MD5 Hash Generator – MD5, SHA-1 & SHA-256 Online
Calcon's free Hash Generator computes MD5, SHA-1, and SHA-256 hashes from text or any file. All hashing runs in your browser — no data is uploaded to a server.
Hash Algorithm Reference
| Algorithm | Output Size | Status | Use For |
|---|---|---|---|
| MD5 | 128-bit / 32 hex | Deprecated (security) | File checksums, legacy |
| SHA-1 | 160-bit / 40 hex | Deprecated (security) | Git commit IDs, legacy |
| SHA-256 | 256-bit / 64 hex | Current standard | File verification, certificates |
Frequently Asked Questions
What is an MD5 hash?
MD5 (Message Digest Algorithm 5) is a cryptographic hash function that produces a 128-bit (32 hex character) hash value from any input. It is commonly used for checksums to verify file integrity, but should not be used for security-critical purposes like password hashing due to known vulnerabilities.
What is the difference between MD5, SHA-1, and SHA-256?
MD5 produces a 128-bit (32 hex) hash, SHA-1 produces 160-bit (40 hex), and SHA-256 produces 256-bit (64 hex). Longer hashes have a larger search space, making them harder to reverse. SHA-256 (part of the SHA-2 family) is currently the recommended standard for security purposes.
Can I use MD5 for password hashing?
No. MD5 should not be used for password hashing. It is fast and has known collision vulnerabilities, making it susceptible to brute-force and rainbow table attacks. Use bcrypt, Argon2, or PBKDF2 for password hashing — these are specifically designed to be slow and salted.
What is a hash used for in file verification?
When you download software or a large file, the provider often publishes its SHA-256 hash. After downloading, you generate the hash of your downloaded file and compare it to the published value. If they match, the file is intact and has not been tampered with during transfer.
Related Developer Tools
Base64 Encoder / Decoder
Encode and decode Base64 instantly.
Bcrypt Hash Generator
Generate and verify bcrypt hashes in your browser.
Border Radius Generator
Generate CSS border-radius visually with live preview.
Box Shadow Generator
Generate CSS box shadows visually with live preview.
Color Palette Generator
Create harmonious color palettes from any color.
Color Picker
Pick colors and get HEX, RGB, HSL, CMYK instantly.
CSS Formatter / Beautifier
Format and beautify CSS code instantly.
CSS Gradient Generator
Generate linear, radial, and conic CSS gradients visually.
CSS Minifier
Minify CSS code instantly in browser.
CSS to SCSS Converter
Convert flat CSS to idiomatic nested SCSS instantly.
Get new tools & guides
Occasional updates, no spam.
