SHA-256 Hash Generator
Generate SHA-256 hashes instantly. Hash text as you type or files of any size (processed in chunks on your device), choose hex or Base64 output, and compare against a published checksum to verify a download.
Type or paste text to get its SHA-256 hash instantly, or drop a file of any size to hash it in chunks on your device. Choose hex or Base64 output, and paste an expected checksum to verify a match. SHA-256 is the standard for checksums, digital signatures and blockchains.
SHA-256 hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
256-bit digest · 64 hex characters · text is hashed as UTF-8
Zero Server Uploads
Files process in local RAM
Instant WASM Speed
No waiting queues or lags
Unlimited Batching
Convert files without limits
Suggest a Feature or Improvement for SHA-256 Hash Generator
Need custom options, higher limits, or extra format support? Let our engineering team know!
How to use SHA-256 Hash Generator
- 1Choose Text or File.
- 2Type the text or drop the file — the hash updates instantly.
- 3Pick hex (lower or upper case) or Base64 output.
- 4Paste an expected hash to verify a download or value.
About SHA-256
SHA-256 is part of the SHA-2 family standardised by NIST. It produces a 256-bit (64 hex character) digest and has no known practical attacks, which is why it's used for TLS certificates, software checksums, Git's newer object format, Bitcoin and countless APIs.
Text is hashed as UTF-8 bytes, so the result matches sha256sum, OpenSSL, Python's hashlib and Node's crypto for the same input — watch for invisible trailing newlines when comparing.
Hashing isn't encryption
A hash function turns any input into a fixed-size fingerprint. The same input always gives the same hash, the smallest change gives a completely different one, and there's no key to reverse it — which is why “hash decrypters” only look up precomputed hashes of common strings.
Hash text for checksums, deduplication and signatures; store passwords with a slow, salted algorithm like bcrypt instead. Verify downloads with the File Hash Checker.
Frequently Asked Questions
Why does my SHA-256 differ from the command line?
Usually a trailing newline: `echo "text" | sha256sum` hashes “text\n”. Use `echo -n` or `printf` to match this tool, or hash the file itself.
Can a hash be decrypted?
No. Hashes are one-way. Sites that “decrypt” hashes just search tables of hashes of common words and leaked passwords, which is why short or common inputs can be found and long random ones can't.
Is my data sent to your server?
No. This tool runs entirely in your browser using the Web Crypto API and JavaScript. Nothing you type or generate is uploaded, logged or stored.
Guides & Tutorials
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