Student Richard O'Dwyer said he is looking forward to returning to normality after striking a deal with US authorities over his TVShack website.
"I'm happy it's finally over," he told the BBC. "I still maintain I never thought I was committing a crime.
"I'm glad the US has decided to drop the case. It's a pity the UK wasn't able to resolve this."
He added: "I'm looking forward to getting back to university and see all my friends."
- Richard O'Dwyer could have faced jail if convicted of the allegations.
- The allegations were brought following a crackdown by the US Immigration and Customs Enforcement agency.
- The agency claimed the TVShack.net website earned more than $230,000 (£147,000) in advertising revenue.
- US authorities obtained a warrant and seized the domain name in June 2010.
- It is thought Mr O'Dwyer will return to the UK with his family today.
Earlier this year Home Secretary Theresa May approved Mr O'Dwyer's extradition, which he appealed.
Richard O'Dwyer's deal with the US is "a first" in extradition cases, his lawyer has said.
Under the agreement, O'Dwyer must pay US authorities £20,000 and not break any US laws, "associate only with law abiding people" and work regularly in a lawful occupation.
A student who ran a website where users could stream pirated films has "avoided a conviction" after paying £20,000 to US authorities, his lawyer has said.
Richard O'Dwyer, from Sheffield, ran the TVShack website hosting links to pirated films and TV programmes.
But after a court hearing in New York, the 24-year-old avoided extradition and conviction by signing a Deferred Prosecution Agreement.
As a result he paid £20,000 to the authorities, representing the profits he made from TVShack between December 2007 and November 2009.
The money will be distributed among victims whose copyrights were infringed by TVShack.
University undergraduate Richard O'Dwyer, who created a website which helped people watch films and TV shows for free, has reached an agreement to avoid extradition to the US over copyright infringement allegations, the High Court was told.
Nigel Farage, the leader of UKIP, says: "This is appalling news and once again shows that our Government seems more than happy to hand over its citizens to the US without a care in the world."We saw this with my friend Chris Tappin, and now with Richard O'Dwyer.
"This treaty is totally one-sided and needs serious reform."Chris and Richard should be allowed to prove their innocence under British law in a British court, not taken on a plane to the other side of the world and thrown into an American jail.
"The Prime Minister should stop cosying up to president Obama and put British people first for once."