Hash Generator — MD5, SHA-2, SHA-3 & Argon2
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, SHA3-512, and Argon2 hashes from any text. All processing runs in your browser — no data leaves your device.
Hash Generator
About these hash functions
- SHA-256 / SHA-512 — SHA-2 family. Recommended for checksums, data integrity, and HMAC.
- SHA3-256 / SHA3-512 — SHA-3 (Keccak). Different construction from SHA-2; resistant to length-extension attacks.
- Argon2id — Winner of the Password Hashing Competition. Memory-hard KDF — use for passwords, not data checksums.
- MD5 / SHA-1 — Legacy. Cryptographically broken — do not use for security purposes.
All hashing runs in your browser using the Web Crypto API — no data leaves your device.
What are cryptographic hashes?
A cryptographic hash function takes arbitrary input and produces a fixed-length digest. The same input always produces the same hash, but you cannot reverse the hash to get the input. Hashes are used for password storage, data integrity verification, and digital signatures.
SHA-256 vs SHA-512
SHA-256 produces a 256-bit (64 hex char) digest and is the most widely used. SHA-512 produces a 512-bit (128 hex char) digest — longer and slightly more collision-resistant. SHA-1 (160-bit) is considered cryptographically broken and should not be used for security.
Why use Hash Generator online?
Hash Generator in the browser saves context switching: no CLI install, no fragile one-liners, and instant feedback for teammates who do not live in the terminal. It is ideal for debugging, demos, and quick checks during code review.
Tips for best results
Work with a sample payload first, then paste production data. Keep privacy in mind: prefer local browser processing for secrets, tokens, and customer data. Bookmark this page for faster access next time.
How to use
- Type or paste text into the input.
- Click Generate Hashes.
- Copy any of the SHA-256, SHA-384, SHA-512, or SHA-1 hashes.
- Review the output and use Copy to paste into your editor, ticket, or chat.
- Need another utility? Scroll to Related Tools below for Hash Generator companions on skybin.io.
- For a deeper walkthrough, read the linked Skybin blog article at the bottom of this page.
Online tool vs terminal
| Terminal / CLI | This tool |
|---|---|
| Install CLI tools or write a one-off script | Open the tool in your browser — no install |
| Look up flags in man pages or Stack Overflow | Paste input or upload files where supported |
| Repeat for each file format or edge case | Get instant visual feedback and copy buttons |
All hashing uses the browser's Web Crypto API — your text never leaves your device.
Frequently Asked Questions
- Is SHA-1 safe to use?
- SHA-1 is considered cryptographically broken and should not be used for security-critical applications like certificate signing or password hashing. It is only included here for compatibility with legacy systems.
- Can I hash a file instead of text?
- This tool hashes text input. For file hashing, use a command-line tool like sha256sum or openssl dgst.
- Is this tool free to use?
- Yes. All Skybin developer tools are free with no account, API key, or usage limits.
- Does my data get sent to a server?
- No. Processing runs in your browser whenever possible. Sensitive input never leaves your device unless a tool explicitly fetches a URL you provide (e.g. OG Validator).
- Can I use this on mobile?
- Yes. The tools work in modern mobile browsers, though a desktop screen is easier for large JSON or PDF workflows.
- How is this different from desktop apps?
- There is nothing to install or update. Open a bookmarked URL and start working — ideal for quick tasks during development or support calls.
- Are there keyboard shortcuts?
- Most tools support standard paste (Ctrl+V / Cmd+V) and select-all in text areas. Copy buttons provide one-click output.
- Does Skybin store my history?
- No. We do not log tool inputs or outputs. Refreshing the page clears in-memory state unless the tool encodes state in the URL.