# SHA-256 Hash Generator

> Generate a secure SHA-256 hash from any text, in hex and Base64.

To generate a SHA-256 hash, paste text above and the 256-bit digest appears in both hexadecimal and Base64. SHA-256 is part of the SHA-2 family and remains the standard recommendation for integrity checking, digital signatures and blockchain work.

**URL:** https://convertto.tech/t/sha256-hash-generator
**Category:** Hash & Crypto Tools (https://convertto.tech/c/crypto-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Digest size:** 256 bits
- **Inputs:** Text or any file, hashed locally
- **Verification:** Compare against a published checksum
- **Security:** Considered secure for integrity use
- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Choose the hash.
2. Enter or paste your text to hash.
3. Select your file — the file stays on your device and is never uploaded.
4. Enter or paste your verify against (optional).
5. Turn "Uppercase hex" on or off as needed.
6. Press Run, then download the result when it is ready.

## FAQ

### Is SHA-256 good for storing passwords?

No. It is deliberately fast, so an attacker can try billions of guesses per second. Use a slow, salted algorithm designed for passwords such as bcrypt, scrypt or Argon2.

### How do I verify a downloaded file?

Switch the input to "A file", select your download, and paste the checksum published by the source into the verify box. A match means the content is byte-identical to what they hashed; a mismatch means you should not run it.

### Is my file uploaded to check it?

No. Files are read from disk and hashed in your browser, in chunks, so even very large files never leave your device.

## Related tools

- [SHA-512 Hash Generator](https://convertto.tech/t/sha512-hash-generator): Generate a 512-bit SHA-512 hash — the widest digest in the SHA-2 family.
- [File Hash & Checksum Calculator](https://convertto.tech/t/file-hash-calculator): Compute SHA-256, SHA-384, SHA-512 or SHA-1 for any file and verify it against a checksum.
- [MD5 Hash Generator](https://convertto.tech/t/md5-hash-generator): Generate an MD5 hash from any text — instantly and entirely in your browser.
- [SHA-1 Hash Generator](https://convertto.tech/t/sha1-hash-generator): Generate a SHA-1 hash from text — 160-bit digest, computed locally.
- [SHA-384 Hash Generator](https://convertto.tech/t/sha384-hash-generator): Generate a SHA-384 hash — a truncated SHA-512 used in TLS cipher suites.
- [Bcrypt Hash Generator](https://convertto.tech/t/bcrypt-hash-generator): Hash a password with bcrypt at a configurable cost factor — the right way to store passwords.
- [CRC32 Checksum Calculator](https://convertto.tech/t/crc32-checksum): Calculate a CRC32 checksum — the fast error-detection code used in ZIP and PNG files.
- [HMAC Generator](https://convertto.tech/t/hmac-generator): Generate an HMAC signature with SHA-256, SHA-1, SHA-384 or SHA-512 and a secret key.