A woman filmed herself having sex with her three young children and uploaded it online.

A vile mum could face life behind bars for filming herself sexually and indecently assaulting her three young children and uploading the images to a paedophile site.

The woman admitted to 26 counts of sexual intercourse with a person under the age of 10 and 5 counts of using a child under the age of 14 to make abusive material.

She also pleaded guilty to five counts of inciting an indecent act on a person under the age of 16 and knowing it was being filmed and five counts of producing or disseminating child abuse or material.

She was charged last year after an international hunt to identify an abused child captured on a paedophile website, the Sydney Morning Herald reported.