Hash Generator

Generate cryptographic hashes from text.

Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes locally. Verify file integrity or hash passwords safely.

Why This Tool Exists

Hashing is the fingerprinting of data. Whether you are checking if a downloaded file is corrupted (Checksum) or storing a password, you need a one-way hash function. Most online hashers ask you to "Upload File". This is dangerous for sensitive documents. PrivaQuickTools Hash Generator reads your text or file directly in the browser and calculates the hash using High-Performance WebAssembly or Native JS libraries.
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I needed to verify the SHA-256 checksum of a sensitive ISO file. Uploading 4GB to a server was impossible. I built this to hash it right here on my machine.

Key Capabilities

Core features that make this tool powerful.

Multiple Algorithms

File Hashing (coming soon)

Lowercase/Uppercase output

How It Works

Understanding the processing logic.

Supporting standard algorithms: - **MD5:** Fast, legacy (unsafe for crypto). - **SHA-1:** Git standard (legacy). - **SHA-256:** standard security. - **SHA-512:** High security.

Accuracy & Reliability

Bit-perfect implementation of standard FIPS 180-4 algorithms.

Who Is This For?

DevOps

Verify downloaded artifacts.

Developers

Debug API signatures.

Common Mysteries & Fixes

MD5 for Passwords

Never use MD5 for passwords. It is broken. Use SHA-256 or bcrypt (on server).

Salt

This tool generates raw hashes. For passwords, you should always add a 'salt'.

Real-World Scenarios

Checksums

Verifying downloads.

Dedup

Identifying duplicate content.

Why Choose PrivaQuickTools

FeaturePrivaQuickToolsOthers
PrivacyLocalServer

Privacy & Security Guaranteed

We do not store, view, or upload your files. All processing happens in your browser's memory. When you close the tab, all data is wiped from memory.

Good to Know

Large files depends on your device RAM. Processing massive video/PDFs may be slower on mobile devices.

Benefits

  • FastNative speed.
  • PrivateNo data upload.

When Not To Use

While we aim for perfection, browser-based tools have limits. This tool might not be the best fit for:

  • Extremely large files (e.g., video over 2GB)
  • Batch processing thousands of files at once
  • Workflows requiring server-side collaboration or cloud storage

Frequently Asked Questions

Common questions about this tool.

No. Hashing is one-way. You cannot reverse it, only brute-force it.