Skip to content
You must be logged in to sponsor josdejong

Become a sponsor to Jos de Jong

@josdejong

Jos de Jong

josdejong
Rotterdam

I'm Jos de Jong, a passionate programmer. In my spare time I love to work on the open source projects jsoneditor and mathjs and some other small projects. I started them long time ago because I needed them myself in my daily life as programmer and engineer. And this is what keeps me motivated: these projects solve an actual need of developers like me, working with JSON data on a daily basis, or working with advanced mathematics in a modern web application. The projects are in good shape, and there is plenty of ideas and improvements just waiting to be implemented.

If you care about jsoneditor or mathjs like I do, please support me via Github Sponsors :)

Current sponsors 16

@grinry
@AJamesPhillips
@codecov
@FrontendMasters
@dvd101x
@syntaxfm
@farley13
@NullDev
@roboflow
@MRumpold
@NicolasCARPi
@rdnt
@octue
@LambdaTest-Inc
@christianpetty
@sathoro
Past sponsors 31
@rual
@xiaohk
@georgemarklow
Private Sponsor
@cshaa
@parsify-dev
@mitrakov
@szul
@semasquare
@mattvague
@tronfamily
@mariusmitrofan
@le-cardinal
@gdaroch
@joelpalmer
@superstructor
@crazydan
@slutske22

Featured work

  1. josdejong/mathjs

    An extensive math library for JavaScript and Node.js

    JavaScript 14,508
  2. josdejong/jsoneditor

    A web-based tool to view, edit, format, and validate JSON

    JavaScript 11,692
  3. josdejong/workerpool

    Offload tasks to a pool of workers on node.js and in the browser

    JavaScript 2,109
  4. josdejong/lossless-json

    Parse JSON without risk of losing numeric information

    TypeScript 432
  5. josdejong/ducktype

    Flexible data validation using a ducktype interface. For JavaScript and Node.js.

    JavaScript 90
  6. josdejong/propagating-hammerjs

    Extend hammer.js with event propagation

    JavaScript 40

Learn more about sponsoring developers and organizations.

Report abuse

Select a tier

$ one time

Choose a custom amount.