Open-source IoT (Internet of Things) is now a real technology, quietly helping out in smart homes, with fitness trackers, heavy industry, and city management. By 2025, the IoT ecosystem will see its most rapid growth.

The good news is, you don’t need a big budget to start working in the IoT. Because of open-source IoT frameworks, developers, startups, and enterprises have the opportunity to create flexible, safe, and feature-rich IoT applications, all for a reasonable price.

In this article, we look at the top 2025 open-source IoT frameworks that might be ideal for your future IoT project. Includes information on platforms suitable for businesses as well as tools simple enough for people who work on projects in their spare time.

Why Choose Open Source IoT Frameworks?

Open-source IoT frameworks are systems in software that give you tools and libraries for making IoT apps. All these frameworks are made available for everyone to modify, distribute, and collaborate while coding. The top benefits of using open-source frameworks are

There are many benefits to frameworks that help them stand apart.

Cost-Effectiveness: Money not spent on licenses lets the company focus on developing new things. As a result, it is much easier for startups, educational institutions, and hobbyists with limited resources to enter the field.

Flexibility and Customisation: Developers are able to look at and modify the source code so that the platform matches their project needs. Because of this, reliable solutions that cannot be found in proprietary platforms can be formed.

Community Support: Developing open-source projects is best done by working together with others. A strong community encourages continual growth, offers support on specific challenges, and makes innovation happen more quickly for everyone.

Transparency and Security: Anyone using open source can check the software to make sure it protects security and privacy. Thanks to this level of transparency, users can spot and repair safety problems more quickly than with closed-source peers.

Rich Documentation: There are many tutorials, Q&A sites, and content made by users, so starting with open-source IoT frameworks gets easier regardless of how experienced you are.

Following open standards, IoT frameworks in the open-source world make it easier to combine devices and platforms. In addition, they support scalability, since changes and new features can be added efficiently to accessible code. Open-source platforms are now more often supporting trending edge computing, helping to quickly and locally process data that is key for real-time IoT in homes and factories.

Overall, these features greatly speed up developing IoT systems, cut costs, and help create a robust environment for developing new IoT ideas, so using open-source IoT frameworks becomes necessary for companies and individuals aiming to build scalable, secure, and customizable solutions anytime after 2025.

Top Open Source IoT Frameworks 2025

1. Kaa IoT Platform

Kaa IoT is a highly customizable open-source platform suitable for both small-scale and enterprise IoT applications. It supports device management, real-time data collection, and application development through comprehensive SDKs and APIs.

Key Features:

Complete access to source code for customisations

Strong system for deploying and handling devices

Processing and keeping data in real-time

Systems that provide reliable security

Use Cases:

Industrial IoT

Smart cities

Enterprise IoT solutions made to fit your requirements

Kaa’s features can fit any size project; developers often use it for custom solutions.

2. ThingsBoard

ThingsBoard helps you manage devices, collect data, process it, and visualise it. The platform backs MQTT, CoAP, and HTTP as main IoT protocols and can be placed either in a company’s cloud or on-site.

Key Features:

Ability to run on multiple devices and still function well 

Support for numerous users sharing the same instance 

A rule engine that can be adjusted for event-based workflows 

Ability to use data visualisation widgets on the dashboard

Use Cases:

Automating a home using technology

Industrial monitoring

Many IoT applications are designed for multiple tenants.

ThingsBoard is designed so well that it can handle a large number of devices at once.

3. Eclipse IoT

Eclipse IoT is a project designed by a collaborative community to supply modular frameworks for developing IoT applications. It is possible for developers to only use the needed components with PHP.

Key Features:

Building solutions from modular architecture

Connecting deeply with other Eclipse projects

Lots of support from local groups

Use Cases:

Smart homes

Healthcare monitoring

Automated solutions designed for cars

By collaborating with the community, Eclipse IoT guarantees that things improve and expand.

4. Mainflux

Mainflux is an open-source IoT platform built for safeguarding devices, data, and applications. It deals with various communication methods, and you can put it to work on your site, in the cloud, or use a blend of the two, which is in the cloud or hybrid environments.

Key Features:

Design made to be flexible and grow as needed

MQTT, HTTP, CoAP, and other protocols are supported.

Better methods of handling and analyzing data

It is simple to connect with other systems through APIs.

Use Cases:

Industrial IoT

Smart buildings

Healthcare analytics

Its adaptability and low expense make Mainflux good for any IoT project.

5. Thinger.io

Thinger.io is an IoT platform built on the cloud that aims to be easy to use and supports fast development. You can use device management to process data as it arrives and easily connect it with other services.

Key Features:

Easy devices to use after quick setup

Providing data in real time and storing it also

Connection using API and webhook integration

An interface that is easy for both hobbyists and developers to use

Use Cases:

Building a practical demo

Smaller and mid-sized Internet of Things (IoT) efforts

Uses in education and as hobbies

Developers like Thinger.io because it is easy to use and takes minimal time to deploy.

6. ThingSpeak

ThingSpeak offers everyone the ability to collect, display, and examine sensor data in real time, free of charge. Advanced data processing can be done through the link between Data Management Toolbox and MATLAB.

Key Features:

Easy access to important data as it is collected

Analytics made easier by using MATLAB

No complicated steps to configure sensor data aggregation

Strong community support

Use Cases:

Academic research

Testing IoT applications with prototypes

Environmental monitoring

Developers who want to analyse and visualise data will find ThingSpeak very easy to use.

7. DeviceHive

DeviceHive is an open-source platform for IoT built using microservices and supports many programming languages on Docker and Kubernetes.

Key Features:

A microservice architecture that’s easily scaled

It runs on Python, Node.js, and Java clients.

The software can be placed in either the cloud or on your computers.

There are thousands of helpful plugins.

Use Cases:

Solutions that can be expanded as needed

Industrial automation

Smart city technology

By using microservices and being open to change, DeviceHive supports the rapid and safe development of IoT solutions.

8. Adafruit IO

Adafruit IO is a service for makers and hobbyists that lives in the cloud. It is closely connected to Adafruit’s hardware and includes tools for storing and displaying measured data.

Key Features:

User-friendly logging and interactive displays

Managing devices through a web browser

Combining API with webhook integrations

A large and active maker community

Use Cases:

Home automation

Educational projects

IoT development intended for hobbyists

Adafruit IO is the ideal choice for anyone wanting a simple and powerful solution for IoT.

9. Zetta

Zetta is designed as open-source software with Node.js for building IoT servers that share real-time data between systems.

Key Features:

Developed using Node.js to achieve high performance

Compatible with various types of device protocols

Data collection and processing in real time

Lots of developers are involved in the project

Use Cases:

Smart technology for the home

Fleet management

Solutions for the Internet of Things in retail

Fast and flexible Zetta is well-suited to handling data for real-time Internet of Things applications.

How to Choose the Right IoT Framework

If you’re considering top open-source IoT frameworks, the choice should depend on how the product fits your needs. Follow this quick advice to get a better idea:

Define Your Use Case

Is your network used for home gadgets or more complex industrial work? Are you looking for cloud solutions or to run your workloads on the device?

Think About Scalability

Can the framework scale up with added devices, larger amounts of data, and more complex tasks?

Community and Support

If the GitHub project is well-organised, is consistent with updates, and has a helpful forum, that’s a good sign.

Security and Compliance

Healthcare and finance companies cannot function without complete encryption, different access levels, and proper logging.

The Future of Open Source IoT in 2025

A lot more people are entering the IoT field now. Because edge computing, 5G, and AI are all being used together, demand for open-source IoT frameworks will only rise.

Here’s what we’re seeing in 2025:

More people are using edge-first techniques.

There is high demand for zero-trust security models.

Every site must now be compatible with every device.

Low-code/no-code tool platforms are growing in their capabilities.

If you’re not using open source for your IoT projects yet, you’ll be left behind.

FAQs: 

Q1: What are the best open-source IoT frameworks for enterprise use?Platforms like Mainflux, Kaa IoT, and ThingsBoard are great for companies because they have strong security, the ability to scale, and many tools for handling devices.

Q2: Are open-source IoT frameworks suitable for beginners?Sure, Adafruit IO and Thinger.io have easy-to-use interfaces that make them great options for anyone starting in IoT.

Q3: Can I customise open-source IoT frameworks?Absolutely. It’s possible to modify the code directly and configure the platform how you like using frameworks such as Kaa IoT and DeviceHive.

Q4: How do open-source IoT frameworks handle security?Many open-source platforms include features such as checking devices, protected communication, and secure storage of data. A community scan reveals errors and security flaws very easily.

Q5: Which open-source IoT platform supports real-time data processing?Real-time data streaming and processing are available on ThingsBoard, Thinger.io, and Zetta, so they can serve applications that need quick data insights.

Conclusion

There will be many versatile open-source IoT frameworks serving the needs of small to large projects in 2025. If you want to create an industrial solution using Kaa IoT, design a demonstration quickly on Thinger.io or visualise sensor data using ThingSpeak; there is a platform perfect for you.

Which framework you use depends on what your project aims to do, how skilled you are, and what growth is required. Using these main open-source IoT frameworks will speed up your ability to innovate, lower costs, and provide more secure and scalable IoT solutions.