Checksum Calculator – SHA & MD5 Checksums
Calculate file checksums. Verify file integrity with MD5, SHA-1, SHA-256 hashes.
Tool
Enter your values and get results instantly.
How to Use
- 1Enter text
- 2See all checksums
- 3Compare for verification
Benefits
Frequently Asked Questions
What is a checksum?
A checksum is a short string computed from data using an algorithm like SHA-256. If the data changes even slightly, the checksum becomes completely different, making it perfect for verifying file integrity.
Which algorithms does this calculator support?
SHA-1, SHA-256, SHA-384, and SHA-512. All four checksums are generated simultaneously when you enter your text.
How do I verify a downloaded file?
Generate a checksum from the original source and compare it with the checksum of your downloaded file. If they match, the file is authentic and unmodified.
Is this the same as encryption?
No – checksums are one-way. You cannot recover the original data from a checksum. They are used for verification, not secrecy.
Can I checksum large files?
The current web tool works with text input. For large files, you can paste a segment or use a dedicated desktop tool.