The legislation was designed to revise France's Labour Code with the aim of making the country's labor market more flexible, which the government claims will reduce unemployment.
Haunting image from the protests.
War-like images next to a Parisian cafe
Police violence, this time against an aggressive crowd, is on the rise these days.
Among the changes set out in the initial draft legislation were measures making it easier for companies to lay off workers.
Overtime payments for hours worked beyond France's statutory 35-hour workweek were also reduced.
The movement stated its aims as "overthrowing the El Khomri bill and the world it represents".
Nuit Debout protest at Place de la Republique
Most protests in Paris take place at Place de la Republique.