Hash Generator
MD5, SHA-1, SHA-256.
Loading tool…
About Hash Generator
Paste or type any text and this tool instantly computes its MD5, SHA-1, SHA-256, and SHA-512 hashes as lowercase hex. Each digest sits in its own row with a one-click Copy button, and everything recomputes automatically as you edit, so you always see fresh values.
It is completely free with no sign-up, no limits, and no ads to click through. The tool runs entirely in your browser using the built-in Web Crypto API and an inline MD5 routine, which means your text never leaves your device or touches a server.
Frequently asked questions
- Is this hash generator free to use?
- Yes, it is 100% free with no account, sign-up, or usage limits. Generate as many hashes as you like.
- Is my text or data uploaded to a server?
- No. All hashing happens locally in your browser. SHA-1, SHA-256, and SHA-512 use your browser's native Web Crypto API, and MD5 runs through an inline JavaScript routine, so nothing you type is ever sent, stored, or logged anywhere.
- Which hash algorithms does it support?
- It generates four hashes at once: MD5 (128-bit), SHA-1 (160-bit), SHA-256 (256-bit), and SHA-512 (512-bit), each shown in hexadecimal.
- How is the text encoded before hashing?
- Your input is encoded as UTF-8 bytes before hashing, so accented characters, symbols, and emoji all produce correct, standards-compliant digests. The tool also shows the UTF-8 byte count next to the character count.
- Should I use MD5 or SHA-1 for security?
- No. MD5 and SHA-1 are considered cryptographically broken and are unsafe for passwords, signatures, or security. Use them only for checksums, cache keys, or comparing files. For security-sensitive work, prefer SHA-256 or SHA-512.
- Can I use these hashes to verify a file checksum?
- Yes. Paste the text and compare the generated MD5 or SHA-256 value against a published checksum to confirm the content matches. Note that this tool hashes text input rather than uploaded binary files.