparing hashes.

How accurate is the hash verification?

Hash verification is cryptographically secure. A matching hash provides extremely high confidence (99.999...%) that data is identical, while mismatches definitively indicate changes.