The Briqlab Calendar Heat is a free Power BI custom visual for analysts who work with daily time-series data and need to surface patterns that standard line charts bury. By mapping every day of the year onto a calendar grid and colour-coding each cell by metric intensity, it gives stakeholders an immediate, full-year view of when activity peaks, when it drops, and whether the same pattern repeats across months or years.
• Full-year calendar grid — every day rendered as a colour-coded cell
• Automatic colour scale — gradient adjusts dynamically to your data range
• Configurable date range — show a single month, a quarter, or multiple years
• Month and year navigation with smooth animated transitions between periods
• Interactive tooltips showing exact date, day of week, and metric value on hover
• Click-to-filter cross-highlighting with other visuals on the report page
• Compact year-overview and expanded month-detail display modes
• Dark and light theme compatible with no extra setup
• Sales performance — daily revenue or order volume across a full year at a glance
• Website analytics — daily sessions, conversions, or bounce rate by calendar day
• IT operations — support ticket volume by day to identify recurring pressure points
• HR and workforce — daily absence rates and seasonal staffing patterns
• Retail and e-commerce — footfall or transaction density across peak trading periods