Free Hash Generator
MD5, SHA-1, SHA-256, SHA-512, SHA3 and BLAKE2 for text, files or HMAC.
Drag & Drop any file here
or click to browse — all file types supported
HMAC combines a secret key with the message to produce an authenticated hash. Only the selected algorithms will be used.
Enter text or upload a file, select algorithms, then click Generate Hashes.
Compare / Verify Hash
Paste a known hash here to verify it against any of your generated results above.
Algorithm Reference
| Algorithm | Output Size | Speed | Security | Common Use |
|---|---|---|---|---|
| MD5 | 128-bit / 32 hex | Very fast | Broken | Checksums, legacy systems |
| SHA-1 | 160-bit / 40 hex | Fast | Broken | Git commits, legacy TLS |
| SHA-224 | 224-bit / 56 hex | Fast | Secure | Constrained environments |
| SHA-256 | 256-bit / 64 hex | Fast | Secure | TLS, code signing, Bitcoin |
| SHA-384 | 384-bit / 96 hex | Moderate | Secure | TLS certificates |
| SHA-512 | 512-bit / 128 hex | Moderate | Secure | Password hashing, archives |
| SHA3-256 | 256-bit / 64 hex | Moderate | Secure | Modern applications |
| SHA3-512 | 512-bit / 128 hex | Slower | Secure | High-security applications |
| BLAKE2b | 512-bit / 128 hex | Very fast | Secure | File integrity, password hashing |
| BLAKE2s | 256-bit / 64 hex | Very fast | Secure | Embedded / 32-bit systems |
See Free Hash Generator — MD5, SHA-256, SHA-512 & More in action
Free Hash Generator — MD5, SHA-256, SHA-512 & More
Generate cryptographic hashes for text or files using MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3-256, SHA3-512, BLAKE2b and BLAKE2s. Type text directly or upload a file up to 100 MB, and get every selected algorithm's hash instantly, output as hex, Base64 or binary.
It also supports HMAC mode (a keyed hash using a secret key for authentication, not just integrity), and a compare/verify box where you paste a known hash to instantly check whether it matches — useful for confirming a downloaded file hasn't been tampered with.
Use it in 4 steps
Choose Text or File mode, and enter your text or upload a file.
Select which hash algorithms you want computed.
Pick an output encoding — HEX, Base64 or binary — and case.
Copy the result, or paste a known hash into Compare/Verify to check a match.
Key features
10 hash algorithms
MD5, SHA-1/224/256/384/512, SHA3-256/512, and BLAKE2b/BLAKE2s, all computed in one pass.
Text and file hashing
Hash typed text or the raw binary content of an uploaded file up to 100 MB.
HMAC support
Generate keyed-hash message authentication codes using a secret key.
Hash verification
Paste a known hash to instantly check whether it matches your input.
A real example, step by step
MD5: 5d41402abc4b2a76b9719d911017c592 SHA-256: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
Who uses this tool
Developers
Verify data integrity or generate deterministic identifiers for content during development.
IT & security-conscious users
Confirm a downloaded file matches the hash published by the original source.
Students learning cryptography
Compare how different algorithms and inputs produce completely different fixed-length fingerprints.
Tips for the best results
- Use SHA-256, SHA-512, SHA3-256 or BLAKE2b for anything security-relevant — MD5 and SHA-1 are broken for that purpose.
- To verify file integrity, hash the file yourself and compare it against the hash the publisher provides, not a hash you generate elsewhere.
- Use HMAC mode when you need to prove a message came from someone who knows a shared secret, not just that the content is unchanged.
- For very large files, hashing may take a moment since it's processed in memory — this is normal.
Common mistakes to avoid
- Using MD5 or SHA-1 for password storage or any security-critical purpose — both are considered cryptographically broken.
- Comparing hashes from two different algorithms and expecting them to match — always compare the same algorithm's output.
- Forgetting that hashing is one-way — you cannot recover the original text or file from a hash.
Frequently asked questions
What is a cryptographic hash?
A fixed-length fingerprint of any input data. The same input always gives the same hash, and even a single changed character produces a completely different result — hashes are one-way and cannot be reversed.
Which algorithm should I use?
For modern security use SHA-256, SHA-512, SHA3-256 or BLAKE2b. MD5 and SHA-1 have known vulnerabilities and should only be used for non-security checksums.
Can I hash a file?
Yes, upload any file up to 100 MB and the tool hashes its raw binary content, not just the filename.
What is HMAC and when should I use it?
HMAC combines a secret key with a hash algorithm to verify both integrity and authenticity — use it to confirm a message came from someone who knows the shared secret.
Do you store my input data?
No, everything is processed in memory and immediately discarded — nothing is logged or stored.
What's the difference between MD5 and SHA-256?
MD5 produces a 128-bit hash and is no longer cryptographically secure; SHA-256 produces a 256-bit hash and remains the standard for security-critical use.
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