How do I get the SHA-256 hash of an image?

Drop your image or file onto the upload zone (or click to browse, or paste with Ctrl+V / Cmd+V); the SHA-256 digest appears instantly as 64 hex characters. Click Copy to use it. It is completely free and runs entirely in your browser via the Web Crypto API, so your file is never uploaded.

Are files uploaded to a server?

No. The file's bytes are read and hashed entirely in your browser; nothing leaves your device. This is the core design principle of the tool.

Is computing a SHA-256 image hash free?

Yes — generating a SHA-256 checksum fingerprint of any image or file is completely free, forever. No account, no sign-up, and no limit on how many files you hash. The hash is computed in your browser using the native Web Crypto API; your files are never sent to any server. The site is ad-supported.

Does it work offline?

Yes. The Web Crypto SubtleCrypto API is built into the browser, so hashing needs no server connection and works offline after the page loads.

Why SHA-256 and not MD5?

MD5 is broken for integrity (practical collisions exist). SHA-256 is the modern, collision-resistant standard and is provided natively by the browser, so we use it exclusively.

What can I use the hash for?

Verifying a downloaded file matches its publisher's checksum, confirming two files are byte-for-byte identical, de-duplicating files, or keeping a tamper-evident fingerprint of an image.

Will the same file always give the same hash?

Yes. SHA-256 is deterministic — identical bytes always produce the same 64-character digest. Changing a single byte changes the hash completely.

Image SHA-256 Hash / Checksum

Image Hash is a free browser-based tool that computes the SHA-256 checksum (a 256-bit, 64-character hex fingerprint) of any image or file using the native Web Crypto API. Drop a file to get its hash instantly — the bytes are read and hashed on your device with no upload, and it works offline.

Get the SHA-256 fingerprint of any image or file directly in your browser — free, no upload required.

100% Free — Forever. No fees, ever.
Private: files are processed locally in your browser and never sent to a server.
No upload, no account, no sign-up.

How do I get the SHA-256 hash of an image?: Drop your image or file onto the upload zone (or click to browse, or paste with Ctrl+V / Cmd+V); the SHA-256 digest appears instantly as 64 hex characters. Click Copy to use it. It is completely free and runs entirely in your browser via the Web Crypto API, so your file is never uploaded.
Are files uploaded to a server?: No. The file's bytes are read and hashed entirely in your browser; nothing leaves your device. This is the core design principle of the tool.
Is computing a SHA-256 image hash free?: Yes — generating a SHA-256 checksum fingerprint of any image or file is completely free, forever. No account, no sign-up, and no limit on how many files you hash. The hash is computed in your browser using the native Web Crypto API; your files are never sent to any server. The site is ad-supported.
Does it work offline?: Yes. The Web Crypto SubtleCrypto API is built into the browser, so hashing needs no server connection and works offline after the page loads.
Why SHA-256 and not MD5?: MD5 is broken for integrity (practical collisions exist). SHA-256 is the modern, collision-resistant standard and is provided natively by the browser, so we use it exclusively.
What can I use the hash for?: Verifying a downloaded file matches its publisher's checksum, confirming two files are byte-for-byte identical, de-duplicating files, or keeping a tamper-evident fingerprint of an image.
Will the same file always give the same hash?: Yes. SHA-256 is deterministic — identical bytes always produce the same 64-character digest. Changing a single byte changes the hash completely.

SHA-256 produces a 256-bit digest, written as 64 hexadecimal characters, and is part of the NIST FIPS 180-4 Secure Hash Standard.
The Web Crypto API's crypto.subtle.digest is implemented natively by all modern browsers, so no JavaScript hashing library is downloaded.
SHA-256 is deterministic and collision-resistant: changing one bit of input changes roughly half of the output bits (the avalanche effect).
MD5 and SHA-1 are deprecated for security because practical collision attacks exist; SHA-256 has no known practical collisions.
Because hashing is client-side, the tool can fingerprint confidential files without ever transmitting them.

🔢 Image SHA-256 Hash / Checksum

Image SHA-256 Hash / Checksum