Definition
A single applied criterion or rule used to include or exclude items from a set of content, data, or search results. In creator tools and platforms, a filter is a user-controlled parameter — such as category, date range, platform, or keyword — that narrows displayed results to match specific needs. In content moderation, a filter is an automated or manual rule that flags, suppresses, or removes content matching certain patterns. In photography and video, a filter refers to a visual effect applied to footage or images to alter color, tone, or aesthetic.