How to Create SVG Progress Bars — Animated, Circular & Accessible
SVG progress bars animate smoothly with CSS transitions and scale to any size — learn horizontal and circular progress patterns.
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Linear SVG Progress Bar
A linear progress bar uses two `<rect>` elements: a background track and a foreground fill. Animate the foreground rect's `width` attribute or `scaleX` transform with a CSS transition.
- Background rect: full width, low opacity fill
- Foreground rect: width set to percentage of total
- Add role='progressbar' aria-valuenow attributes for accessibility
Circular SVG Progress Ring
A progress ring uses a `<circle>` with `stroke-dasharray` equal to the circumference. Set `stroke-dashoffset` to `circumference * (1 - percentage)` — CSS transition animates the fill smoothly.
- circumference = 2 * Math.PI * radius
- dashoffset = circumference * (1 - progress)
- Transition stroke-dashoffset for smooth animation
Frequently Asked Questions
How do I make an SVG progress bar accessible?
Add role='progressbar', aria-valuenow, aria-valuemin='0', and aria-valuemax='100' to the SVG or a wrapping element.
Can I animate SVG progress bars without JavaScript?
Yes for predefined durations — use CSS animation with a keyframe from dashoffset: circumference to 0. For dynamic values, JavaScript is needed to update the offset.
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