MD5 / Hash Generator
Free MD5 and SHA hash generator online — no signup required. Compute MD5, SHA-1, SHA-256, and SHA-512 hashes for any text or file instantly in your browser. 100% client-side, files never leave your device.
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Hash will appear here
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Hash will appear here
Features
- MD5 hash generator for text and files
- SHA-1, SHA-256, and SHA-512 support
- File hash / checksum verification
- Instant hashing as you type
- Shows hash length in bits
- All hashing is done locally — files never leave your browser
Frequently Asked Questions
What is an MD5 hash?
MD5 (Message Digest 5) is a cryptographic hash function that produces a 128-bit (32-character hex) fingerprint of any input. It is commonly used to verify file integrity and store password checksums, though it is no longer recommended for security-critical applications.
What is the difference between MD5, SHA-1, SHA-256, and SHA-512?
These are all cryptographic hash algorithms but differ in output size and security. MD5 produces 128 bits, SHA-1 produces 160 bits, SHA-256 produces 256 bits, and SHA-512 produces 512 bits. Larger bit sizes are more resistant to collisions. For security use, SHA-256 or SHA-512 are recommended.
How do I verify a file checksum?
Upload the file to our hash generator, select the same algorithm (usually MD5 or SHA-256) used by the software provider, and compare the generated hash with the official checksum. If they match, the file is authentic and unmodified.
Can hashes be reversed?
No. Hash functions are one-way. You cannot mathematically reverse a hash to get the original input. However, common inputs can be found using rainbow tables (precomputed hash lists). That is why passwords should be salted before hashing.