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By default Next.js will redirect urls with trailing slashes to their counterpart without a trailing slash. For example /about/ will redirect to /about. You can configure this behavior to act the opposite way, where urls without trailing slashes are redirected to their counterparts with trailing slashes.

Open next.config.js and add the trailingSlash config:

module.exports = {
  trailingSlash: true,

With this option set, urls like /about will redirect to /about/.

When used with output: "export" configuration, the /about page will output /about/index.html (instead of the default /about.html).

Version History

v9.5.0trailingSlash added.