Pleas for help from young victims of family violence too often go unanswered and many feel invisible, with the support on offer geared towards adults.

That's the verdict from Safe Steps research based on interviews with victim-survivors in their teens and early 20s, sparking a fresh push for national online support services.

Some victim-survivors aged 16-25 told lead researcher Kate Fitz-Gibbon of how no action was taken when they reported family violence.

Many felt invisible as because they thought help was often targeted towards adults or they only got help once their situation reached "crisis point".

"Any system that requires children to be at breaking point before acting is not a system that is keeping them safe," she told AAP.

"Each ignored report is a child left in harm's way.

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