
hat.sh
Free, fast, secure and serverless file encryption
hat.sh launched on June 9, 2019 with 212 votes, #78 of 2,757 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 7 years on.
What it does
this is a javascript app that provides secure file encryption using the AES-256-GCM algorithm from WebCryptoAPI included in your browser. It's fast, secure and client-side, the app never uploads the files to the server. the app can encrypt any type of files.
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