Does anyone recommend a virtual serial ports emulator app?

I’m working on a project that depends on creating virtual serial ports for testing communication between two applications. I need an emulator app that is compatible with my development environment because the tools I tried so far haven’t worked. Any suggestions or advice about which software to use would really help.

Deciding on a Virtual Serial Ports Emulator? Here’s My Take

So, let’s just drop the PR talk for a minute—I’ve played with a bunch of these virtual serial port tools, and honestly, your wallet and wishlist really drive the outcome. Case in point: this virtual serial ports emulator.

Quick Rundown and My Two Cents

Look, I’ve been burned by shoddy serial port splitters before—either they bomb out under stress, or they’ve got interfaces straight out of 1996. This one? It just did what it said it would: slice up or combine serial ports with zero drama. Merge, split, whatever, all hassle-free.

Real-World Use (Because “Perfect” Doesn’t Exist)

Alright, nothing’s truly “perfect”—let’s not kid ourselves. But for the average user who wants to merge a couple of ports or split traffic between devices, you get what you show up for. Got a mess of GPS emulators, industrial sensors, and one stubborn old CNC machine? No problem. This handled every Frankenstein setup I threw at it, even when I ran simultaneous virtual port connections for two different mapping tools and a legacy data logger, all without so much as a hiccup.

Not Just Hype—Does the Job

Would I tell my boss to buy it if we needed maximum flexibility and zero nonsense? Yeah, probably. It just works quietly in the background and doesn’t bombard you with endless up-sell reminders or ads for other utilities.

If you’re looking to split or merge serial ports—either because some half-abandoned device in your lab refuses to cooperate, or you’re juggling too many connections for your comms analysis—this tool is honestly a solid bet.

Try it, or don’t, but it won’t let you down in regular use.

6 Likes

Not to rain on anyone’s parade (including @mikeappsreviewer, who’s definitely got their favorites), but I’ve slogged through enough so-called “serial port emulators” to develop trust issues with half of them. Either you get some half-functioning freeware that mysteriously crashes every time you try a port merge, or the interface makes you feel like you’re hacking into a ‘90s movie supercomputer. I’ll be blunt—most out there simply don’t work right with modern Windows builds and updated dev environments. So, if reliability is non-negotiable and you want docs and customer support that isn’t just a zombie FAQ, I’d strongly recommend giving Virtual Serial Port Driver a whirl.

Look, what sets this virtual COM port emulator apart isn’t just the clean UI or basic port-pairing—everyone promises that. It’s the stability with newer frameworks, fast port creation/removal, and robust handling under stress-tests (think thousands of messages/sec, not just trickle data). Integration with custom app development stacks? Yup, handled that. Plus, it lets you create unlimited virtual serial port pairs, reroute traffic, and monitor data flow in real time for debugging. No weird restrictions unless you’re using the trial. Sure, it’s not free, but not having to restart your testbed every half hour is truly priceless.

To keep it fair—some people have different priorities. If you’re just quickly simulating a single loopback, try the open source ones. But if you actually want to trust your test results and not have your nerves shredded when demo day hits, this is probably the one you want. More info and download link here: check out what this virtual COM port emulator can do for serious devs.

Not infallible, but if you’re tired of surprises, this should cover about 98% of use cases. The magic bullet? Maybe not. The one you actually want to install twice? Yeah, probably.

I see @mikeappsreviewer has already talked up some virtual port emulators (and yeah, most options either look ancient or just choke under more than two connections). But let’s be real—sometimes you need more than just a port splitter; you need legit flexibility, especially if your dev setup is picky (looking at you, weird microcontroller SDKs).

Personally, I’ve tried more than a few, but Virtual Serial Port Driver always ended up being my “set-and-forget” tool. It actually creates virtual COM port pairs, not just splits an existing one. If you’re doing two-app testing, stuff like echo, loopback, or port bridging is right there, and it’s much less crash-happy than some of the “freeware with open dialogs everywhere” apps out there.

One thing I disagree about: “it just works in the background.” Eh, kinda. It’s smooth most of the time, but every once in a while if you’re running custom baud rates or funky flow control configs, you’ll hit the occasional quirk. Nothing deal-breaking, but worth mentioning if your project is non-standard.

Want it quick? Forget jumping through hoops or popups. Just go to set up your virtual com ports right here. Super straightforward install, doesn’t try to force extra junk on your system.

Short version: Virtual Serial Port Driver is the one I keep coming back to for actual dev work—not just toying around. It’s definitely worth a look if you haven’t already banged your head against it. YMMV, but beats the “didn’t connect” error roulette I get with a lot of others.

Alright, quick hit list for anyone still weighing virtual serial port emulators:

Pros of Virtual Serial Port Driver:

  • Actually creates true virtual COM port pairs, not just splits existing hardware.
  • Super stable under heavy dev testing—doesn’t bomb with multiple apps or toolchains running.
  • Slick install, no bundled junk, simple UI.
  • Features like echo, loopback, port bridging are built-in (makes bidirectional testing painless).

Cons:

  • Not free—if you’re just tinkering on a hobby project, the price tag might sting a bit.
  • Occasionally weirds out with nonstandard flow or baud settings (a rare thing, but it’s there).
  • Windows-only; if you dabble in Linux or macOS land, you’re out of luck.

Some folks love VSPD for complex test setups, some figure it’s overkill. I’ve been down the VSPE and Eltima routes—VSPE is ok for single pair quickies but starts coughing when stressed, while Eltima’s GUI feels like a time capsule (to put it nicely) and gets confusing with advanced configs.

If your workflow revolves around testing two apps talking over serial (and doesn’t need physical cables draped across your desk), “Virtual Serial Port Driver” really does streamline things. Minimal guesswork, keeps the dev cycle moving. Not flawless, but the quirks are manageable. Depending on your OS and how wild your comms scenarios get, it might just be the least annoying tool in the bunch.