Productivity
Form Builder from One Sentence
Describe the form you need and get a working, shareable form
Beginner8h1–2
LLMNext.jsJSON Schema
17/20AI Invoice Generator
Creates clean invoices from plain text in seconds.
Beginner12h1–2 people16/20 fit
Build AI Invoice Generator for freelancers in ~12h with 1–2 people. Stack: Next.js + PDF library + LLM.
Why it wins: Clear business value and very fast demo.
Build flow
01 · Problem
Freelancers waste time formatting invoices manually.
02 · Solution
Describe the work in text. Generate a clean PDF invoice.
03 · Build
- 1Text input box
- 2LLM → structured JSON
- 3Invoice template
- 4PDF download
04 · Demo
Type one sentence → downloadable invoice appears.
MVP checklist
- Plain-text input
- Line-item extraction
- PDF export
- Saved client details
Tech stack
| Tech | Role | |
|---|---|---|
| Next.js | Frontend + API routes | Web |
| PDF library | PDF generation | Tool |
| LLM | Language model | AI |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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