About this tool
Generate cryptographic hash digests (SHA-256, SHA-384, SHA-512, MD5) and HMAC message authentication codes locally using the hardware-accelerated Web Crypto API.
Hash Generator
Compute SHA-256, SHA-384, SHA-512, MD5, and HMAC hashes locally in your browser using the Web Crypto API.
Example
- algorithm: SHA-256
- text: LilUtils
Output
DEVWaiting
Run the tool to generate output.
When to use this tool
Use Hash Generator when verifying data integrity, generating checksums, or testing HMAC signing flows without dropping into a command-line terminal.
Inputs, Formats & Specifications
- Accepted Inputs
- Any plain text string, optional secret key for HMAC
- Output Formats
- Hexadecimal hash digest (lowercase/uppercase)
- Supported Standards
- SHA-256 (256-bit), SHA-384 (384-bit), SHA-512 (512-bit), HMAC SHA-256, MD5 (128-bit legacy)
- Browser Limits & Scope
- Cryptographic hash functions are one-way; original input text cannot be reversed or decrypted from the hash output.
How to use this tool
- Type or paste your input string into the text input area.
- Select your cryptographic hash algorithm: SHA-256, SHA-384, SHA-512, or MD5.
- Optionally enter a secret key if you want to compute an HMAC SHA-256 message authentication code.
- Copy the resulting hexadecimal digest string in lowercase or uppercase format.
Examples
File / String Integrity Check
Generate a SHA-256 checksum for a code snippet or payload to verify it matches an upstream release manifest.
API Webhook HMAC Signature Verification
Compute an HMAC SHA-256 hash using an API secret key to verify incoming webhook signatures from Stripe, GitHub, or Shopify.