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The Blazor Timeline is a tool to display a series of data in chronological order, providing a visually compelling and user-friendly experience. This showcases user activities, tracking progress, narrating historical timelines, and more. It includes several built-in features, such as orientation, opposite content, item alignment, reverse timeline, and template customization.

Blazor Timeline component


The Blazor Timeline component has two orientation modes:

  • Horizontal: Displays items side-by-side.
  • Vertical: Default orientation that displays items one below the other.

Blazor Timeline orientation

Blazor Timeline opposite content

Opposite content

Positioned opposite to the item content, the opposite content provides additional information to each Timeline item.

Items alignment

The Blazor Timeline component supports aligning the items’ content and opposite content as follows:

  • Before: Align the item content to the left (or top for horizontal orientation) and the opposite content to the right (or bottom).
  • After: The default alignment aligns the item content to the right (or bottom for horizontal orientation) and the opposite content to the left (or top).
  • Alternate: Align the content of the first item to the right and the opposite content to the left, and vice versa for subsequent items.
  • AlternateReverse: Align the content of the first item to the left and the opposite content to the right, and vice versa for subsequent items.

Blazor Timeline items alignment

Blazor Timeline dot item

Dot item

Allows you to set icons, background colors, or images to personalize the appearance of dots associated with each timeline item.

Reverse timeline

Display timeline items in reverse order, considering the alignment of items, offering flexibility, and enhancing the user experience.

Blazor Timeline reverse timeline

Blazor Timeline templates


The Blazor Timeline component supports templates to customize the default appearance, including styling the dot items, templated content, and more.


Customize timeline items’ dot sizing, dot outer spacing, connector styling, and more, enabling it to fit the application’s needs.

Blazor Timeline dot size

Dot sizing

Customizing the size of the dot items enhances the Timeline component’s appearance.

Blazor Timeline dot outer spacing

Dot outer spacing

Adjust the space between dot items and connectors in the Timeline component.

Blazor Timeline connector styling

Connector styling

Customize the size, color, and dashed styling of the connector for each item.

Blazor Timeline border dot outline

Dot styling

Customizing the shape, outline color, and spacing of the dot items enhances their appearance and makes them stand out.

Built-in themes

The Blazor Timeline supports these built-in themes: Tailwind CSS, Bootstrap 5, Bootstrap 4, Bootstrap, Material, Fabric, Fluent, and high contrast. Users can customize one of these built-in themes or create new themes to achieve their desired look and feel by simply overriding SASS variables or using our Theme Studio application.


  • Fully supports WAI-ARIA accessibility practices to work with screen readers and assistive devices.
  • Based on WCAG 2.0 standards, UI visual elements such as foreground color, background color, line spacing, text, and images are designed.
  • Supports right-to-left (RTL) text direction for users working with RTL languages like Hebrew, Arabic, or Persian.

Developer-friendly APIs

The Blazor Timeline component offers APIs for customizing its appearance and behavior, as well as templates for personalizing the look and feel. With these APIs, developers can create a unique and highly personalized Timeline that fits seamlessly into their applications.

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