Greens Leader Bob Brown says he will be able to pay a $240,000 legal bill without help from businessman Dick Smith.

Senator Brown faced losing his seat in the Upper House if he failed to pay Forestry Tasmania's legal fees after initiating a court case to stop logging in the Wielangta Forest.

He admitted earlier this week he was having trouble paying court costs and Dick Smith offered to help out.

But Senator Brown has told ABC Radio's AM program generous donations from the public have helped him raise the money.

Senator Brown says he will be able to meet the June 29 deadline after more than 1,000 people donated their money.

"A lot of these people have said 'we are not Greens voters, we are Labor voters or we are Liberal voters, but we want to make a donation for Tasmania's forest and for this stand that you have taken for them'," he said.

"There has been the occasional $10,000 or $20,000 but most of them are $7, $10, people putting in $50 and that's the real bulk of it.

"It just shows again the huge majority of people, when it gets down to it, want the forests and the wildlife protected."