Alternative for Germany, a far-right political party under surveillance by intelligence services for suspected extremism, made huge gains in the country’s general election Sunday, with the center-right Christian Democratic Union likely to lead coalition talks to form the next government.

Exit polls show the center-right Christian Democratic Union party leading, with the AfD party heading towards the strongest showing of the far-right since World War II.

The Christian Democratic Union and its allied Christian Social Union secured the largest share of votes in the German federal election, exit polls show.

Germany's opposition conservatives won the national election on Sunday, putting leader Friedrich Merz on track to be the next chancellor while the far-right Alternative for Germany came in second, its best ever result, projections showed.

The Christian Democratic Union has won a plurality in the Bundestag, preliminary exit polls suggested Sunday, while the far-right AfD has come in second.

Germany’s centre-right CDU and CSU parties have won the federal elections with about 28.5 to 29 per cent of the vote according to exit polls, paving the way for CDU leader Friedrich Merz to become chancellor at a time of economic and political upheaval in Europe’s largest democracy.

The far-right AfD likely will score its best ever result as Europe's ailing economic powerhouse lurches rightwards. The conservative CDU/CSU bloc is set to win, but will be unlikely to secure a majority.

The contenders in Germany's election made their final appeals to voters Saturday, with opposition leader and front-runner Friedrich Merz vowing to revive the stagnant economy and defend Europe's interests in the face of a confrontational U.

The German election campaign draws to a close on Saturday with parties hoping to attract undecided voters in a flurry of final events, as conservative leader Friedrich Merz's CDU/CSU bloc remains far ahead in the polls.