Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
Hashes convert input to fixed-length strings that fingerprint data without revealing the original bytes. MD5 (128-bit), SHA-1 (160-bit), and SHA-256 (256-bit) remain common in legacy pipelines, Git plumbing, and modern signatures respectively. SHA-256 is the default for new security work. Pare Dev hashing updates live as you type, which helps compare downloads or redacted configs before you commit.
MD5: still handy for quick legacy checksums but never rely on it for integrity against attackers. SHA-1: appears in Git commit IDs and some older TLS stacks you may be asked to reproduce. SHA-256: default for passwords (still pair with salts in apps), signatures, and blockchain references. Use this page for file integrity triage, password hash comparison in CTFs, or API signature rehearsals. Large inputs may block the main thread briefly, so chunk text when possible. Hashes are one-way—if someone demands reversible output, you need encryption, not hashing. Packaging pipelines often compare npm tarballs against published manifests—paste both digests here before you escalate supply-chain alerts to security leadership. Hardware security modules export truncated fingerprints; never confuse those previews with full-length proofs.
How to generate hashes
- Enter input — Type or paste text in the input area.
- Select algorithm — Choose MD5, SHA-1, or SHA-256. SHA-256 is recommended for security.
- Copy the hash — Copy the hash for checksums, API signatures, or verification.
FAQ
Is the hash generator free?
Yes. Free on this page, with limits noted per tool. All processing runs in your browser.
Does it work offline?
Yes. Once the page loads, hashing works offline. No data is sent to any server.
Which hash should I use?
SHA-256 for security. MD5 for legacy checksums. SHA-1 for Git commits.
Can I hash files?
Yes. Paste file content or use the browser file picker if supported.
Is hashing reversible?
No. Hashes are one-way. You cannot recover the original from the hash.