Developer builds 200 tools as single HTML files, citing privacy and zero dependencies

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A developer has built around 200 web tools as standalone single HTML files, each with inline CSS and JavaScript and no external dependencies or build steps. The approach means files work offline in any browser indefinitely, can be shared via email or USB, and carry no risk of dependency rot or broken toolchains. Because no server is involved, sensitive user data such as documents or API keys never leaves the browser, offering stronger privacy guarantees than policy-based promises. The method does have limits: there is no shared state between files, no component reuse, and the developer sets a rough ceiling of 3,000 lines before a project warrants becoming a full application. The developer argues that many tools currently shipped as SaaS products with accounts and subscriptions are functionally simple enough to work as a single file.

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