Yes. Using a VPN in Singapore is legal, and there is no rule against changing which country a site thinks you are in.

Singapore does block things, but the blocklist is narrower and more specific than most people expect:
  • unlicensed remote gambling, under the Gambling Control Act 2022, enforced by the Gambling Regulatory Authority. The prediction market Polymarket was blocked on those grounds.
  • a symbolic list of around a hundred pornographic sites, blocked by IMDA as a statement of standards rather than an attempt at completeness
  • specific pages and accounts under POFMA, the 2019 law on online falsehoods, which allows access to named content to be blocked
  • piracy sites, blocked through court injunctions obtained by rights holders
Everything else loads. There is no national firewall here, and news, search and social media work normally.

One honest note, because it is the most common reason people go looking for a Singapore VPN and draw the wrong conclusion. In Singapore it is an offence not only to run an unlicensed remote gambling service but to bet with one. A VPN changes what your internet provider can see. It does not change what is legal, and it does not put you outside Singapore law while you are sitting in Singapore.

What a VPN does here is the ordinary thing, and the useful one: it encrypts your connection on shared Wi-Fi, and it lets you choose which country's version of a site you are looking at.