
VoltSim
Realtime electronic circuit simulator with intuitive UI
VoltSim launched on December 8, 2021 with 74 votes, #735 of 2,707 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 4 years on.
What it does
VoltSim is an electronic circuit simulator for android. It lets you create circuits and simulate them with an intuitive UI. It has a lot of interactive visualization like potential difference and current, 4 channel oscilloscope, multimeter, etc.
Does a similar job
all alternatives →
Volt: A Prototyping Starter Kit2020 · framer.com · ▲230Learn interaction design in Framer with this UI kit

- IMI made some transistor animationsJul 2026 · brandonli.net · ▲212
Hi HN, I made some animations of the most important kinds of transistors using my semiconductor simulation, details of which are on the page. I tried to make the visuals as realistic as possible while also aiming for clarity. If you want to go beyond the charge carriers and look at, for example, the electric field, you can do so in the simulation software. The desktop software also has less common devices like IBGTs and SCRs that have similar animations. The last thread about my software was posted here about a year ago: https://news.ycombinator.com/item?id=43942279
Experimenters Circuits2024 · experimenters.app · ▲161Educational online virtual electricity lab, try for free

Volt – front end tooling for Phoenix that runs inside the BEAMMay 2026 · github.com · ▲25Elixir-native frontend build tool — dev server, HMR, and production builds for JavaScript, TypeScript, Vue SFCs, and CSS. No Node.js required. - elixir-volt/volt
More dev tools this month
the category →
Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.
Dev tools · 2d ago · github.com


open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 30d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 28d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 25d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 22d ago · talanoa.email
Source: Product Hunt launch ↗
Launched alongside, December 2021
the whole month →
Powerful enhanced experience for Twitter
Life & fun · 2021 · blackmagic.so

A beautiful, clean, modern web UI for Wikipedia. Enhance your Wikipedia experience with a redesigned look, new features and customization.
Life & fun · 2021 · modernwiki.app



BitsForDigits▲624A partial buyout marketplace free for bootstrapped founders
Commerce · 2021 · flippa.com