Free online file hash calculator supporting MD5, SHA-1, SHA-256, SHA-384, SHA-512. Drag & drop files to compute checksums and verify file integrity. All processing done locally in your browser β files never leave your device.
π Local Processing Β· No Upload Β· Large File Supportπ§ Select Hash Algorithms
π Hash Verification
Paste the expected hash value to verify file integrity.
π About File Hash Calculator
The File Hash Calculator is a tool that runs entirely in your browser. It uses the Web Crypto API to compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hash values for your files. Files never leave your device β all computation is done locally, ensuring complete data privacy.
Why choose File Hash Calculator
- Drag & Drop: Simply drag files onto the page β no complex setup
- Multiple Algorithms: MD5, SHA-1, SHA-256, SHA-384, SHA-512
- Batch Processing: Select multiple files and hash them all at once
- Hash Verification: Paste expected values to automatically verify file integrity
- One-Click Copy: Copy button next to each hash value
- 100% Local: All processing in your browser, zero data upload
File Hash Calculator in 3 steps
1. Select the hash algorithms you need (MD5, SHA-1, SHA-256 selected by default)
2. Drag & drop files onto the dashed area, or click to select files
3. Wait for computation to complete and view the hash values
4. Click the copy button to get hash values, or use the verification section to compare
When to use File Hash Calculator
- Software Download Verification: Verify ISO images and installers against official hashes
- File Transfer Integrity: Check large file transfers for corruption
- Data Integrity Checks: Verify backup files haven't been corrupted
- Security Auditing: Confirm files haven't been tampered with
- Development: Quickly get file hash fingerprints during development
Algorithm Comparison
- MD5: 128-bit, fast but less secure β good for everyday checks
- SHA-1: 160-bit, no longer recommended for security but widely used (e.g., Git)
- SHA-256: 256-bit, the most commonly used secure hash β recommended
- SHA-384: 384-bit, truncated version of SHA-512
- SHA-512: 512-bit, highest security for sensitive scenarios
FAQ
What is a file hash calculator?
A file hash calculator computes MD5, SHA-1, SHA-256, SHA-384, SHA-512 hash values for files. By comparing hashes, you can verify whether a file has been tampered with or corrupted.
Are my files uploaded to a server?
No. All computation happens locally in your browser. Your files never leave your device.
What is the maximum file size?
There is no hard limit. Large files (several GB) can be processed, but may take longer. For very large files, consider dedicated desktop tools.
Which hash algorithms are supported?
MD5, SHA-1, SHA-256, SHA-384, and SHA-512 are supported.
Can I hash multiple files at once?
Yes. Select multiple files and the tool will compute hashes for each one sequentially.
How do I verify file integrity?
Compute the file's hash, then compare it against the official hash value. If they match exactly, the file has not been tampered with or corrupted.