Best Natural Language Processing Software

Compare the Top Natural Language Processing Software as of June 2025

What is Natural Language Processing Software?

Natural language processing (NLP) software analyzes both written and spoken human languages and interprets them for translation, deep learning and automation purposes. Natural language processing software may also include natural language understanding (NLU) capabilities. Compare and read user reviews of the best Natural Language Processing software currently available using the table below. This list is updated regularly.

  • 1
    IBM watsonx Assistant
    IBM watsonx Assistant (Formerly Watson Assistant) is a market-leading enterprise conversational AI platform that allows you to build intelligent virtual and voice assistants that can provide customers with fast, consistent and accurate answers across any messaging platform, application, device or channel. Using artificial intelligence and large language models, watsonx Assistant learns from customer conversations, improving its ability to resolve issues the first time while removing the frustration of long wait times, tedious searches and unhelpful chatbots. Most chatbots try to mimic human interactions, frustrating customers when a misunderstanding arises. IBM watsonx Assistant is more than a chatbot. It knows when to search for an answer from a knowledge base, when to ask for clarity and when to direct users to a human agent for more assistance. And since it can be deployed in any cloud or on-premises environment – smarter AI is finally available wherever you need it.
    Starting Price: $140 per month
  • 2
    ChatPDF

    ChatPDF

    ChatPDF

    Chat with any PDF. For Students: Enhance your learning experience with ChatPDF. Comprehend textbooks, handouts, and presentations effortlessly. Don't spend hours flipping through research papers and academic articles. Support your academic growth and succeed in your studies effectively and responsibly. For Work: Efficiently analyze your documents. From financial and sales reports to project and business proposals, training manuals, and legal contracts, ChatPDF can quickly provide you with the information you need. Your data is kept confidential in a secure cloud storage and can be deleted at any time. For Curious Minds: Unlock a wealth of knowledge with ChatPDF. Discover new insights and answers from historical documents, poetry, and literature, effortlessly. ChatPDF can understand any language and reply in your preferred one. Satisfy your curiosity and expand your horizons with the tool that can answer any question from any PDF.
  • 3
    SoapBox

    SoapBox

    Soapbox Labs

    SoapBox is built for kids. Our mission is to transform play and learning experiences for kids everywhere using voice technology. Our low-code, scalable platform is licensed by education and consumer companies globally to deliver world-class voice experiences for literacy and English language tools, smart toys, games, apps, and robots to the market. Our independent, proprietary technology delivers 95% accuracy for kids of all ages from 2-12 years old. It also caters to global accents and dialects and has been independently verified to show no racial or socio-economic bias. The SoapBox platform has been built using a privacy-by-design approach. Protecting kids' fundamental right to voice data privacy is a cornerstone of our work and philosophy.
    Starting Price: upon request
  • 4
    Speak

    Speak

    Speak

    Turn your language data into insights, fast and with no code. Join 10,000+ companies, researchers, and marketers using Speak to reduce manual labor, unlock competitive advantages, build stronger customer relationships, and make better decisions. Whether you are doing qualitative research, academic research, marketing research, competitive analysis, digital marketing, or other crucial functions of your organization, Speak has enabled easy individual and bulk uploading of audio, video, and text data. Convert audio and video to text with automated transcription, import CSVs for bulk analysis, capture recordings with an embeddable recorder, create directly in Speak, or use popular integrations to automate capture. Whether it is customer interviews, Zoom recordings, YouTube videos, podcasts, focus groups, Amazon Reviews, tweets, or other crucial qualitative feedback channels, Speak will help you identify actionable, competitive insights in your data.
    Starting Price: $8 per month
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