Common use cases
- Integrity checks
- Create digests for comparing text values.
- Technical docs
- Show example hashes in documentation.
- Security testing
- Compare hash algorithms in non-production workflows.
Development · free tool
SHA256 and SHA512 hash generator for text checksums
Calculate SHA-256, SHA-384 and SHA-512 hashes for text.
Your tool
SHA256 / SHA512 Generator
Use it well
How to use SHA256 / SHA512 Generator
Steps
- Paste text to hash.
- Choose SHA-256, SHA-384 or SHA-512.
- Choose uppercase output if needed.
- Copy the generated digest.
Limits and good practices
Good practices
- Use realistic test values when validating forms, exports or API payloads.
- Keep real customer, banking and production secrets out of public tools.
- Check the output format before copying it into a production workflow.
- Document whether a value is generated, validated, converted or only estimated.
Common mistakes
- Confusing valid format with real-world validity
- A generated or locally validated value can match a format without proving that it exists in an official system.
- Using real production data
- Public utilities are best for test data, demos, fixtures, QA and quick checks, not for confidential values.
FAQ
Frequently asked questions
Is SHA256 better than MD5?
SHA-256 is more appropriate for modern integrity checks than MD5.
Can I store passwords with SHA256 alone?
No. Password storage should use dedicated algorithms such as Argon2, bcrypt or scrypt with salts.
Is a hash reversible?
A cryptographic hash is designed to be one-way, unlike encoding such as Base64.
Are my inputs sent to a server?
OnSubmit tools run in the browser whenever the task can be processed locally. Avoid pasting production secrets, real banking details or personal data into public tools.