Funny story: Microflow started as a small tool I built for my design students so they could prototype with hardware without getting stuck in Arduino code.
I kept adding features, students kept pushing it further, and somewhere along the way it grew into a genuinely useful no-code prototyping tool.
What was supposed to be a teaching aid got a little out of hand, oops 😅
The "prototype hardware without getting stuck in Arduino code" wedge is the right one - the C++/toolchain setup is exactly where beginners bail. When you outgrow the no-code layer, can you eject to editable Arduino/C++ (or at least read the generated firmware), or are you locked into Microflow's runtime? And does it flash boards straight from the browser over WebSerial, or does it need a local daemon installed?
The drag and drop interface felt really intuitive, set up a basic prototype in about 10 minutes without touching any code. Nice to see it stays open source too.
love that the whole thing is open source and free forever, that kind of commitment to keeping tools accessible is honestly rare. also the focus on prototyping specifically is a nice change from all the bloated "do everything" platforms out there.
About Microflow on Product Hunt
“Microcontrollers made simple.”
Microflow launched on Product Hunt on July 16th, 2026 and earned 81 upvotes and 7 comments, placing #25 on the daily leaderboard. Microflow is a set of tools to make it easier to start prototyping for interactivity. Fully open-source, forever free!
Microflow was featured in Design Tools (261.3k followers), Open Source (68.6k followers), Prototyping (71.5k followers), GitHub (41.3k followers) and Vercel Day (26 followers) on Product Hunt. Together, these topics include over 81.7k products, making this a competitive space to launch in.
Who hunted Microflow?
Microflow was hunted by Sander Boer. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Microflow stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Sander Boer
Hey Product Hunt 👋,
Funny story: Microflow started as a small tool I built for my design students so they could prototype with hardware without getting stuck in Arduino code.
I kept adding features, students kept pushing it further, and somewhere along the way it grew into a genuinely useful no-code prototyping tool.
What was supposed to be a teaching aid got a little out of hand, oops 😅
Would love to hear what you think!