DaVinci Resolve

DaVinci Resolve combines editing, colour grading, visual effects and audio post in a single application, with a free version that is genuinely capable rather than a demo.

Its colour grading tools originated in professional post-production and remain the strongest in any editor, which is why it is used for grading even on projects edited elsewhere.

The free version covers most work; the paid Studio version adds specific features like certain noise reduction and higher-resolution export options, as a one-time purchase rather than a subscription.