The 9 Best Open Source AI Chatbots for Unlimited Chatting

Summary :

Are you checking out the best open-source chatbots to aid your day-to-day operations in your business? We make your search for the best chatbot a bit easier.

Table of Contents

Open Source AI Chatbots

Open Source AI Chatbots

Open-source chatbots are messaging platforms that stimulate a conversation between humans. The open source would mean the original code for the software is distributed for free, and you will be easily able to modify the same to suit your requirements.

The open-source software ensures that you can be assured of better transparency and control. They serve as your ready-to-use solutions for handling your needs in customer-facing solutions or other repetitive tasks.

Chatbot Name Verdict Pricing
PDFgear Chatbot Easy to use and simple chatbot for interaction with PDFs, simple interface Free
BotPress Best suited for both technical and non-technical purposes, best visual no code flows. Free
Microsoft Bot Framework Support for Azure and other frameworks, but needs a good coding knowledge Free

Special Mention: PDFgear Chatbot

PDFgear Chatbot is your best solution to help interact with PDF files. It comes integrated with the new ChatGPT API and can efficiently extract information from large PDF files. The chatbot has been awarded as the best AI summarizer tool. It also comes with most of the PDF editing features, such as commenting, highlighting, and editing.

The Best Free AI Chatbot

PDFgear is an entirely free AI chatbot that allows you to chat and interact with documents.

It may, however, be noticed that PDFgear Chatbot is proprietary software and not open source. However, you would find it offers an excellent performance that matches an open-source tool in many aspects.

Get the Article Summary from PDFgear Chatbot

Get the Article Summary from PDFgear Chatbot

Key features 

  • Chat with any PDF files without limitations
  • Completely free to use chatbot for PDFs
  • An improved privacy
  • Keeps track of your interaction with the tool.

Go to PDFgear website

BotPress

A completely open-source conversational AI solution with support for Natural Language Understanding (NLU). It can help you create your own customized chatbots for use in several areas which include customer support, sales, and marketing.

It provides a template for everyone to create and customize their own LLM bot. The intuitive visual flow builder enables the users to design conversation flows and implement their own content management. To improve business workflows, you may also try out these AI Rewriter software tools.

Additionally, BotPress has established a Discord community to enhance communication and problem-solving among users.

BotPress

BotPress

Key features 

  • Powerful NLP engine
  • Omnichannel deployment across several platforms
  • Integration with existing databases, CRM systems, and other business applications.
  • Highly customizable

Go to the BotPress website

Microsoft Bot Framework

It is also known as the Azure Bot framework. With the framework, you can build your chatbot with the highest degree of customization. The active learning and multi-language support make it stand out from the rest.

It should be the right choice for the developers as the framework is entirely driven by codes. You would need to have a basic knowledge of coding to be able to use the chatbot.

Furthermore, Microsoft Bot Framework will regularly release new features on the website and provide quick links so that users can quickly locate them.

Microsoft Bot framework

Microsoft Bot framework

Key features 

  • Integrates with Cortana, Microsoft Cognitive Services, and more.
  • Language Understanding Intelligent Service (LUIS)
  • Language Understanding Intelligent Service (LUIS)

Go to the Microsoft Bot Framework support website

Rasa

Rasa is your best choice for both voice-based and text-based conversations. The support for synonyms and hyponyms makes it rather easy to train. It can be the right choice for robust context-based conversations. Natural Language Understanding (NLU) and Machine Learning (ML) make it a formidable pick.

Rasa offers a flexible and innovative platform that fully inspires developers. It smartly blends advanced features with user-friendly functionality to enrich the conversational experience.

Rasa Chatbot

Rasa Chatbot

Key features 

  • A platform designed for developers
  • Ease of training the model
  • Possibility of multiple connections
  • Analytical data for use boosting efficiency

Go to the Rasa website

Wit.ai

If you are building a chatbot for Facebook, Wit.ai is the best and most excellent choice that you can rely upon. After being acquired by Facebook (now Meta) in 2015, the sole focus of the chatbot builder has been on Facebook itself. It helps you to create applications such as messaging platforms, and voice assistants.

Wit.ai’s SDK supports multiple programming languages, including Python, Ruby, and NodeJS. However, the limited number of necessary slots and parameters may make training this framework challenging.

Wit.ai Chatbot

Wit.ai Chatbot

Key features 

  • Efficient model training
  • Support for several languages such as Node.js, Python, Go, Ruby and Unity.
  • A powerful NLP engine
  • Completely free to use

Go to the Wi.ai website

BotMan

BotMan offers you a simplified open-source PHP library that helps you in the creation of chatbots. The tool is developer-oriented and will require programming skills. It can be an excellent option for working with PHP libraries. The vast library makes it the most popular open-source chatbot that you can rely upon.

A key and convenient feature is that you can integrate the chatbot logic you develop with various communication platforms such as Amazon Alexa, Slack, Telegram, or even your own website.

Botman Chatbot

Botman Chatbot

Key features 

  • It works as framework agnostic, which means it can work across any framework.
  • Support for multiple messaging platforms such as Slack, Telegram, HipChat, Facebook Messenger, WeChat and many more.
  • NLU functionality included.

Go to the BotMan website.

Tock

Tock is an AI conversational chatbot with open-source functionality. It does not depend upon third-party APIs for building chatbots for your business needs. If you are creating chatbots for IOT, this tool can prove to be an effective and efficient choice.

The chatbot solutions created with Tock are entirely standalone, making them the best choice for embedded systems.

Tock

Tock

Key features 

  • Offers a Visual Studio for building, testing, and monitoring NLP models.
  • Support for Kotlin, Nodejs, Python and REST API.
  • It is built-in support for platforms like Facebook Messenger, WhatsApp, Google Assistant, Alexa, Twitter (now X) and more.

Go to the Tock website

DialogFlow

If you are looking to integrate your business-specific requirements, DialogFlow is an excellent choice that you can rely upon. The chatbot is a great pick for creating friendly conversations and voice-based chat options.

The DialogFlow platform is powered by Google’s machine learning, making it one of the most powerful tools in its category.

DialogFlow

DialogFlow

Key features 

  • Best suited for text-based and voice-based AI assistants.
  • SDK support for popular platforms + supports 20 languages.
  • Integration support for Internet of Things (IoT) integration

Go to the DialogFlow website

Chatterbot

Chatterbot is a python based chatbot and can be an excellent pick for those using Python. The chatbot library can be easily migrated to your Python projects. The chatbot is driven by machine learning technology.

It can also work seamlessly with multiple languages. In fact, you can modify the code to suit any of your preferred languages.

Chatterbot

Chatterbot

Key features 

  • Built-in automation features
  • You can easily edit, modify and customize the chatbot to suit your business needs.
  • The efficiency of the tool improves with the inputs.
  • Language independent.

Go to the Chatterbot website

FAQs

What are open-source AI chatbots and how do they work?

Open-source AI chatbots are conversational agents powered by artificial intelligence, designed to simulate human-like conversations. They use natural language processing (NLP) algorithms to understand and respond to user queries, providing seamless and efficient interactions​.

Are open-source AI chatbots customizable?

Yes, one of the main advantages of open-source AI chatbots is their high customizability. Developers can tailor these chatbots to specific business needs or user requirements, making them highly versatile for different applications​.

Can businesses without coding expertise use open-source AI chatbots?

Absolutely. Many open-source AI chatbots are designed with user-friendly platforms, enabling businesses to deploy and manage them without needing extensive coding knowledge​.

The Concluding Thoughts

Well, those were a few off-the-top-end open-source chatbots that you could put to great use. Depending on your specific business requirements, you can choose a chatbot that rightly meets your business needs. In fact, most of these tools are free, and that would make them the right choice to try out without any monetary issues.

However, if you are looking to interact with your PDFs, the PDFgear chatbot is an excellent pick. It can help you summarize and understand PDFs rather easily. For all other purposes, shuffle through the chatbots that we have covered above and make a learned decision.

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