Hash Calculator
Calculate SHA-256 hashes of text, files or decoded bytes locally, then copy or export the result.
Open
- free
- no sign-up
- on device
File Checksum Checker
Calculate and verify file checksums in your browser — free, with no sign-up, and your files never leave your device. Select a file, choose the algorithm and paste the expected checksum to check for a match.
Other algorithms
1 / 8 selected
Results
Batch: 0 complete / 0 files. Exports include all statuses.
Text, files, keys and hashes stay in this tab. Nothing you enter is uploaded or saved.
Questions
How long is the result?
SHA-256 produces 32 bytes: 64 hexadecimal characters. Base64 represents the same digest bytes. Any file type is accepted. The original bytes are hashed, not extracted document text or the filename. Files are processed one at a time in 1 MiB chunks.
What input is hashed?
Input source: Text / Files / Encoded bytes. Empty input is valid. Spaces and Unicode are preserved; no BOM is added. Text encoding: UTF-8, UTF-16LE, UTF-16BE; Line endings: LF / CRLF. Any file type is accepted. The original bytes are hashed, not extracted document text or the filename. Files are processed one at a time in 1 MiB chunks.
How does verification work?
Select the expected algorithm and encoding explicitly. Comparison uses decoded bytes and checks the exact length. Changing output format or expected value does not reread a file.
Are my inputs saved or uploaded?
Text, files, keys and hashes stay in this tab. Nothing you enter is uploaded or saved.
Is this tool free?
Yes. This tool is free, with no sign-up and no daily limits.
Do I need an account?
No. You can use this tool without an account.
Related tools
MD5 Generator
Calculate MD5 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator
SHA-1 Generator
Calculate SHA-1 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator