Printable Handwriting

AI-powered customizable handwriting worksheet generators.

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February 13, 2026 I survived the 2025 "AI-generated spaghetti code" trap. Here is how I refactored my Next.js SaaS and launched it. 🚀

Hi Indie Hackers! I’m Xin Wan, a full-stack engineer, and I just launched Printable Handwriting.

The journey to get here was a massive learning curve. Back in 2025, I heavily relied on AI coding assistants to build the MVP. The result? It worked visually, but the codebase was an unmaintainable, tangled mess. Adding any new feature felt like walking through a minefield.

I recently bit the bullet and did a complete rewrite using Next.js and spec-kit to enforce strict modularity and maintainability. It was painful, but the performance and developer experience are finally where they need to be.

With a solid foundation, I’ve finally rolled out the complete toolset I envisioned to help people systematically improve their handwriting aesthetics. The platform now features 5 targeted generators:

  • Lines: For basic pen control and stroke stability.

  • Alphabet: To build a solid foundation with core letters.

  • Print: For clean, highly legible formal writing.

  • Cursive: Designed to improve writing speed and flow.

  • Name: Specifically for practicing and designing signatures.

But the core feature I'm most proud of is our AI Handwriting Analyzer. Instead of just giving you blank sheets, users can upload their current handwriting. The AI analyzes their specific style, recommends the most suitable fonts to practice, and generates a highly targeted training plan with custom materials.

While I'm still battling the SEO game and figuring out how to pass the AdSense "low value content" filters (currently pivoting to hardcore, high-quality blog posts about paper physics and ink bleeding mechanisms to build E-E-A-T), the technical side is finally stable.

I would absolutely love it if you could test out the AI analyzer or try generating a signature worksheet. Any harsh feedback on the Next.js frontend performance or the AI's accuracy would be incredibly valuable!

2 Comments

  1. 1

    Congrats on the launch, looks solid. How are you currently thinking about acquiring early users and gathering feedback?

  2. 1

    Congrats on pushing through the rewrite. With user handwriting uploads feeding into AI analysis, how are you validating object-level access control on stored files and generated outputs?

About

I built Printable Handwriting because I noticed a frustrating gap in available handwriting resources. Most websites only offer rigid, pre-made PDFs that don't cater to individual learning curves or specific practice need