How to Generate Hash Online
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly. Free hash generator for text and files. Compare hashes to verify file integrity.
Open Hash Generator →Step-by-Step Guide
1
Enter text or upload a file
Type or paste the text you want to hash, or drag and drop a file. The tool processes everything locally in your browser.
2
Select hash algorithm
Choose from MD5, SHA-1, SHA-256, or SHA-512. SHA-256 is the most common for security purposes. MD5 is fine for checksums but not security.
3
Get your hash instantly
The hash value appears immediately. It is a fixed-length hexadecimal string regardless of input size — a fingerprint of your data.
4
Copy or compare
Copy the hash to your clipboard. Use the compare feature to verify a file hash matches an expected value for integrity checking.
Try It Now — Free
No signup, no download. Runs entirely in your browser.
Open Hash GeneratorFrequently Asked Questions
What is the difference between MD5 and SHA-256?
MD5 produces a 128-bit hash and is fast but cryptographically broken — don't use it for security. SHA-256 produces a 256-bit hash and is secure, used in TLS, Bitcoin, and digital signatures.
Can I reverse a hash?
No. Hashing is a one-way function by design. You cannot recover the original input from a hash. This is different from encryption, which is reversible with a key.
Why do developers use hashes?
File integrity verification (checksums), password storage (with salt), digital signatures, data deduplication, and content-addressable storage like Git.