Arc diagram generator

Arc diagram

Lay network nodes along a line and connect related pairs with arcs. Create a private, publication-ready arc diagram directly in your browser without transmitting sensitive rows off-device. Data is processed locally on your hardware with zero server uploads, enabling instant export to SVG, PNG, and Excel data.

Explain networksnetworkrelationshipsflow

Edit the data, then export.

Everything runs in your browser. Your data is not uploaded.

Data

Paste tab-separated data from Excel or edit the cells directly.

Paste or import table data

Paste a header row, or choose a local CSV/TSV file. Files are read in this browser and capped at 500 rows.

Choose CSV/TSV

Appearance

Chart title

Palette

Width Data labels Gridlines Axes LegendBackground

Preview

Sample preview of the example data. The live chart takes over as soon as you start working.

SVG, PNG, and Excel exports are generated locally in this browser. PowerPoint export is temporarily unavailable while its dependency path is reviewed for a high-severity image parser advisory.

Multi-Variable Correlation & Flow Mechanics

An arc diagram simplifies complex network data by aligning all nodes along a single linear axis and connecting related pairs with semicircular arcs. This layout is especially powerful for highlighting sequential order, clusters, and reciprocal connections without the visual clutter of 2D node entanglement. Like all Trendalyzer charts, your data is processed entirely locally on your device, ensuring complete privacy with no server uploads.

Coordinate & Matrix Data Structure

Format input columns for arc diagram with explicit headers and numerical measurements. Verify that rows represent discrete categories or observations without unformatted symbol artifacts.

Sample Observation Matrix

| Source | Target | Interactions |

Correlation Traps & Analytical Guidelines

Ensure sufficient visual distinction for arc diagram marks across standard and high-contrast viewports.
Align text labels horizontally whenever possible to improve cognitive readability for arc diagram elements.
Double-check scale boundaries and zero-anchors before exporting arc diagram presentation artwork.

Data shape: Source, target, and link value columns
Exports: SVG, PNG, and Excel data; PowerPoint export is temporarily unavailable pending dependency review.

How it works

You edit a table in this page. The renderer draws an SVG from those rows in your browser, then you can download SVG, PNG, or Excel data. The table is not uploaded to any external processing server.

Frequently asked questions

Why arrange nodes on a 1D line in an arc diagram?

A 1D axis preserves natural sequential order (such as chronology or book chapters) while avoiding 2D node occlusion.

Chord diagramShow complex inter-relationships and bidirectional flows between entities in a circular layout.Open Force-directed graphExplore connections among entities as a network of nodes and links.Open Sankey diagramShow how quantities flow between stages, categories, or systems.Open Cluster treeArrange a parent-child hierarchy in a compact dendrogram to emphasize related branches and depth.Open Parallel setsCompare how categorical groups flow between two dimensions with weighted ribbons.Open Tidy treeExplain parent-child structure with a clean node-link layout and readable labels.Open

Reviewed 16 August 2026.