Indian developer builds offline HTML/CSS/JS invoice generator, saves money

Short summary

A self-taught Indian developer built a fully offline invoice generator in vanilla HTML/CSS/JS as a cost-effective replacement for expensive SaaS tools (₹1,200/month → ₹1,250 one-time). The single-HTML-file tool auto-calculates GST, generates PDFs, and stores data locally for privacy. He's launching on Gumroad with 50% off for the first 10 buyers, targeting freelancers frustrated by monthly subscriptions.

• •Self-taught dev built invoice generator in vanilla HTML/CSS/JS with no frameworks
• •Auto-calculates GST, offline PDF generation, local data storage for privacy
• •Launching on Gumroad for ₹1,250 (₹625 for first 10 buyers) to replace expensive SaaS

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