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Best Natural Language Processing Software in 2026

Natural language processing software helps work with written or spoken language. Depending on the tool, you can classify text, extract entities, measure sentiment, or detect a language through a local platform, web service, API, or self-hosted setup.

  1. 1

    Azure AI Speech

    by Azure AI Speech
    Free plan APISelf-hostedWeb
    7.5 Free plan Visit site
  2. 2

    spaCy

    Free plan LinuxMacSelf-hosted+1

    spaCy offers a broad set of NLP components and tools for training, packaging and deploying custom pipelines.

    7.1 Free plan Visit site
  3. 3

    Apache UIMA

    Free plan LinuxMacWindows
    6.4 Free plan Visit site
  4. 4

    fastText

    Free plan LinuxMacWeb
    6.3 Free plan Visit site
  5. 5

    Flair

    Free plan LinuxMacWindows
    6.2 Free plan Visit site
  6. 6

    Gensim

    Free plan LinuxMacWindows
    6.2 Free plan Visit site
  7. 7

    HanLP

    Free plan LinuxMacWindows
    6.2 Free plan Visit site
  8. 8

    Hugging Face Transformers

    Free plan LinuxMacWindows
    6.1 Free plan Visit site
  9. 9

    MALLET

    Free plan LinuxMacWindows
    6.1 Free plan Visit site
  10. 10

    NLTK

    Free plan LinuxMacWindows
    6.1 Free plan Visit site
  11. 11

    Spark NLP

    Free plan LinuxMacWindows
    6.1 Free plan Visit site
  12. 12

    DeepPavlov

    Free plan Linux
    6.0 Free plan Visit site
  13. 13

    PaddleNLP

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
  14. 14

    Google Cloud Natural Language API

    by Google Cloud (Google LLC)
    Free plan API
    5.9 Free plan Visit site
  15. 15

    Polyglot

    Free plan LinuxMacWindows
    5.9 Free plan Visit site
  16. 16

    Stanford CoreNLP

    Free plan LinuxMacWindows
    5.8 Free plan Visit site
  17. 17

    Relative Insight

    Free trial Web

    Relative Insight focuses on comparing language across text datasets and linking analysis to verbatims.

    5.6 Pricing on request Visit site
  18. 18

    TextRazor

    Free plan Web
    5.6 Free plan · paid from $200/mo Visit site
  19. 19

    Stanza

    Free plan
    5.4 Free plan Visit site
  20. 20

    TextBlob

    Free plan
    5.3 Free plan Visit site
  21. 21

    VADER Sentiment

    Free plan
    5.2 Free plan Visit site
  22. 22

    Symanto

    Paid APIWeb

    Symanto Insights Platform combines review collection, text analysis, filtering, and export, with translation support beyond its three named analysis languages.

    5.1 From €0.11 Visit site
  23. 23

    Amazon Comprehend

    by Amazon Web Services (AWS)
    Paid WebAPI
    4.7 From $0.00 Visit site
  24. 24

    Expert.ai Platform

    Paid Web
    4.6 Pricing on request Visit site
  25. 25

    Apache OpenNLP

    Paid
    4.4 Open source Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare the tasks you need, deployment options, API access, and the listed paid starting point. Check whether a free plan or trial covers your usage, and review the licence when you need to read or change source code.

Questions

What tasks can NLP software handle?

The comparison covers text classification, entity extraction, sentiment analysis, and language detection. Support varies by tool.

Are free NLP tools available?

Yes. Apache OpenNLP, DeepPavlov, fastText, Flair, Gensim, and Hugging Face Transformers are listed as free options.

Do NLP tools offer free plans or trials?

Items on this list offer free plans or free trials. Check the terms and limits for the tool you are considering.

Where can these tools run?

Listed deployment platforms include Linux, macOS, Windows, web, API, and self-hosted setups. The available platform depends on the tool.

Can I access NLP software through an API?

API access is a comparison field. Check the individual tool details to confirm whether an API is available.

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