Download and update

Download a release archive and unpack it. Open index.html in your browser. The application performs calculations locally and works without a network connection.

Choose the quantity, source unit and destination unit, then enter a number. The current release also offers a swap button and temperature conversion.

To update, download a newer release and keep it in a separate folder. There is no automatic executable installation, and the converter stores no settings to migrate.

SHA256SUMS lists the digest of every archive. In a terminal use shasum -a 256 followed by the downloaded file path, then compare the output with the release page. The JSON manifest describes the current version and download URL.

To move from 1.0.0 to 1.1.0, download the delta JSON and open the local update page or apply-update.html from the archive. Select the old index.html and the delta; after SHA-256 verification, save the new file. This runs in your browser without uploading files. The full ZIP remains available as a fallback.