Are there any websites that offer programming courses for kids?

Tynker.com, udemy.com, mommypoppins.com

There are so many sites. Like Lynda.com,www.tynker.com,www.techrocket.com

YES. https://www.thespruce.com

www.tynker.comm www.makeuseof.com

This side you can use for that: http://www.codingkids.de/machen/programmieren-fuer-kinder-11-tolle-ideen

this is on of best site for learning web tech for both adult and kids, kids need some assistance "https://www.w3schools.com/"

Try this link. Its directly from Google for kids.

https://www.cs-first.com/en/home

Yes For example 

1. At Codecademy, you can take lessons on writing simple commands in JavaScript, HTML and CSS, Python and Ruby. (See this New York Times piece on Codecademy and other code-teaching sites, for a sense of the landscape.).
2. One of many programs geared toward females who want to code, Girl Develop It is an international nonprofit that provides mentorship and instruction. “We are committed to making sure women of all ages, races, education levels, income, and upbringing can build confidence in their skill set to develop web and mobile applications,” their website reads. “By teaching women around the world from diverse backgrounds to learn software development, we can help women improve their careers and confidence in their everyday lives.”.
3. Stanford University’s Udacity is one of many sites that make college courses—including Introduction to Computer Science—available online for free. (See our post on free online courses for more ideas.).
4. If college courses seem a little slow, consider Code Racer, a “multi-player live coding game.” Newbies can learn to build a website using HTML and CSS, while the more experienced can test their adeptness at coding..
5. The Computer Clubhouse, which Resnick co-founded, works to “help young people from low-income communities learn to express themselves creatively with new technologies,” as he describes. According to Clubhouse estimates, more than 25,000 kids work with mentors through the program every year..
6. Through CoderDojo’s volunteer-led sessions, young people can learn to code, go on tours of tech companies and hear guest speakers. (Know how to code? You can set up your own CoderDojo!).
7. Code School offers online courses in a wide range of programming languages, design and web tools..
8. Similarly, Treehouse (the parent site of Code Racer) provides online video courses and exercises to help you learn technology skills..
9. Girls Who Code, geared specifically toward 13- to 17-year-old girls, pairs instruction and mentorship to “educate, inspire and equip” students to pursue their engineering and tech dreams. “Today, just 3.6% of Fortune 500 companies are led by women, and less than 10% of venture capital-backed companies have female founders. Yet females use the internet 17% more than their male counterparts,” the website notes..
10. Through workshops for young girls of color, Black Girls Code aims to help address the “dearth of African-American women in science, technology, engineering and math professions,” founder Kimberly Bryant writes, and build “a new generation of coders, coders who will become builders of technological innovation and of their own futures.”

While we’re at it: bonus! General Assembly offers a variety of coding courses at their campuses across the globe. Additionally, their free online platform, Dash, teaches HTML, CSS and Javascript through fun projects on a simple interface that is accessible from your web browser.

yes there are alot like corsera as an example