Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 and more hashes from text or files. All hashing runs locally in your browser.
MD5
128-bit · fast but not collision-resistant
SHA-1
160-bit · deprecated for security use
SHA-224
224-bit
SHA-256
256-bit · widely used standard
SHA-384
384-bit
SHA-512
512-bit · strongest standard hash
File Hash
Hash a local file without uploading it. All processing is done in your browser.
Hash Compare
How to Use Hash Generator
To generate a hash, type or paste your text into the input area. The tool instantly computes cryptographic hash values for your input using MD5, SHA-1, SHA-256, and SHA-512 simultaneously. All four hash outputs are displayed side by side so you can copy whichever algorithm you need.
You can also compare two hashes using the comparison tool at the bottom — paste both values and click Compare to verify if they match. This is useful for verifying file integrity, comparing checksums, or checking that a stored password hash matches an entered password.
Frequently Asked Questions
What is a cryptographic hash? expand_more
A cryptographic hash is a fixed-length string of characters produced by running data through a one-way mathematical function. The same input always produces the same hash, and even a tiny change in input produces a completely different hash.
What is the difference between MD5, SHA-1, and SHA-256? expand_more
MD5 produces a 32-character hex hash and is fast but considered cryptographically broken for security purposes. SHA-1 produces 40 characters and is also deprecated for security. SHA-256 and SHA-512 are part of the SHA-2 family and remain secure for current use.
Can I reverse a hash back to the original text? expand_more
No. Hash functions are one-way. There is no algorithm to reverse a hash to the original input. This irreversibility is what makes hashes useful for verifying data without storing the original.
What is SHA-256 used for? expand_more
SHA-256 is widely used for verifying file downloads, digital signatures, blockchain transactions (including Bitcoin), and storing password hashes in secure applications.
Why does changing one character completely change the hash output? expand_more
This is the avalanche effect, a fundamental property of cryptographic hash functions. It ensures that hashes cannot be reverse-engineered or manipulated predictably by slightly altering the input.
Related Tools
All Developer Toolsarrow_forwardJSON Formatter
Pretty-print, validate and minify JSON with syntax highlighting.
Base64 Encode / Decode
Encode strings or files to Base64 or decode Base64 back to text.
URL Encode / Decode
Percent-encode URLs or decode percent-encoded strings.
HTML Encode / Decode
Escape HTML entities or unescape them back to characters.