Life & fun · alternatives · 2026

24 alternatives to Sonar

A linting tool for the web

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Sonar launched in 2017; newer entries below may have overtaken it.

1. 1GA
   Gutenberg – A static site engine as a single executable▲241

   2017 · getgutenberg.io · its alternatives →

2. 2SA
   Sukhoi – A flexible and extensible Webcrawler in Python▲131

   2017 · github.com · its alternatives →

3. 3MA
   Monkberry – a JavaScript library for building web user interfaces▲115

   2016 · monkberry.js.org · its alternatives →

4. 4PA
   Pup – A command-line HTML parser▲126

   2014 · github.com · its alternatives →

5. 5SA
   Scraperjs – A versatile web scraper▲192

   2014 · github.com · its alternatives →

6. 6PA
   Peekier – A new way to search the web▲120

   2016 · peekier.com · its alternatives →

7. 7JA
   jTools – a collection of JavaScript web components with MIT license▲106

   2019 · bossanova.uk · its alternatives →

8. 8DW
   Designing Web Applications▲105

   2012 · nathanbarry.com · its alternatives →

9. 9HA
   HtmlWasher – An HTML cleanup tool▲75

   2017 · htmlwasher.com · its alternatives →

10. 10AL
    A lambda expression visualizer for the web▲43

    2013 · brycec.github.com · its alternatives →

11. 11BS
    Blabr – Scientific Computing for the Web▲106

    2015 · blabr.io · its alternatives →

12. 12SA
    Scrapple – A framework for creating semi-automatic web extractors▲29

    2015 · github.com · its alternatives →

13. 13DA
    DubJS: A New Way to Build Web Apps▲57

    2012 · dubjs.org · its alternatives →

14. 14OA
    OxJS - a JavaScript Library for Web Applications▲44

    2012 · oxjs.org · its alternatives →

15. 15IA
    IronDB – a resilient key-value store for the browser▲73

    2018 · github.com · its alternatives →

16. 16AM
    A Multi-billion page web crawler in the cloud▲14

    2017 · mixnode.com · its alternatives →

17. 17AA
    ABCWeb – A Go Web Framework▲50

    2017 · github.com · its alternatives →

18. 18AE
    An experimental Web Browser▲59

    2015 · github.com · its alternatives →

19. 19DA
    Dejavu – a modern, open-source data browser for Elasticsearch▲33

    2016 · appbaseio.github.io · its alternatives →

20. 20AM
    A modular, durable web-crawler for Clojure▲29

    2016 · github.com · its alternatives →

21. 21AO
    An open source web crawler for the Mwmbl non-profit search engine▲6

    2022 · github.com · its alternatives →

22. 22FI
    Flems.io – A Single File, Embeddable Web Sandbox▲10

    2017 · flems.io · its alternatives →

23. 23AM
    A minimalist's web clipping (Chrome extension)▲12

    2014 · piconka.com · its alternatives →

24. 24D1
    Dejavu 1.0 – An open-source data browser for Elasticsearch▲9

    2017 · github.com · 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 →