No. While many services offer free trials (e.g., a 7-day Crunchyroll trial or 30-day Netflix trial), downloading the permanent file for free without a subscription is piracy. You can, however, watch it free with ads on legitimate ad-supported platforms like Tubi or Pluto TV (check your regional library), though downloads are not permitted on those ad-tiers.
Apple’s store sells Your Name in 4K HDR. The download is DRM-protected, but it seamlessly integrates into your Apple ecosystem. It often includes bonus features like the RADWIMPS music video and interviews with Makoto Shinkai.