hash generator online.
Generate MD5, SHA-1, SHA-256, SHA-512, and bcrypt hashes for text and files directly in your browser.
Private · Client-side only·No data leaves your browser
Enter text or drop a file
Type a string to hash, paste a known digest in Verify mode, or drag a file for SHA-1/256/512 checksums.
Output will appear here
How to use the hash generator online
- Enter text in the left panel for instant hashes.
- Switch to Verify mode to compare a known hash against computed digests.
- Use the bcrypt rounds slider (4-12) to tune bcrypt cost.
- Drag and drop a file to compute SHA hashes client-side.
What is a Hash Function?
A hash function maps arbitrary input to a fixed-length digest. Cryptographic hashes are used for integrity checks, signatures, and secure storage workflows. For password storage, use adaptive algorithms like bcrypt instead of MD5 or SHA-1.
Frequently asked questions
Should I use MD5 or SHA-1 for passwords?+
No. MD5 and SHA-1 are considered insecure for password hashing. Use bcrypt (or Argon2 in server environments).
Why does bcrypt output change each time?+
bcrypt uses a random salt, so the same input produces different hashes while still verifying correctly.
Are files uploaded to a server?+
No. File hashing uses FileReader + Web Crypto in your browser only.