Privacy-focused processing

Hash & Checksum Generator

Create SHA-256, SHA-384, SHA-512 or CRC32 values from text.

We use reasonable safeguards to help protect your files and information while you use the service.

What to select

Paste text and choose SHA-256, SHA-384, SHA-512 or CRC32.

Up to 1,000,000 characters. Processing stays in this browser.

Supported formats

Plain text, JSON, XML, standard or URL-safe Base64, URL components, UUID v4, SHA-256, SHA-384, SHA-512 and CRC32.

Limits and safety

Text input is limited to 1,000,000 characters per task, and UUID generation is limited to 100 values at a time.

Frequently asked questions

Is my input uploaded or saved?

No. These developer utilities process input only in this browser tab.

Can a generated hash be reversed?

No. Cryptographic hashes are one-way values. CRC32 is a checksum for detecting accidental changes, not a security hash.

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