5 Side Project Ideas for Developers to Monetize as Micro-SaaS in 2025

I’d bet my entire life savings that at least 90% of developers have at least one unfinished side project sitting in their GitHub repos, and only 10% ever see a dollar in revenue.

If you want to join the 10%, then understand that it’s not enough to solve problems through code. You also have to start solving the right problems for the right people.

And that’s where micro-SaaS comes in.

The good thing about this is you don’t need a massive team, a huge budget, or even a feature-packed product to get started. Believe it or not, some of the most successful micro-SaaS products began as weekend projects—built by developers just like you, who saw a problem and decided to solve it.

So how you can turn your side projects into profitable micro-SaaS?

First, The Right Mindset

Let’s get one thing straight: you don’t need to build the next Google to make money.

In fact, trying to solve a problem for everyone is a surefire way to end up solving it for no one. The secret sauce of micro-SaaS is go niche or go home.

Think about it: big companies like Microsoft or Salesforce are busy building tools for the masses. They’re not going to waste time solving hyper-specific problems for, say, freelance dog trainers or indie game developers.

And that’s where you come in.

You target underserved markets so you can create something so valuable to a small group of people that they’ll happily pay for it.

Start small, think specific, and solve a problem so well that your users can’t imagine life without your tool.

5 Micro-SaaS Side-Project Ideas For Developers

Idea 1: Niche Productivity Tools

The Problem:

Most productivity tools are either bloated with features or so generic they don’t actually fit your specific workflow.

If you’ve ever found yourself thinking, “Why can’t this tool just do X?” then you’ve already stumbled on a potential micro-SaaS idea.

The Opportunity:

Niche productivity tools solve one thing really well. Instead of trying to be everything to everyone, they focus on a specific workflow, profession, or use case.

And because they’re so targeted, they feel custom-built.

Real-World Example

Take Raycast (https://www.raycast.com/). It started as a simple app launcher for developers and power users who were tired of slow and bloated alternatives.

But it didn’t stop there.

Raycast became a platform for productivity workflows, that users can extend with custom plugins. It’s now a must-have tool for developers who value speed and simplicity.

What You Can Learn:

Raycast’s success boils down to two things:

1. Solving a specific pain point: It addressed the frustration of slow app launchers.
2. Being extensible: It gave users the power to customize it for their own needs.

Your Next Steps:

1. Identify a workflow bottleneck: Think about your own daily grind. What slows you down? What repetitive task could be automated?
2. Build a lightweight MVP: Use whatever language you’re comfortable with. Keep it simple—focus on solving one problem really well.
3. Validate fast: Share your tool on GitHub, dev.to, Hacker News, or a relevant subreddit. Ask for feedback and iterate based on what users say.

Idea 2: API Wrappers for Niche Use Cases

The Problem:

APIs are powerful, but they can also be a pain to work with. Sometimes it’s the incomplete documentation, the next day it’s handling rate limits, or just figuring out how to integrate.

And if you find it frustrating, imagine how non-technical users feel.

The Opportunity:

You can build a wrapper—a clean, simple interface that hides all the messy stuff under the hood. But instead of building a generic wrapper, focus on a specific use case.

For example, a wrapper that helps small e-commerce stores sync their inventory across platforms, or one that lets podcasters automate their show notes.

Real-World Example:

Look at Pipedream (https://pipedream.com/). It’s a platform that simplifies API integrations and workflows for developers and non-technical users alike.

It provides pre-built components and a visual interface to connect APIs.

What You Can Learn:

Pipedream’s success comes from two key strategies:

1. Simplify the complex: It hides the nitty-gritty details of API integrations behind a simple, intuitive interface.
2. Focus on workflows: It doesn’t just connect APIs—it helps users automate entire processes, saving them time and effort.

Your Next Steps:

1. Pick a niche: Think about a specific industry or use case where APIs are underutilized. For example, could you build a wrapper for fitness apps to sync workout data?
2. Build the wrapper: Use whatever language you’re comfortable with, but keep it simple. Your goal is to make it as easy as possible for users to get started.
3. Validate fast: Share your wrapper in relevant communities—like subreddits, forums, or Slack groups—and gather feedback. Iterate based on what users tell you.

Why This Works:

The beauty of API wrappers is that they solve a real problem (API complexity) while opening up new possibilities for non-technical users. And because you’re building on top of existing APIs, you don’t need to reinvent the wheel—just make it easier to use.

Idea 3: Developer-First Analytics Tools

The Problem:

Analytics tools are everywhere, but a lot are either too bloated or too generic. If you’ve ever tried to use Google Analytics, you know what I mean—endless dashboards, confusing metrics, and a steep learning curve.

The Opportunity:

There’s a growing demand for lightweight, developer-friendly analytics tools that focus on simplicity and privacy.

Think about it: what if you built an analytics tool that’s so easy to set up, it takes less than 5 minutes? Or one that respects user privacy by not tracking personal data?

Real-World Example:

Plausible Analytics (https://plausible.io/) is a lightweight, privacy-focused analytics tool that’s designed to be simple and easy to use. Unlike Google Analytics, Plausible gives you just the metrics you need—without the bloat.

It’s become a favorite among developers and small businesses who value simplicity and privacy.

What You Can Learn:

Plausible’s success comes from two key strategies:

1. Focus on simplicity: It provides just the essential metrics, so it’s easy for users to understand and act on their data.
2. Prioritize privacy: It doesn’t track personal data, which appeals to privacy-conscious users.

Your Next Steps:

1. Identify a gap: Think about what’s missing in existing analytics tools. Is it simplicity? Privacy? Customizability?
2. Build a lightweight MVP: Use a frontend framework like React or Vue.js and connect it to a backend. Keep it simple—focus on solving one problem really well.
3. Validate fast: Offer your tool to small SaaS founders on Indie Hackers or share it in developer communities. Gather feedback and iterate.

Idea 4: Custom Integrations for Niche Tools

The Problem:

Notion, Slack, and Airtable are great, but they’re not perfect. There will always be limitations or gaps in functionality, especially when trying to use these tools to specific workflows.

If you’ve ever thought, “I wish this tool could do X,” you’re not alone.

The Opportunity:

You can create custom integrations that extend the functionality of existing platforms. These integrations solve specific problems for niche audiences, which makes them incredibly valuable to the right users.

For example, what if you built a tool that turns Notion into a CRM for freelancers? Or one that automates Slack reminders for remote teams?

Real-World Example:

Look at tools like Notion2Charts or NotionForms. These integrations extend Notion’s functionality by adding features like data visualization or form creation.

They didn’t reinvent the wheel—they just filled a gap that Notion itself didn’t address.

And because they’re built on top of a popular platform, they have a built-in audience of users who are already invested in the ecosystem.

What You Can Learn:

The success of these tools comes down to two things:

1. Leverage existing platforms: They build on the popularity of tools like Notion, which already have a large user base.
2. Solve specific problems: They focus on a single use case, which makes them indispensable to their target audience.

Your Next Steps:

1. Identify a gap: Think about a popular tool you use regularly. What’s missing? What could make it better for a specific group of users?
2. Build the integration: Use the tool’s API or SDK to create a simple and focused solution. Keep it lightweight and easy to use.
3. Validate fast: Share your integration in the tool’s community forum, Discord server, or subreddit. Gather feedback and iterate.

Idea 5: Open Source with a Paid Tier

The Problem:

Open source projects are awesome, but they’re not always sustainable. Many developers spend time and energy building something valuable, but not earn a single penny from it.

On the flip side, users love open source tools but often hesitate to pay for them—even when they’re willing to pay for proprietary alternatives.

The Opportunity:

You can bridge this gap by offering an open source version of your tool with a paid tier for advanced features.

This gives users the best of both worlds: they can try your tool for free, and if they love it, they can upgrade for more functionality. It’s a win-win: you get to build goodwill with the open source community while still generating revenue.

Real-World Example:

Take Cal.com (https://cal.com/), formerly known as Calendso. It started as an open source alternative to Calendly which offers a free, self-hostable version for users.

But it also included a paid SaaS option for users who wanted advanced features or didn’t want to deal with hosting. This helped it grow quickly while staying true to its open source roots.

What You Can Learn:

Cal.com’s success comes down to two key strategies:

1. Balance open source and monetization: It offered a free version to build trust and a paid version to generate revenue.
2. Focus on user choice: It gave users the flexibility to self-host or use the SaaS version, which caters to different needs.

Your Next Steps:

1. Build the core functionality: Start by creating a solid open source version of your tool. Make it useful enough that people want to use it.
2. Add a paid tier: Identify features that power users or businesses would be willing to pay for, like advanced analytics, priority support, or enterprise-level security.
3. Engage the community: Share your project on GitHub, Reddit, or dev communities. Encourage users to contribute and spread the word.

What You Can Do This Weekend

It’s your turn. What’s one problem you’ve encountered in your daily workflow that could be solved with a simple tool? Could you turn it into a micro-SaaS product?

Here’s your mission, should you choose to accept it: Pick one idea from this list, build an MVP in a weekend, and share your progress with the dev.to community.

Don’t overthink it—just start.

Got an idea? Share it in the comments below. Already building something? Drop a link and let us check it out.

The best part about the developer community is that we’re all in this together.

So let’s collaborate, iterate, and turn those side projects into something that actually pays the bills.

Some Questions You Might Have

1. What’s the difference between a micro-SaaS and a traditional SaaS?

   Micro-SaaS focuses on solving small, niche problems for a specific audience. It’s usually built by a small team (or even a solo developer) and doesn’t aim to be a billion-dollar business.

   Traditional SaaS, on the other hand, targets broader markets and often comes with more complexity and overhead.

2. What if my niche is too small to be profitable?

   A small niche isn’t a bad thing—it means less competition and more loyal users. If your product solves a real pain point, even a tiny audience can generate meaningful revenue.

3. Can I run a micro-SaaS as a solo developer?

   Absolutely. Many micro-SaaS products are built and maintained by solo developers. The key is to keep your scope small and focus on solving one problem really well.

4. What are the biggest mistakes to avoid when launching a micro-SaaS?

   • Overbuilding: Don’t waste time adding features no one asked for.
   • Ignoring feedback: Listen to your users and iterate quickly.
   • Underpricing: Charge what your product is worth, even if it feels uncomfortable at first.

5. How do I market my micro-SaaS without a marketing team?

   Start by sharing your product in communities where your target audience hangs out—like subreddits, forums, or Slack groups. Word of mouth is powerful, especially in niche markets.

Before You Start Coding…

Let’s keep this simple: you don’t need to build the next unicorn to make money as a developer.In fact, you don’t even need to build something groundbreaking. All you need is to solve a small, specific problem for a group of people who are willing to pay for it.

So here’s your challenge: This weekend, pick one problem, build a simple MVP, and share it with a community.

Who knows? That side project collecting dust in your GitHub repo might just turn into your next revenue stream.