Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes for text or files locally.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes using Web Crypto API.
What is the Hash Generator?
The Hash Generator is a fast, 100% private tool for computing cryptographic checksums and message digests. Cryptographic hash functions take an arbitrary input string or file byte stream and produce a fixed-length hexadecimal digest. They are fundamental building blocks of digital signatures, password verification, data integrity verification (checksums), and Git commit identification.
Our tool uses the browser's native SubtleCrypto API (`window.crypto.subtle.digest`) to calculate hardware-accelerated SHA-1, SHA-256, SHA-384, and SHA-512 hashes, alongside a pure JS engine for legacy MD5 checksums.
Supported Hash Algorithms
- SHA-256: 256-bit hash. Industry standard for SSL/TLS certificates, Bitcoin, and file verification.
- SHA-512: 512-bit hash. High-security cryptographic digest offering ultra-strong collision resistance.
- SHA-384: 384-bit truncated SHA-512 variant used in US government NSA Suite B cryptography.
- SHA-1: 160-bit legacy hash used in Git commit IDs and legacy systems.
- MD5: 128-bit legacy checksum widely used for quick file checksum verification.
Key Features
- Real-Time Text Hashing: Hashes update instantly as you type.
- File Hashing: Drag & drop any local file to compute cryptographic checksums without uploading the file to a server.
- Uppercase / Lowercase Toggle: Switch output format between lowercase (`a-f`) and uppercase (`A-F`).
- One-Click Copy: Copy individual hashes or copy all generated hashes at once.
How Does the Hash Generator Work?
1. Choose Input Type: Text Input or Local File Upload.
2. Type or Drag File: Input text or select a file from your device.
3. Instant Calculation: View MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests computed simultaneously.
4. Copy Digest: Click Copy next to any generated hash string.
Formula & Calculation Method
Digest Bit Sizes:
- MD5: 128 bits = 32 hex characters
- SHA-1: 160 bits = 40 hex characters
- SHA-256: 256 bits = 64 hex characters
- SHA-384: 384 bits = 96 hex characters
- SHA-512: 512 bits = 128 hex characters
Deterministic Property:
Identical inputs always yield the identical hash output. Changing even a single bit in the input produces a completely different hash digest (the avalanche effect).
Example Calculation
Input String: "ProCalc"
- MD5: `a64b9777174db9e34a654c6001a4e23a`
- SHA-1: `d3fa1ed30007ad68b3f269a685c2c77d6923b01a`
- SHA-256: `4e4b476ca8d8108a735a42095cf07c4583fb22c8fa46bc458d348a2119ef5f6d`
Frequently Asked Questions
**Digest Bit Sizes:** - **MD5:** 128 bits = 32 hex characters - **SHA-1:** 160 bits = 40 hex characters - **SHA-256:** 256 bits = 64 hex characters - **SHA-384:** 384 bits = 96 hex characters - **SHA-512:** 512 bits = 128 hex characters **Deterministic Property:** Identical inputs always yield the identical hash output. Changing even a single bit in the input produces a completely different hash digest (the avalanche effect).
Disclaimer: All developer utilities run 100% locally in your browser. None of your code, tokens, passwords, or input data are sent to or stored on remote servers.