File Kit
Free File Hash Checker — SHA-1, SHA-256, SHA-512
Compute SHA-1, SHA-256, and SHA-512 hashes for any file. Compare against expected hash to verify file integrity. Free online tool.
FAQ
What hash algorithms are supported?
SHA-1 (40 hex characters), SHA-256 (64 hex characters), and SHA-512 (128 hex characters) using the Web Crypto API.
How do I verify a file's integrity?
Upload the file, then paste the expected hash from the source. The tool will show whether they match.
Is the hash computation secure?
Yes. Hashing is done using the browser's native Web Crypto API (SubtleCrypto.digest), which provides cryptographic-grade implementations.
Can I hash large files?
Yes. The file is read into memory and hashed. Files up to several hundred MB typically work well depending on your device.