Hash Generator
Generate SHA-256, SHA-1, SHA-512 hashes. Free, no signup required.
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How It Works
Select a hash algorithm — SHA-256 is recommended for most uses
Paste or type the text you want to hash
Click Run to generate the hash — copy it with one click
Why Use OneConvertly to Hash Generator?
100% Private
Your files never leave your device. Everything is processed in your browser.
No Signup Required
Use this tool instantly — no account, no email, no limits.
Works on Any Device
Runs in Chrome, Firefox, Safari, and Edge on desktop and mobile.
Completely Free
No watermarks, no daily caps, no hidden fees.
Frequently Asked Questions
Which algorithm should I use?
SHA-256 is the recommended default — it is widely used and secure. SHA-512 produces a longer hash with higher collision resistance. SHA-1 is available but deprecated for security use.
Can I hash a file?
Currently this tool hashes text input. File hashing support will be added in a future update.
Is the hashing done on my device?
Yes. It uses the browser's built-in Web Crypto API (crypto.subtle.digest). Your input never leaves your device.
Can I reverse a hash back to the original text?
No. Cryptographic hashes are one-way functions by design. You cannot recover the original input from a hash value.
Does it support MD5?
Not currently. MD5 is considered cryptographically broken and insecure. We offer SHA-256, SHA-1, and SHA-512 via the Web Crypto API.
Does it work on mobile?
Yes. The hash generator works in any modern mobile browser that supports the Web Crypto API, which includes all recent versions of Chrome, Safari, and Firefox.
What is SHA-256 used for?
SHA-256 is used for data integrity verification, digital signatures, password hashing, blockchain, and software checksums. It produces a unique 64-character hex string for any input.