MD5 & SHA Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of text.
About MD5 & SHA Hash Generator
The MD5 & SHA Hash Generator computes MD5 (128-bit), SHA-1 (160-bit), SHA-256 (256-bit), and SHA-512 (512-bit) cryptographic hashes of any text input simultaneously in your browser using the Web Crypto API, with zero data transmitted to a server. Hash functions are the foundation of data integrity verification, digital signatures, password storage (when combined with salt and a KDF), content deduplication, and cache invalidation across all of software engineering. All four hashes update in real time as you type, with output available in both hex and Base64 encoding.
How to Use
Type or paste your text into the input field — all four hash values compute and display in real time as you type, eliminating the need to click a button for fast iteration. Select the output encoding format (hex or Base64) from the toggle to match your target system's expected format. Click the copy icon next to any hash to copy only that value, or use Copy All to get a formatted block of all four hashes for security documentation, release notes, or test assertion files.
Common Use Cases
- Developers generating SHA-256 checksums for software release artifacts, Docker image layers, or build outputs to publish in security advisories and enable downstream integrity verification
- Backend engineers computing salted SHA-256 or SHA-512 hashes for password storage during development and understanding why MD5 and SHA-1 are insufficient due to their computational speed vulnerabilities
- API developers computing HMAC pre-images and verifying SHA-256 base values before feeding them into HMAC-SHA256 signatures for webhook authentication or request signing
- DevOps engineers generating MD5 checksums for legacy content deduplication systems, CDN ETag values, or file storage backends that use MD5 as a content-addressable storage key
- Security testers verifying that application hash implementations produce the correct output for known test vectors before deploying cryptographic code to production