HTML Link & Heading Extractor
About SVG ID Optimizer
The SVG ID De-duplicator & Collision Preventer renames and prefixes SVG element IDs (`id="gradient_1"` $\rightarrow$ `id="icon-cart-gradient_1"`), preventing accidental ID collisions and broken gradients when multiple inlined SVGs share identical IDs on the same page.
How to Use SVG ID Optimizer
Step 1
Paste SVG code containing IDs and gradients/clips/masks.
Step 2
Enter a unique prefix or select Short Sequential IDs.
Step 3
Review the updated SVG code with harmonized IDs and `url(#...)` pointers.
Step 4
Click "Copy Updated SVG".
Practical Use Cases for SVG ID Optimizer
Fixing Inlined SVG Gradient & Mask Clashing
Prevent pages with multiple inlined SVG icons from all referencing the first icon's `<linearGradient id="a">` by uniquely prefixing every ID and matching `url(#id)` reference.
Minifying Long Design Tool IDs
Shorten verbose Illustrator layer IDs (e.g. `id="Path_123_Group_456_Active"`) into compact, sequential IDs (`id="a"`, `id="b"`).
Input & Output Examples
Prefixing Inlined SVG IDs
Prefix: `btn-` | SVG: `<linearGradient id="grad1"><rect fill="url(#grad1)"/>`
`<linearGradient id="btn-grad1"><rect fill="url(#btn-grad1)"/>`
Key Features & Performance
- ✓Automatically updates all matching references: `url(#id)`, `href="#id"`, `xlink:href="#id"`, `clip-path="url(#id)"`, and `mask="url(#id)"`.
- ✓Strategies: Custom Prefix, Random Hash Prefix, or Short Sequential IDs (a, b, c).
- ✓Batch processing for multiple SVGs simultaneously.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy optimized SVG.
Key Terminology & Definitions
SVG ID Collision
A rendering bug where multiple inlined SVGs on an HTML page declare the same `id`, causing browsers to resolve all `url(#id)` references to the first SVG on the page.
Fragment Identifier (`url(#id)`)
The URI syntax used in SVG fill, stroke, mask, and clip-path attributes to point to definitions inside `<defs>`.