Hash Generator & Checksum Calculator
Generate cryptographically secure SHA-256, SHA-512, SHA-1, and MD5 message digests client-side.
Batch workspace
Format multiple files locally in one run.
How to use the Hash Generator
Paste code or file
Paste your raw TEXT text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a Hash Generator?
Generate cryptographically secure SHA-256, SHA-512, SHA-1, and MD5 message digests client-side. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Algorithm | Select a specific hashing digest or compute all popular hashes simultaneously. |
| UPPERCASE hex letters | Outputs hash characters in uppercase format. |
Frequently Asked Questions
How are cryptographic hashes computed?
Hashes are calculated locally in your browser using the native Web Crypto API (`crypto.subtle.digest`) for maximum security and performance.
Is my secret text sent to a server for hashing?
No. Computation runs 100% inside your browser memory. Your secrets, passwords, or files are never uploaded.
Which hash algorithm is recommended for security?
SHA-256 and SHA-512 are standard for cryptographic security. MD5 and SHA-1 should only be used for legacy checksum verification.
Does case sensitivity matter in input?
Yes. Cryptographic hash functions are strictly case-sensitive; even a single character case difference produces a completely different hash digest.
Can I generate hashes in uppercase?
Yes. Check 'UPPERCASE hex letters' in the options panel.