Hash Generator
MD5 (128-bit)
—
SHA-1 (160-bit)
—
SHA-256 (256-bit) — recommended
—
SHA-512 (512-bit)
—

Hash Generator Online Free — MD5 SHA1 SHA256 SHA512 — Free Online Tool

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or files online free. All four hashes at once. Hash verification included. 100% browser-based, no server upload.

Free Forever
No Signup
No Upload
100% Private
Browser-based

Features

Built for real developer workflows. No fluff, just the tools you need.

#

All 4 Hashes at Once

MD5, SHA-1, SHA-256 and SHA-512 are all generated simultaneously. Copy whichever you need with individual Copy buttons.

📁

File Hash Verification

Upload any file and generate its cryptographic hash to verify integrity — essential for downloaded software and archives.

✓

Hash Verification

Paste a known hash into the verification field. The tool instantly tells you which algorithm matched.

⚡

Real-time Generation

SHA hashes use the browser's native SubtleCrypto API. MD5 uses a pure JavaScript implementation. Both are instant.

🔑

SHA-256 Recommended

SHA-256 is the industry standard for checksums and data integrity. Use SHA-512 for maximum security.

🔒

Zero Upload

Hashing runs entirely in your browser. Your data never leaves your device — safe for private files and sensitive content.

How to use

Get results in seconds — no account, no file upload required.

1

Enter text or upload a file

Type text into the input field — all four hashes generate instantly. Or click Hash File to load any file.

2

Copy the hash you need

Each algorithm has its own Copy button. Click once to copy the specific hash format required.

3

Verify against a known hash

Paste a known hash (from a download page or database) into the Verify field to check authenticity.

More free tools

Every tool at itsseven is free, private and browser-based.

{}JSON FormatterBeautify & minify JSON✓JSON ValidatorSyntax & schema checker↔Diff CheckerCompare text & code⇄YAML ConverterYAML ↔ JSONb64Base64 ToolEncode & decode Base64🔑JWT InspectorDecode JWT tokens🔗URL EncoderEncode & parse URLs.*Regex TesterLive regex debugger

Frequently asked questions

What is the difference between MD5, SHA-1, SHA-256 and SHA-512?
▾
MD5 and SHA-1 are fast but cryptographically broken — usable for checksums only. SHA-256 and SHA-512 are part of SHA-2, cryptographically secure and suitable for all security-critical applications.
Can I use MD5 for passwords?
▾
Never. MD5 is far too fast for password hashing — it can be brute-forced in seconds with GPUs. Use bcrypt, Argon2 or PBKDF2 for passwords.
How do I verify a downloaded file?
▾
Hash the downloaded file using this tool, then compare the SHA-256 or SHA-512 result to the checksum published on the software's official download page.
Are hash collisions possible?
▾
Theoretically yes. MD5 and SHA-1 collisions have been demonstrated in practice. SHA-256 and SHA-512 collisions are computationally infeasible with current technology.
Does hashing the same text always give the same result?
▾
Yes. Hash functions are deterministic — identical input always produces identical output. This is what makes verification reliable.
What is a salt in hashing?
▾
A salt is random data added to input before hashing, preventing rainbow table attacks. This tool hashes raw input without salting — for password storage, always use a proper hashing library that handles salting automatically.