Developer open-sources privacy-first browser tools as standalone HTML files

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A developer has released a set of browser-based utility tools on GitHub under the MIT license, requiring no npm, build steps, or external dependencies. The tools — including a Base64 encoder/decoder, Unix timestamp converter, and CSS minifier — run entirely in the user's browser without sending data to any server. The project was motivated by concerns that popular free online tools often process user input server-side, risking data logging, third-party sharing, or service discontinuation. Each tool is packaged as a single self-contained HTML file that can be opened directly in a browser. The tools are available via the repository at github.com/enquannacc/aisubtools-browser-tools and hosted at aisubtools.xyz.

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