CleanorTools
SVG

Inline SVG Cleaner

Details

How to use Inline SVG Cleaner

What the tool does, how to run it, and what to expect from the result.

How to clean an SVG for inline use

Inline SVG lands in your HTML, your component tree, and your diffs, so it has to be small, safe, and CSS-sizeable. This page sanitizes the markup with an SVG profile that forbids <script> and <foreignObject>, runs it through the optimizer, then strips the root width and height so CSS controls the size.

The viewBox survives, because without it the icon has no intrinsic geometry left and cannot scale. What you get back is a compact snippet you can paste into a template and size from a stylesheet.

  • Paste the SVG into the SVG markup box and press Use pasted SVG, or drop a .svg file on the dropzone.
  • Press Clean markup.
  • Read the Cleaned markup panel and confirm the viewBox is present and width and height are gone.
  • Press Copy SVG and paste it into your template or component.
  • Give the element an explicit size in CSS, such as width: 1.25rem; height: 1.25rem, so it does not expand to fill its container.

How to clean an SVG for inline use

To clean an SVG, paste the markup into the inline SVG cleaner or upload a file, run the cleanup, and copy the inline-ready output. The processing happens in your browser, so your markup never leaves your device, which matters for proprietary icons and assets.

The cleaner removes editor metadata, comments, and other junk that design tools add on export, leaving leaner markup that is easier to read and maintain. It can also remove fixed width and height so the SVG scales naturally when dropped into your components.

Why inline SVG needs its own cleanup pass

Inline SVG is not only about visuals; it lives directly in your codebase, so readability, maintainability, and safety matter. Exported SVGs are often bloated with editor attributes and metadata that add noise to diffs and pull requests.

A dedicated inline cleanup pass keeps that developer workflow separate from general image conversion. The result is markup you can paste into a component, style with CSS, and animate, without dragging along unnecessary cruft.

Is the SVG cleaner free and private?

Yes. The inline SVG cleaner is free with no sign-up, no watermark, and no usage limits, so you can clean as many SVGs as you want.

It is private because all cleanup runs locally in your browser. Your SVG code is never uploaded to a server, keeping proprietary or unreleased assets on your device.

Tips

Getting a better result out of Inline SVG Cleaner

Specific settings and thresholds, not general advice.

  • The cleaner runs the full SVG optimization first, then removes exactly two things: the width and height attributes on the root. The viewBox is kept, which is what lets the inline SVG scale to whatever box you put it in.
  • Once width and height are gone, an inline SVG with a viewBox expands to fill its container's width. If you do not give it a size in CSS, you get a full-width icon and a layout shift on load. Set width and height, or a fixed em size, in the component's CSS.
  • <script> and <foreignObject> are stripped by the sanitizer before optimization. That is the point of running untrusted or client-supplied SVG through this page: those are the two elements that turn an inline SVG into an XSS vector.
  • The output is not JSX. Attributes such as class, stroke-width, and clip-path stay in kebab-case, so pasting straight into a .jsx file gives you React warnings. Convert with an SVG-to-JSX step, or load the file as a component instead of inlining the raw string.
  • id cleanup runs as part of the optimization, so ids can be shortened. If you inline several icons on the same page, identical shortened ids across files can collide in the DOM and a gradient in one icon can start rendering with another icon's stops. Prefix or namespace ids if you inline more than a couple of gradient-bearing SVGs.
Limits

What Inline SVG Cleaner does not do

The honest boundary, so you do not lose time finding it yourself.

  • No JSX or React conversion. Attribute names are left as standard SVG.
  • It does not replace hard-coded fills with currentColor, so theming still needs a manual edit or the SVG Color Replacer.
  • It adds no accessibility markup. No <title>, no role, no aria-label.
  • One SVG per run. There is no sprite builder and no batch mode.
At a glance

Who Inline SVG Cleaner is for

A quick way to understand who this helps, what it solves, and where it connects next.

Best fit

Frontend teams embedding SVG directly into HTML, JSX, templates, and design-system components.

Ideal for

Preparing one SVG for inline use without carrying editor metadata and unnecessary geometry noise.

FAQ

Common questions

Short answers for the questions people usually have before trying a utility like this.

Does it remove width and height for inline use?

Yes. The cleaned output can remove fixed width and height so the SVG scales naturally when used inline in your markup.

Can I upload a file instead of pasting?

Yes. File upload is supported, though the workflow is designed to be paste-friendly for quick cleanups.

Does it upload my SVG to a server?

No. The cleanup runs entirely in your browser, so your SVG markup stays on your device.

Is the inline SVG cleaner free?

Yes. It is completely free with no sign-up, no watermark, and no limit on how many SVGs you clean.

Does it work on mobile?

Yes. The cleaner works in any modern mobile or desktop browser because all processing happens locally on your device.

Why does it remove width and height?

Because a fixed width and height on an inline SVG fight with CSS sizing. With those attributes gone and the viewBox intact, the icon scales to whatever size you give the element, which is how an icon in a design system should behave. The tradeoff is that you must give it a size in CSS or it fills the container.

Is this doing anything for security?

Yes. The markup is passed through DOMPurify with an SVG profile, and <script> and <foreignObject> are explicitly forbidden. Those are the elements that let a hostile SVG execute JavaScript once it is inlined into your DOM. If you ever inline SVG that a user uploaded, sanitizing it is not optional.

Can I paste the output straight into a React component?

Not without a conversion step. The output is valid SVG, which means class rather than className and stroke-width rather than strokeWidth. React will warn on every one. Run it through an SVG-to-JSX transform, or import the .svg file as a component with your bundler's SVG loader.

Should I inline SVG at all, or use an <img> tag?

Inline it when you need CSS to reach inside the icon: currentColor, hover states, animating a path, or per-part theming. Use an <img> or a background-image when the graphic is decorative and static, because that version gets cached as a separate file and does not bloat your HTML on every request.

Does the markup leave my browser?

No. Sanitization, optimization, and the width and height removal all happen in the tab. Nothing is uploaded, which is exactly why this is a safe place to inspect an SVG whose origin you do not trust.

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