Logic Gate & Circuit Simulator
Interactive logic gate simulation for students and engineers
Logic Gate & Circuit Simulator launched on May 31, 2026 with 4 votes, #2,419 of 20,538 launches that month and more than 75% of that year's launches.
What it does
LogicSimulation is a browser-based digital logic simulator that helps students, educators, and engineers build and test logic circuits visually. Create circuits using logic gates, simulate outputs in real time, explore truth tables, and better understand digital electronics without downloads or complicated setup. Built for learning, experimenting, and teaching digital logic directly in the browser.
Build and simulate digital logic circuits in your browser. Drag-and-drop AND, OR, NOT, NAND, NOR, XOR gates. Free, instant, no signup needed.
Does a similar job
all alternatives →- LO
- COCircuitVerse – Online Digital Circuit Simulator2018 · circuitverse.org · ▲145
Explore Digital circuits online with CircuitVerse. With our easy to use simulator interface, you will be building circuits in no time.
Wired Logic – a pixel-based logic simulator2016 · github.com · ▲176Wired Logic - a pixel based logic simulator. Contribute to martinkirsche/wired-logic development by creating an account on GitHub.
- BABOOLR – A digital logic simulator2017 · boolr.me · ▲136
I made a little digital circuit simulator that operates on PNGs2022 · github.com · ▲259This is a little toy project of mine that lets you simulate digital logic graphs. It was inspired by Minecraft's Redstone and the Piet esolang. It's got some serious drawbacks-- you write circuits as PNGs and simulate them with a Python interface. It's slow to run and slow to experiment with. And it is certainly difficult to use for people with any kind of color blindness. But despite that, I hope this can still be a fun toy!
I made a digital circuit drawing and simulation game2024 · github.com · ▲139Inspired by games like Turing Complete/Virtual Circuit Board/Logic World, I tried to make a mix of aseprite and wiredworld/wired-logic, the idea being the user can build a digital circuit using a "fullstack" pixelart creation workflow. The circuit is just an image. The primitives are (i) connected wires which have undefined, 0 or 1 state during simulation (displayed brighter or darker in function of the state) and (ii) NANDs, which are little pixel triangles. During simulation the user can interact with any wire by clicking on it, toggling its state, which is cool for messing…
More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d 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 · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →

Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai



Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com

🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com