spaCy suits developers building NLP applications in Python, particularly for production use and large text workloads.
Free plan WindowsMacLinuxSelf-hosted
Best Natural Language Processing Software 2026
Facts read 23 Sep 2026 – 11 Oct 2026
Natural language processing software can classify text, extract entities, assess sentiment and recognize languages. It can run on a computer, in a browser, through an API or in a self-hosted setup.
The standings: top 10
| Name | Record score | Price from | Try it free | Runs on | Facts read |
|---|---|---|---|---|---|
| 01 spaCy | 4.8 | Free plan | Free plan | Windows, Mac, Linux, Self-hosted | 7 Oct 2026 |
| 02 Azure AI Speech | 4.5 | Free plan | Free plan | Web, API, Self-hosted | 11 Oct 2026 |
| 03 Relative Insight | 3.9 | — | Free trial | Web | 30 Sep 2026 |
| 04 Symanto | 3.8 | — | — | Web, API | 30 Sep 2026 |
| 05 Spark NLP | 3.3 | Free plan | Free plan | Windows, Mac, Linux | 24 Sep 2026 |
| 06 MALLET | 3.2 | Free plan | Free plan | Windows, Mac, Linux | 25 Sep 2026 |
| 07 NLTK | 3.2 | Free plan | Free plan | Windows, Mac, Linux | 24 Sep 2026 |
| 08 Apache UIMA | 3.1 | Free plan | Free plan | Windows, Mac, Linux | 24 Sep 2026 |
| 09 fastText | 3.1 | Free plan | Free plan | Web, Mac, Linux | 25 Sep 2026 |
| 10 Flair | 3.1 | Free plan | Free plan | Windows, Mac, Linux | 24 Sep 2026 |
Use these entries to review free plans, trials, entry-level paid prices, language capabilities, deployment methods and API availability. Entries follow the page's newest-release order and use figures published by the makers.
02
Azure AI Speech
WebAPISelf-hosted Record4.5 Visit
03
Relative Insight
Web Record3.9 Visit
04
Symanto
Symanto suits teams that need to analyze customer or employee text, including online reviews or uploaded data.
WebAPI Record3.8 Visit
05
Spark NLP
WindowsMacLinux Record3.3 Visit
Before you choose
Review free and paid options
A free plan is available from tools on this list, and a free trial is available from tools on this list. Check the plan terms before moving from evaluation to paid use.
Pricing is presented in different ways: Amazon Comprehend shows a starting figure of $0.00, whereas Expert.ai Platform provides pricing on request.
Match the language tasks
Look at each tool's support for text classification, entity extraction, sentiment analysis and language detection. Choose the task coverage that fits the text workflow you need.
Check where it can run
Platforms represented here include Linux, macOS, Windows and the web. APIs and self-hosted setups are also represented, so match the software to your environment.
Review API access
API access can connect language processing to an application or service. Check whether the tool's published deployment options include an API and whether that fits your integration plan.
Read the pricing and licence notes
Free-plan or open-source pricing appears for Apache OpenNLP, Apache UIMA, DeepPavlov, fastText, Flair, Gensim and Hugging Face Transformers. Review the maker's terms before adopting a tool.
Questions
Can natural language processing software be free to use?
Yes. Free plans appear among the tools on this list, and some use free or open-source pricing. Paid options and free trials are also represented.
Can I try an NLP tool before paying?
A free trial is offered by tools on this list. Check the maker's current trial terms before signing up.
What operating environments support NLP software?
The list covers Linux, macOS, Windows, web, API and self-hosted deployments.
What language features should I compare?
Review text classification, entity extraction, sentiment analysis and language detection.
Do these tools provide API access?
The list compares whether API access is available. Review the maker's deployment details to confirm how an API is provided.
How is pricing shown for these tools?
Pricing notes include free plan, free, freemium, paid and pricing on request. Amazon Comprehend lists a starting figure of $0.00.
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