As a parent or teacher, it can be difficult to keep kids engaged in reading. Fortunately, there are many sites that offer free online books for kids, making it easy to find a variety of books that will capture and maintain their interest. Here are some of the best sites to find free online books for kids:

1. Project Gutenberg: This site offers over 60,000 free eBooks, including many classic children’s books. These books are available in a variety of formats, including EPUB, Kindle, and plain text.

2. International Children’s Digital Library: This site offers a wide selection of multicultural children’s books in different languages from around the world. The goal of the site is to promote the appreciation of cultures around the globe.

3. Open Library: With over 1.7 million free eBooks, Open Library has a particularly strong selection of classic children’s books, including many titles from the likes of Beatrix Potter, Lewis Carroll, and E. Nesbit.

4. Children’s Book Trust: The Children’s Book Trust is a non-profit organization that distributes books to children across India. Their website offers free access to many of these books, including a wide range of educational materials.

5. Free Kids Books: This site offers a large collection of free eBooks for kids, including picture books, chapter books, and educational materials. There is also a strong selection of books in Spanish.

6. Amazon Kindle Kids’ Books: Although Amazon Kindle books are usually not free, they offer a selection of free eBooks for kids that can be read on a Kindle device or through the Kindle app.

7. Read.gov: This site is managed by the Library of Congress and features a large collection of classic children’s books, many of which are available to read online for free.

8. Oxford Owl: This site is designed to help children develop their reading skills. In addition to offering a wide selection of free eBooks, there are also various resources and activities available to help children learn to read.

In conclusion, with so many amazing resources available online, it’s easier than ever to find free online books for kids. Whether you’re looking for classic literature or more contemporary titles, the sites listed above offer a wealth of options to keep kids engaged in reading.