SVG is the only image format that genuinely belongs in HTML — it is text-based, resolution-independent, styleable with CSS, and animatable with JavaScript. Yet many developers still reach for PNG or JPEG when SVG would serve them far better.
Why SVG Outperforms Raster Formats for UI
One SVG file looks perfect on a 1x phone screen and a 5K monitor. A PNG needs separate @2x and @3x versions.
SVG elements respond to CSS — change fill colour, stroke width, or opacity without regenerating the file.
A simple SVG icon is often 200–800 bytes. The equivalent PNG is 3–10KB including the alpha channel.
Inline SVG text and title elements are readable by screen readers and search engines.
Inline SVG vs External SVG File
Inline SVG (pasted directly into HTML) enables CSS and JavaScript access to internal elements — essential for animated SVGs or SVGs that need to respond to user interaction. External SVG (referenced via img src or CSS background-image) is simpler and cacheable but locks you out of per-element styling.
SVG Blob Shapes in Practice
Organic blob shapes use the SVG path element with cubic Bezier curves to create smooth, non-geometric closed shapes. They work as background decorations behind hero images, as clip-paths masking photographs into organic shapes, and as icon containers that break the rigid circle-or-square dichotomy.
Generate unique blob shapes instantly with the SVG Blob Generator — each click produces a new organic shape with your chosen colours. Download as SVG and paste directly into your HTML.
Optimising SVG for Production
Raw SVG files from design tools contain extensive metadata, comments, and unused definitions. Run them through SVGO (available as a Node package or online tool) before shipping. Typical reduction is 40–70% without any visual change.