Resonance

A virtual grand piano powered by real concert grand piano .

What it does

Grand Piano — A beautiful virtual piano with realistic sound

RA
RoboPianist, a piano playing robot simulation in the browser2023 · kevinzakka.github.io · ▲260
JI
Just intonation keyboard – play music without knowing music2023 · ad8e.pages.dev · ▲331
This is a keyboard in just intonation. It can play the notes a piano can. The big difference from a piano is that all the notes become consonant. At least, when you want to play a dissonant chord, you are clearly opting in to it because it's clear which notes are dissonant to each other. You won't bump into a dissonant note by mistake. You can play without knowing any music theory. Hit arbitrary notes with the rhythm you want, and the pitches will work. Not understanding the buttons is fine. Even rolling your elbow around your keyboard is fine. If you are a musician and press the wrong key…
Coffee PianoMay 2026 · coffeepiano.com · ▲101
Browser music and piano studio with visual harmony tools
DeepJ2018 · ▲120
AI-composed piano music in real time
Seaboard GRAND2014 · ▲74
Radical Musical Keyboard: completely new type of instrument
Cloud Piano2020 · ▲83
Real-time piano duetting over the internet!

Dograh▲592
The open source VAPI alternative
Dev tools · 26d ago · dograh.com
Meridian▲530
Don't let your work go unnoticed. Get promoted!
Dev tools · 21d ago · meridiona.com
x1▲516
Lovable for iPhone apps go from idea to App Store
Dev tools · 12d ago · x1.new
Open-Source eInk Bike Computer▲408
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com
The GTM Co-Founder▲402
Open-source GTM skills for technical founders
Dev tools · 30d ago · gtmcofounder.com
Nuphos▲380
The AI-Native DevOps Workspace.
Dev tools · 25d ago · nuphos.ai

Brila▲1,367
One-page websites from real Google Maps reviews
AI · Apr 2026 · brila.ai
AG
A game where you build a GPU▲964
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
IB
I built a tiny LLM to demystify how language models work▲915
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
Fathom 3.0▲803
AI meeting notes: now bot-free, in ChatGPT & Claude + more
AI · Apr 2026 · fathom.ai
BC
Brutalist Concrete Laptop Stand (2024)▲786
Life & fun · Apr 2026 · sam-burns.com
IB
I built a frontpage for personal blogs▲783
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app