Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text instantly. Runs entirely in your browser using the Web Crypto API. No signup, nothing stored.
How It Works
Using Hash Generator in 3 Steps
Type Your Input
Paste or type any text into the input area. Hashes are computed instantly as you type — no button to click.
Compare Algorithms
Output appears for MD5, SHA-1, SHA-256, SHA-384, and SHA-512 in parallel so you can compare digests at a glance.
Copy and Use
Click Copy next to any algorithm to grab its hash. Toggle uppercase output for tools and integrations that expect capital hex characters.
Use Cases
Who Uses Hash Generator?
Backend Developers
Generate stable cache keys, content fingerprints, and integrity hashes for files served from a CDN — verify uploads against an expected SHA-256.
Security Engineers
Compute hashes during incident response to compare against known IOCs (indicators of compromise) and confirm file authenticity.
Data Engineers
Hash row identifiers for deduplication, generate partition keys, and create deterministic IDs in ETL pipelines.
FAQ
Hash Generator — Frequently Asked Questions
Everything you need to know before you start.
Which hash algorithm should I use?
Use SHA-256 or SHA-512 for security-related hashing (file integrity, fingerprints, content addressing). Use MD5 only for non-security checksums or compatibility with legacy systems — it is broken for cryptographic purposes.
Is my text sent to a server?
No. All hashes are computed locally in your browser using the Web Crypto API (and a pure-JS implementation for MD5). Your input never leaves your device.
Can hashes be reversed?
No. Cryptographic hashes are one-way functions. There is no algorithm to recover the original text from a hash. 'Cracking' a hash means trying many guesses until one produces the same hash, which is only feasible for short, common, or weakly-hashed inputs.
Are MD5 and SHA-1 still safe?
Not for security. Both have practical collision attacks. They are still fine for non-security checksums (file deduplication, cache keys), but never use them for password hashing, signatures, or anything an attacker might attack.
More Free Tools