Hash Generator – Free Online MD5, SHA-1, SHA-256 & SHA-512 Tool
Generate cryptographic hashes from any text or file — MD5, SHA-1, SHA-256, and SHA-512 — all at once, instantly in your browser. Supports hex and Base64 output, uppercase/lowercase toggle, and a one-click hash verification to check if a computed hash matches an expected checksum. The File Hash tab lets you drag and drop any file and compute its fingerprint entirely client-side — nothing is ever uploaded. Perfect for developers, security professionals, and anyone needing to verify download integrity or generate checksums.
Verify Hash (optional)
How to Use the Hash Generator
How to Use the Hash GeneratorWhat is a hash function?
A cryptographic hash function takes any input and produces a fixed-length fingerprint (hash). The same input always gives the same output, but even a single character change produces a completely different hash. Hashes are one-way — you cannot reverse a hash back to the original input.
Algorithm comparison:
| Algorithm | Output size | Security | Common use |
|---|---|---|---|
| MD5 | 128-bit (32 hex chars) | ⚠ Broken | File checksums, legacy systems |
| SHA-1 | 160-bit (40 hex chars) | ⚠ Deprecated | Git commits, legacy TLS |
| SHA-256 | 256-bit (64 hex chars) | ✓ Secure | Bitcoin, SSL/TLS, passwords |
| SHA-512 | 512-bit (128 hex chars) | ✓ Secure | High-security applications |
Features:
- Text Hash tab: Type or paste any text — all four hashes appear simultaneously in real time.
- File Hash tab: Drag & drop any file to compute its hash. Everything happens in your browser — no file is ever uploaded to any server.
- Verify Hash: Paste an expected hash to instantly see if it matches. The tool auto-detects the algorithm from the hash length.
- Output formats: Hex (lowercase or uppercase) and Base64.
- Copy each / Copy all: Copy individual hashes or all four at once in a labelled format.
