Free Power BI Custom Visuals in 2026: Every Real Option

These are free without a catch, as of mid-2026:

- **Deneb** (certified) — renders any Vega/Vega-Lite spec. The most capable free visual on the marketplace; the price is learning the spec language. - **Icon Map** — WKT, GeoJSON, tile layers, icons and lines on maps. The best free mapping visual by a wide margin. - **Sankey Chart by MAQ Software** (certified) — the standard free flow diagram. - **Gantt Chart by MAQ Software** (certified) — the standard free project timeline. - **Microsoft's own open-source visuals** — Chiclet Slicer, Text Filter, Bullet Chart, Word Cloud and others. Basic, but maintained under Microsoft's GitHub org and safe defaults for common needs.

A practical filter when you evaluate anything else: check the AppSource listing for an "additional purchase may be required" tag, check the vendor's site for per-user pricing, and load the visual with production-scale data before you commit a report to it.

GitHub hosts hundreds of open-source Power BI visuals — including the source for most certified free ones. If a visual is open source, you are not dependent on AppSource at all: clone the repository, run the pbiviz build tooling, and import the resulting .pbiviz file directly.

This route matters for two reasons. First, tenant policy: some organizations allow only visuals that IT has reviewed — source access makes that review possible. Second, small fixes: a palette that fights your theme or a label that truncates is often a ten-line change when you have the code, and an impossible support ticket when you do not.

The build tooling (powerbi-visuals-tools) is a standard Node.js toolchain: install, run the package command, and the compiled visual lands in a dist folder ready to import.

Three patterns to catch before they catch you:

1. **The row limit.** The visual is free for the first N rows or categories, then truncates or nags. Your proof of concept with 50 rows works; your production dataset with 20,000 does not. Always test at production scale. 2. **The watermark.** The visual renders a vendor logo or 'trial' banner over your report until a license is purchased. Fine for evaluation, mortifying in the Monday steering-committee deck. 3. **The feature gate.** Core rendering is free; the formatting you actually need (conditional colors, totals, export) is behind the paid tier. You discover this on day three of report development, when switching visuals costs a rebuild.

None of this is dishonest — vendors have to eat — but AppSource surfaces it inconsistently. The tell is the 'Additional purchase may be required' tag on the listing plus a 'pricing' page on the vendor site.

Any .pbiviz file — open-source build, internally developed, or AI-generated — imports directly into Power BI Desktop: Visualizations pane, three-dot menu, "Import a visual from a file". The visual travels inside the .pbix, so report consumers in the Service see it without installing anything.

For tenant-wide reuse, a Power BI admin can upload the same file as an **organizational visual** (Admin portal, Organizational visuals). It then appears in every report author's visual pane, centrally managed and centrally updatable — the standard distribution path for visuals that never need to be public on AppSource.

Two caveats: imported visuals are uncertified by definition (certification is an AppSource process), so tenants that block uncertified visuals need the organizational-visual route with an explicit admin allow; and Power BI Report Server supports custom visuals with additional restrictions — test there first if that is your deployment target.

The newest free route: AI generation with a free tier. Describe the visual in plain English — chart type, palette, labels, interactions — and get back a compiled .pbiviz plus its TypeScript source. VizForge's free tier works this way: free generations each month, a small "Made with VizForge" badge on free-tier visuals, and the source code is yours either way.

The honest comparison against the other two free routes: marketplace visuals are faster to try but you take whatever formatting the vendor shipped; open-source visuals are fully controllable but assume you can work a TypeScript build chain; generation sits between — custom to your spec without writing the code yourself, at the cost of the visual being uncertified (import it directly, as described above).

For the chart types AppSource covers well — a basic bar chart, a standard slicer — use the free marketplace option. Generation earns its place on the long tail: the exact variance waterfall your CFO sketched, an SPC chart with your control-limit rules, a slicer that matches your design system.