Dev tools · alternatives · 2026

24 alternatives to Document Similarity

API to analyse semantic similarity using NLP

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Document Similarity launched in 2015; newer entries below may have overtaken it.

1. 1
   Allen NLP▲72

   An open-source NLP research library, built on PyTorch

   2017 · allenai.org · its alternatives →

2. 2
   General Sentiment ▲59

   Using NLP for sentiment analysis across the web

   2014 · its alternatives →

3. 3NA
   NLP API for text segmentation and per-segment title generation▲9

   2022 · segmentation.succinctly.ai · its alternatives →

4. 4
   ExplainToMe▲182

   Automatic web article summarizer

   2016 · explaintome.herokuapp.com · its alternatives →

5. 5NL
   Natural Language Processing and Text Mining API▲5

   2016 · esapi.intellexer.com · its alternatives →

6. 6
   Atavist▲116

   A web-based word processor as beautiful as Medium

   2015 · magazine.atavist.com · its alternatives →

7. 7GO
   Graph of wikipedia articles semantic similarity (LSI, Python, d3.js)▲54

   Small experiment of visualization of wikipedia articles as a graph using d3.js.<p>Articles with more traffic are bigger. I computed the semantic similarity using LSI with python (gensim) You have to scroll down/right a bit!<p>http://similarityapi.appspot.com/graph/?title=blade%20runner<p>There is also a JSON api: http://similarityapi.appspot.com/api/v1/?limit=100&title=blade%20runner<p>All feedback is appreciated:<p>@lucamartinetti [email protected]

   2012 · similarityapi.appspot.com · its alternatives →

8. 8LI
   Lexical.io – A web app for reading English text▲9

   2016 · lexical.io · its alternatives →

9. 9
   Zillabyte▲87

   An API for analyzing the world's information

   2014 · its alternatives →

10. 10
    Fast text▲6

    Learning of word representations and sentence classification

    2017 · github.com · its alternatives →

11. 11MA
    Milvus – An open-source vector similarity search engine▲8

    2020 · milvus.io · its alternatives →

12. 12ST
    Semantic Text Analysis as a service▲5

    2016 · esapi.intellexer.com · its alternatives →

13. 13ND
    NLP Driven Insights for SEO▲6

    2020 · contento.marketing · its alternatives →

14. 14SA
    Streamlit App to Compare Text Similarity Live▲5

    2022 · similarity-demo.newscatcherapi.com · its alternatives →

15. 15
    fastText▲8

    Efficient text classification and representation learning

    2017 · fasttext.cc · its alternatives →

16. 16NL
    Natural Language Processing and Machine Learning via REST API▲9

    2016 · esapi.intellexer.com · its alternatives →

17. 17
    Semantic Scholar▲5

    Vertical search across academic papers

    2015 · semanticscholar.org · its alternatives →

18. 18IG
    istrumphappy – Google NLP API and Trump's Tweets▲8

    2017 · istrumphappy.com · its alternatives →

19. 19AH
    Automating Highly Similar Translations▲7

    2016 · engineering.khanacademy.org · its alternatives →

20. 20
    Textrazor▲12

    Powerful NLP api , NLP as a Service

    2018 · textrazor.com · its alternatives →

21. 21
    Reductio▲3

    Automatic summarizer text in Swift

    2016 · github.com · its alternatives →

22. 22
    Sonar▲14

    A linting tool for the web

    2017 · its alternatives →

23. 23
    Conceptmeister▲5

    A new app for a quick text analysis

    2017 · play.google.com · its alternatives →

24. 24FN
    FriendlyData – Natural Language Interface for Databases▲9

    2016 · friendlydata.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →