I’m Iñaki, a teacher and solo maker from Spain. I built NinjaNote because I was drowning in my own voice notes: WhatsApp audios, quick reminders in the car, ideas while walking… and then I couldn’t find anything when I actually needed it.
NinjaNote is my attempt to make that mess usable. It lets you:
Send or upload audio (including WhatsApp voice notes)
Get clean, structured notes instead of raw transcripts
Automatically split one long audio into multiple notes
Auto-categorize notes (tasks, shopping, ideas, meetings, etc.)
Use it in 28 languages (with a strong focus on European languages)
On top of that, you can:
Create reminders based on your notes
Edit notes in real time with other NinjaNote users
Share notes via text (copy/paste into any app)
Organize everything into folders
Attach images and/or links to keep related context together
It’s a web app that works on desktop, mobile, and tablets. Tech-wise it’s built with Next.js, Vercel, Firebase, Capacitor, and an LLM layer on top of transcription.
On the landing page you can try a live demo without registration: record or send an audio and see how it turns into notes before signing up.
Right now you get 3 minutes for free to try it out (no credit card). If anyone here wants to test it more intensively and share detailed feedback, I’m happy to grant extra minutes – just let me know in the comments or reach out.
I’d really appreciate your feedback on:
Where the UX or onboarding feels confusing
Any obvious technical or product gaps you see
Concerns about privacy / data handling from your point of view
Link: https://www.ninjanote.app
Thank you for taking the time to check it out. I’ll be around to answer questions and go into technical details if useful.