<a>

The <a> SVG element creates a hyperlink to other web pages, files, locations within the same page, email addresses, or any other URL.

In SVG, the <a> element is a container, meaning, you can create a link around text, like in HTML, but you can also create a link around any shape.

<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <!-- A link around a shape -->
  <a href="https://developer.mozilla.org/docs/Web/SVG/Element/circle">
    <circle cx="50" cy="40" r="35"/>
  </a>

  <!-- A link around a text -->
  <a href="https://developer.mozilla.org/docs/Web/SVG/Element/circle">
    <text x="50" y="90" text-anchor="middle">
      &lt;circle&gt;
    </text>
  </a>
</svg>

/* As SVG does not provide a default visual style for links,
   it's considered best practice to add some */

@namespace svgns url(http://www.w3.org/2000/svg);

svgns|a {
  cursor: pointer;
}

svgns|a text {
  fill: blue; /* Even for text, SVG use fill over color */
  text-decoration: underline;
}

svgns|a:hover, svgns|a:active {
  outline: dotted 1px blue;
}

download

This attribute instructs browsers to download a URL instead of navigating to it, so the user will be prompted to save it as a local file.
Value type: <string> ; Default value: none; Animatable: no

href (en-US)

This attribute contains the URL or URL fragment that the hyperlink points to.
Value type: <URL> ; Default value: none; Animatable: yes

hreflang

This attribute contains the URL or URL fragment that the hyperlink points to.
Value type: <string> ; Default value: none; Animatable: yes

ping

This attribute contains a space-separated list of URLs to which, when the hyperlink is followed, POST requests with the body PING will be sent by the browser (in the background). Typically used for tracking.  For a more widely-supported feature addressing the same use cases, see Navigator.sendBeacon().
Value type: <list-of-URLs> ; Default value: none; Animatable: no

referrerpolicy

This attribute indicates which referrer to send when fetching the URL.
Value type: no-referrer|no-referrer-when-downgrade|same-origin|origin|strict-origin|origin-when-cross-origin|strict-origin-when-cross-origin|unsafe-url ; Default value: none; Animatable: no

rel

This attribute specifies the relationship of the target object to the link object.
Value type: <list-of-Link-Types> ; Default value: none; Animatable: yes

target (en-US)

This attribute specifies where to display the linked URL.
Value type: _self|_parent|_top|_blank|<name> ; Default value: _self; Animatable: yes

type

This attribute specifies the media type in the form of a MIME type for the linked URL.
Value type: <string> ; Default value: none; Animatable: yes

xlink:href (en-US) Deprecated SVG 2

This attribute contains the URL or URL fragment that the hyperlink points to.
Value type: <URL> ; Default value: none; Animatable: yes

Core Attributes

Most notably: id (en-US), lang (en-US), tabindex (en-US)

Styling Attributes

class (en-US), style (en-US)

Conditional Processing Attributes

Most notably: requiredExtensions, systemLanguage (en-US)

Event Attributes

Global event attributes, Document element event attributes, Graphical event attributes

Presentation Attributes

Most notably: clip-path (en-US), clip-rule (en-US), color (en-US), color-interpolation (en-US), color-rendering (en-US), cursor (en-US), display (en-US), fill (en-US), fill-opacity (en-US), fill-rule (en-US), filter (en-US), mask (en-US), opacity (en-US), pointer-events (en-US), shape-rendering (en-US), stroke (en-US), stroke-dasharray (en-US), stroke-dashoffset (en-US), stroke-linecap (en-US), stroke-linejoin (en-US), stroke-miterlimit (en-US), stroke-opacity (en-US), stroke-width (en-US), transform (en-US), vector-effect (en-US), visibility (en-US)

XLink Attributes

Most notably: xlink:title (en-US)

ARIA Attributes

aria-activedescendant, aria-atomic, aria-autocomplete, aria-busy, aria-checked, aria-colcount, aria-colindex, aria-colspan, aria-controls, aria-current, aria-describedby, aria-details, aria-disabled, aria-dropeffect, aria-errormessage, aria-expanded, aria-flowto, aria-grabbed, aria-haspopup, aria-hidden, aria-invalid, aria-keyshortcuts, aria-label, aria-labelledby, aria-level, aria-live, aria-modal, aria-multiline, aria-multiselectable, aria-orientation, aria-owns, aria-placeholder, aria-posinset, aria-pressed, aria-readonly, aria-relevant, aria-required, aria-roledescription, aria-rowcount, aria-rowindex, aria-rowspan, aria-selected, aria-setsize, aria-sort, aria-valuemax, aria-valuemin, aria-valuenow, aria-valuetext, role