Hash & HMAC Generator

Hash text or files with SHA-1/256/384/512, and create HMACs using a secret key. All offline via Web Crypto.

Hash & HMAC Generator is a secure and efficient Chrome extension that allows you to create cryptographic hashes and HMACs directly in your browser — completely offline. It supports popular algorithms such as SHA-1, SHA-256, SHA-384, and SHA-512 for both text and file inputs. Users can also generate HMACs by entering a secret key for message authentication purposes. Built on the Web Crypto API, this extension ensures fast and reliable processing without transmitting or storing any data externally. It’s ideal for developers, security professionals, or anyone who needs to verify data integrity or perform quick cryptographic conversions. The clean and minimal interface provides instant results, copy functionality, and secure local storage to remember your last-used algorithm or preferences. Lightweight, private, and easy to use — Hash & HMAC Generator brings trusted hashing tools right to your browser.