Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text at once. Free, instant and private — every hash is computed in your browser and nothing is uploaded.
How to generate multiple hashes at once
- Enter your text. Type or paste the string, message or file contents you want to hash into the box above.
- See all five digests. MD5, SHA-1, SHA-256, SHA-384 and SHA-512 are calculated together and update instantly as you type. Toggle Uppercase output if needed.
- Copy what you need. Use the Copy button next to any hash, or Copy all hashes to grab every digest in one labelled block.
About this tool
A hash function maps any input to a fixed-length fingerprint that changes completely if even one byte of the input changes. This multi-hash generator shows the five most common digests side by side so you can pick the right one or compare against a checksum published in a different format. MD5 and SHA-1 are fast but cryptographically broken — fine for detecting accidental corruption but not for security. SHA-256, SHA-384 and SHA-512 belong to the SHA-2 family and remain secure for integrity checks, digital signatures and file verification.
All five hashes are computed from the UTF-8 bytes of your text: MD5 uses the SparkMD5 library and the SHA algorithms use the browser's built-in Web Crypto API. Everything runs locally on your device, so your text is never uploaded, stored or logged, and the tool continues to work offline once the page has loaded. Accented characters and emoji are hashed correctly because the input is encoded as UTF-8 before hashing.
Frequently asked questions
Which hash should I use?
For security-sensitive integrity checks and signatures, use SHA-256 or stronger. MD5 and SHA-1 are only appropriate for non-adversarial tasks like spotting accidental file corruption, because attackers can craft collisions for them.
Is my text sent to a server?
No. Every hash is generated in your browser with JavaScript and the Web Crypto API. Your input never leaves your device, so it is safe for private or confidential data.
Why do MD5 and SHA-1 show a warning about security?
Both have known collision attacks, meaning two different inputs can be forced to share the same hash. That makes them unsafe for passwords, certificates or tamper protection. They are kept here because many older systems and checksums still use them.
Can I verify a file's checksum with this?
This tool hashes text you type or paste. To verify a downloaded file, paste its published checksum text alongside, or use a file-hashing utility, then compare the values character by character — they must match exactly.