SHA-256 Hash
Text ToolsGenerate a SHA-256 hash of any text.
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SHA-256 hash
0 characters in · 0 out. Processed entirely in your browser.
What is SHA-256 Hash?
SHA-256 Hash turns any text into its 256-bit SHA-256 digest, shown as a 64-character hexadecimal string. It uses your browser's built-in Web Crypto engine — the same primitive that secures TLS, signatures, and blockchains — so results are standards-exact and update the instant you type. Because everything runs locally, the text you hash is never uploaded anywhere.
How to use SHA-256 Hash
Enter your text
Type or paste anything into the Text box, or click Load file to hash the contents of a .txt, .json, .csv, or other text file. The hash recomputes live as the input changes.
Read the digest
The SHA-256 hash appears on the right as 64 lowercase hexadecimal characters. Identical input always produces the identical hash, and the smallest change to the input changes the whole digest.
Choose the case
Toggle Uppercase hex if the system you are comparing against prints hashes in capitals. The value is the same digest, only the letter case of A-F differs.
Copy or download
Use Copy to grab the hash, or Download to save it as a text file. Paste it into a checksum field, a database, or a verification script.
Common uses
- Verify a download or file matches a published SHA-256 checksum
- Fingerprint text or config so you can detect if it later changed
- Generate deterministic keys or cache identifiers from input strings
- Compare two pieces of text for exact equality via their hashes
- Produce SHA-256 test vectors while building or debugging software
- Create content-addressable IDs for documents or messages
Why choose FreeTools
100% private
Your files are processed inside your browser and are never uploaded to a server.
Free, no account
No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.
Instant
No upload, no queue, no server round-trip — work starts the moment you drop a file.
Runs in your browser
Built on open web standards. Works on any modern desktop browser, nothing to install.
No upload size caps
Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.
Yours to keep
Results download straight to your device in clean, standard file formats.