Hash Toolkit · Client-side security

SHA-3 File Hash Checker

Drag-and-drop any file, pick your preferred SHA-3 digest length, and confirm checksums locally. CipherTools never uploads your data. Switch to the text hash tool →

File SHA-3 Hash

Stream SHA3-224, SHA3-256, SHA3-384, or SHA3-512 digests for any file locally. Perfect for checksum manifests, firmware validation, or comparing supplier hashes.

Variant

Output: 256-bit digest rendered as 64 hexadecimal characters. Swap variants to compare lengths without re-uploading.

Choose a file

Upload a file

Click to browse or drag & drop files here

Files never leave your device.

File SHA3-256 hash

Hash validation

Select a file and enter a target hash to validate.

Why SHA-3?

SHA-3 extends the Keccak sponge construction to deliver flexible digest sizes and defense-in-depth when you need NIST-approved alternatives to SHA-2. Pick the digest size that matches your compliance flow.

CipherTools hashes entirely on-device. Variant switches simply re-run hashing locally—no uploads, no retained file data after you close the tab.