▲ 6 r/u_TanujLabs+2 crossposts

I built a free MQTT Explorer + Device Simulator to test IoT backends without physical hardware

One problem kept coming up while building IoT projects: backend development would stall because the hardware wasn't ready yet.

So I built a browser-based MQTT Explorer & Device Simulator that lets you develop and test MQTT workflows without waiting for ESP32s, sensors, or PLCs.

Current features:

  • Connect to any MQTT broker (TCP/WebSocket)
  • Publish and subscribe to topics in real time
  • Explore your MQTT topic tree
  • Simulate virtual devices
  • Send custom JSON payloads
  • Test backend APIs before hardware arrives
  • Runs entirely in the browser (no installation)

Some use cases I've been using it for:

  • Testing IoT dashboards
  • Developing Home Assistant integrations
  • Validating backend logic
  • QA testing MQTT message flows
  • Simulating smart home devices
  • Industrial automation prototypes

The simulator can mimic things like:

  • Temperature & humidity sensors
  • GPS trackers
  • Energy meters
  • Custom devices with your own payloads

The project is still in its early stages, and I'm actively improving it.

Planned features include:

  • Device template library
  • Payload generator
  • Saved broker profiles
  • Webhook testing
  • Team workspaces
  • More protocol integrations

I'd really appreciate feedback from the community.

What features would make a tool like this genuinely useful in your workflow?

You can try it here:
https://mqtt.tanujlabs.com

Feedback, bug reports, and feature requests are all welcome. I'm building this based on real developer needs.

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u/TanujLabs — 10 days ago
▲ 3 r/u_TanujLabs+2 crossposts

Lightweight Infra Monitoring Tool for SaaS

I’ve been building https://monitor.tanujlabs.com, a simple monitoring system for SaaS and API servers.

Most tools are either too heavy or too complex for early-stage systems, so I’m focusing on something lightweight and practical.

Right now I’m working on a server agent that you install directly on your machine:
https://github.com/tanujlabs/monitor-agent

It handles basic things like:

  • uptime & health checks
  • service status
  • simple performance signals
  • instant alerts

Still early stage, and I’m open to feedback, improvements, or collaboration from other devs working on infra / SaaS / monitoring tools.

If anyone’s building in this space, happy to connect.

u/TanujLabs — 2 months ago

No Job? No Problem. Here's How to Work Directly in 2026

You know, with how fast technology is moving these days, especially with all these powerful AI tools becoming more accessible, it really feels like we might not need traditional companies to act as middlemen anymore.

Think about it. Even if you can't land a regular 9 to 5 job, that doesn't have to be a dead end. There are other ways to do the same kind of work, just more directly. No corporate gatekeeper standing in between.

Whether it's picking up freelance gigs, working on your own AI assisted projects, or building direct relationships with clients, technology has opened up so many possibilities. You can offer your skills, create real value, and earn a living on your own terms.

So instead of stressing over not fitting into the traditional job market, maybe we can start seeing that as an opportunity to work more freely and independently, using the tools we have right now to connect directly with the people who actually need what we can do.

Steps to Work Directly Without a Company Middleman

  1. Figure out what you're actually good at. Grab a piece of paper or open a note on your phone. Write down the things you enjoy doing and do well. This could be anything from writing and designing to helping people organize their schedules or editing videos. These are your tools.
  2. Look around at what AI can do for you. Spend a little time exploring free or cheap AI tools like ChatGPT, Canva, or other helpers you find online. Think of them as your personal assistant. They can help you work faster and handle things you used to need a whole team for.
  3. Decide how you want to work directly. Ask yourself what sounds most like you. Do you want to pick up small freelance jobs? Build your own little projects with AI help? Or work closely with a few clients who need you regularly? Any path works as long as there's no corporate gatekeeper in the middle.
  4. Put up a simple sign that says "I'm here." You don't need a fancy website. Just set up a basic portfolio on a free platform like Carrd, or even just a clean LinkedIn profile. Show a few examples of what you can do. That's enough to start.
  5. Go find people who need your help. Look for work in places where real people hang out. Try freelance sites like Upwork or Fiverr. Check Twitter, Reddit, or local Facebook groups. Send a few friendly emails to small businesses you like. You're not applying anymore. You're just starting conversations.
  6. Tell them how you can make their life easier. When you reach out to someone, don't talk like a resume. Just say, "I noticed you might need help with X. I can do that for you, and here's how." Keep it simple and human.
  7. Name your own price. Decide what feels fair to you. You can charge by the hour, by the project, or even a small monthly fee. Pick a payment method that's easy, like PayPal or Venmo. You're in charge now.
  8. Protect yourself with a simple agreement. This doesn't have to be scary. Find a free contract template online or use a tool like Bonsai. Just write down what you'll do, when you'll finish, and how much you'll get paid. A little paper saves a lot of headaches.
  9. Do great work and be someone people trust. Focus on making your first few clients really happy. Ask them to tell their friends about you. A good word from a real person is worth more than any job application.
  10. Keep learning as the world changes. New AI tools pop up all the time. Stay curious. The more you can do on your own with technology, the less you'll ever need a traditional company to stand between you and the work you love.

You don't have to fit into the old system anymore. You can just start small, stay human, and use the tools we have right now to connect directly with people who need what you can do.

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u/TanujLabs — 2 months ago