Freelance tools as single HTML files need no backend or signup

Short summary

A developer shares their approach to building freelance business tools (rate calculator, proposal generator, contract generator, invoice tracker) as single self-contained HTML files with no build step, backend, or signup. All state lives in localStorage and all logic is client-side JS, meaning zero infrastructure to maintain and complete privacy by default. The trade-off is no cross-device sync or collaboration, but for tools used a few times a week, that's acceptable.

• •Four freelance tools built as single HTML files with no backend or build step
• •All state in localStorage, all logic client-side, privacy by default
• •Trade-offs: no sync, no collaboration, user manages own backups

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