MD5/SHA Hash Generator | Generate Secure Hashes Instantly
Use our online tool to generate and verify MD5 and SHA hashes for strings and files, ensuring data integrity and authenticity. Ideal for encoding passwords and verifying file integrity.
What Is a Hash Generator?
A hash generator turns any text or file into a fixed-length hash (a digital fingerprint) using algorithms like MD5, SHA-1, SHA-256, SHA-384 and SHA-512. Hashes verify file integrity and detect tampering — the same input always gives the same hash, but you cannot reverse it. This tool runs entirely in your browser.
Drop a file here or click to browse
Any file type. Large files are read in chunks.
Selected file: ()
Paste an expected hash to check whether your text or file matches it.
Private & offline: text and files are hashed locally in your browser and never leave your device.
Hashes
128-bit — checksums only, not secure
160-bit — legacy, deprecated for security
256-bit — recommended for security
384-bit — strong security
512-bit — strongest, recommended
Security note: Use SHA-256 or higher for anything security-related. MD5 and SHA-1 are broken and must never be used to hash passwords — use bcrypt, scrypt, Argon2 or PBKDF2 with a salt for that.
How to Use
- Pick a mode: hash text, hash a file, or compare against an expected hash.
- Type or paste text, or drop a file — hashes update instantly.
- Switch between uppercase and lowercase output.
- Copy any hash with one click, or copy them all at once.
Key Features
- Live, real-time hashing as you type
- MD5, SHA-1, SHA-256, SHA-384 and SHA-512
- Hash files of any type and size
- Uppercase or lowercase output
- Compare and verify against an expected hash
- 100% in-browser — your data never leaves your device
- One-click copy for every hash
Use this tool from your AI agent
Free JSON API and Model Context Protocol (MCP) server. No signup, no API key, CORS open. Designed for Claude, ChatGPT, Cursor, scripts and frontend apps.
curl -X POST https://mate.tools/api/v1/hash.php \
-H "Content-Type: application/json" \
-d '{"text":"hello world","algorithms":["sha256","md5"]}'import urllib.request, json
req = urllib.request.Request(
"https://mate.tools/api/v1/hash.php",
data=json.dumps({"text":"hello world","algorithms":["sha256","md5"]}).encode(),
headers={"Content-Type": "application/json"},
)
with urllib.request.urlopen(req) as r:
print(json.load(r))const r = await fetch("https://mate.tools/api/v1/hash.php", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({"text":"hello world","algorithms":["sha256","md5"]}),
});
console.log(await r.json()); Add to claude_desktop_config.json (Claude Desktop), ~/.cursor/mcp.json (Cursor), or any other MCP-compatible client:
{
"mcpServers": {
"mate-tools": {
"command": "npx",
"args": ["-y", "@mate-tools/mcp-server"]
}
}
}Common Use Cases
- Verify a downloaded file matches its published checksum
- Confirm data has not been altered or corrupted
- Generate checksums for backups and transfers
- Detect duplicate files by comparing hashes
- Create message digests for signing and logging
Frequently Asked Questions
MD5 produces a 128-bit hash, SHA-1 produces 160 bits, and SHA-256 produces 256 bits. Longer hashes resist collisions better. MD5 and SHA-1 are considered broken for cryptographic use, while SHA-256 (and higher) is still recommended for security.
No. Hash functions are one-way by design, so you cannot mathematically reverse a hash to recover the input. That is exactly what makes hashing useful for integrity checks and password storage.
Hash functions are deterministic: the same input always produces the same output. This consistency is what lets you compare hashes to confirm data has not changed.
Yes. All hashing happens locally in your browser using the Web Crypto API (and a bundled MD5). Nothing you type or upload is ever sent to a server.
No. Plain MD5/SHA hashes are too fast for password storage. Use a dedicated password hashing algorithm such as bcrypt, scrypt, Argon2, or PBKDF2 with a unique salt.
Switch to Compare / verify mode, load the downloaded file, paste the checksum the publisher provided, and click Verify. A match means the file is intact and unmodified.
