Developer launches Roversia: 39+ free browser tools built with vanilla JS and no frameworks

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A solo developer has launched Roversia on Product Hunt, a free and ad-free platform offering over 39 browser-based utility tools. The project was built using vanilla JavaScript with no frontend frameworks or bundlers, keeping the technical stack deliberately minimal. Backend infrastructure relies on Firebase and Netlify Functions for server-side tasks such as PDF processing and API proxying, with zero recurring server costs as a core design goal. Some tools, including an AI-powered background remover, run entirely in the browser using ONNX and Transformers.js without any server round-trips. The developer is seeking community feedback on Product Hunt to identify which tools are most and least useful.

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