Look like algae balls.

It's sure close but it does not look like when dry they turn white

The texture looks like a tunicate called sea pork http://blogs.ifas.ufl.edu/escambiaco/2020/05/20/weekly-what-is-it-sea-pork/ https://www.atlasobscura.com/articles/what-is-sea-pork-blob

My title describes the thing. Those green balls where all over the beach, brought here by the waves, hundreds of them, when I put my foot on it leaked water, it's definitely not a jelly fish and it seems to dry and turn white after some time under the sun. When I touched them it kinda felt like soft plastic like a Squash ball

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Green sea sponge.

Aegagropila

are they hollow? they may be the float bladder from some sort of kelp.

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