Macron, 39, told the Journal de Dimanche newspaper one of his first measures would be to pass a law setting new ethical standards for parliament, followed by related legislation that will cut the number of MPs by a third.
He also foresees a visit to Berlin and a tour of European capitals to drum up support for his plan to deepen economic integration in the eurozone, create a European border force and put in place greater protections for European industry.
Elsewhere today, his main rivals far-right leader Marine Le Pen and scandal-hit rightwinger Francois Fillon were seeking to persuade the roughly 30 percent of voters who are yet to make their minds up.
Analysts say the widely-watched election remains extremely unpredictable after a rollercoaster campaign.
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Fillon will hold what could be one of his largest rallies so far in southern Paris later in the afternoon, with the defiant ex-prime minister convinced he can still win despite a series of damaging revelations about his finances.
Le Pen and her closest allies will hit the airwaves in a series of interviews intended to sway voters tempted by her vision of a nationalist France, unburdened by the European Union and the euro currency.
The latest poll published late on Saturday confirmed shifting momentum seen earlier this week following a second and final televised debate between the 11 candidates vying to be France's next leader.
Le Pen and Macron - dubbed the "fragile favourite" by the Journal de Dimanche - are neck-and neck but both have lost ground slightly and would win 23 per cent if the vote were held today.
But behind them, Communist-backed firebrand Jean-Luc Melenchon continues to surge after strong performances during the debates when he repeatedly tackled Le Pen over her hardline views on immigration and Islam.
The often witty leftwinger, an admirer of late Venezuelan president Hugo Chavez and staunch critic of the European Union, is seen winning 19 per cent of votes, up four points over a week, which puts him at the same level of support as Fillon.