A legal stoush between two of Australia's most popular social media personalities is over after the parties settled outside court.

Leanne Ratcliffe - better known as 'Freelee the Banana Girl - and her partner Harley Johnstone promised a court they will not disparage popular Instagram personality Kayla Itsines, 23, online.

Ms Itsines, the 23-year-old behind the Bikini Body Guide fitness program, lodged an injunction against the pair in March after alleging the couple posted 'defamatory' remarks on YouTube last month.

Scroll down for video

Kayla v Freelee: Instagram personality Kayla Itsines (left) was taking legal action against Freelee The Banana Girl (right) over alleged defamation

Popular Instagram personality and personal trainer Kayla Itsines (pictured) is responsible for the Bikini Body Challenge

Freelee the Banana Girl, pictured, is most famous for a stunt several years ago where she ate 51 bananas for a YouTube video

In a fiery Facebook post addressed to her followers, Ms Itsines said she was taking court action because of 'false claims that my partner takes steroids' and 'claims I'm starving myself or other people'.

She argued she was 'standing up for myself, friends and family' in bringing the lawsuit.

On Tuesday morning, lawyers told the South Australian Supreme Court that the parties had successfully reached a deal in the last week.

Under the terms of the agreement, Ms Ratcliffe and Mr Johnstone will be barred from making disparaging statements about Ms Itsines in social, print or electronic media.

After the court hearing Ms Itsines' lawyer, Mike Hayes from Lynch Meyer, told Daily Mail Australia the parties had agreed on amended terms of an injunction Ms Itsines had lodged on March 2.

Judge Brian Withers made the orders permanent this morning. He also scheduled a further hearing in May to ensure the orders were carried out.

The case will not proceed to trial. Outside court, Ms Ratcliffe told South Australian newspaper The Advertiser that she would abide by the terms of the deal.

'Recalling every detail of it (the settlement) is a little difficult, but I understand it and I will follow it,' she was quoted saying.

More than a hundred Banana Girl supporters crowded outside court last week, reportedly chanting 'carb the f*** up'.

In a YouTube video posted at the weekend, Ms Ratcliffe told her followers: 'I'm not stressed. I know good will prevail.'

Personal trainer Kayla Itsines is pictured here with her partner Tobi. Daily Mail Australia understands the pair are currently overseas

With a successful business and popular training regime, Ms Itsines (above) has more than 2.3 million followers on Instagram

Ms Itsines is the powerhouse behind the popular fitness brand, the Bikini Body Guide

Durianrider (left) - also known as Harley Johnstone - and Freelee the Banana Girl (right) promote vegan and raw vegan eating options and are popular YouTube personalities

Freelee the Banana Girl and Durianrider took to YouTube have made two statements about the impending legal action in the past week