PDFSVG

SVG cleanup workflow

SVG cleanup checklist

Clean unknown SVG before you publish it, convert it to React, minify it, or encode it as a data URI. This checklist keeps the review practical.

A good SVG cleanup pass removes risky markup, checks that the image still previews correctly, and leaves the file ready for its next use. Clean first when the SVG came from a design export, icon marketplace, CMS, email, or pasted web snippet.

Quick SVG cleanup checklist

Check What to look for Why it matters
Scripts and events <script>, onclick, onload, other event attributes They can add behavior you do not want in a site or app.
Links and references javascript: links, external hrefs, linked images, remote fonts They can break rendering, leak requests, or send users elsewhere.
IDs and paint servers Gradients, masks, clip paths, filters, and url(#id) references Broken IDs can make gradients disappear or turn artwork black.
ViewBox and dimensions Missing viewBox, strange width or height, unwanted whitespace Bad dimensions make export, alignment, and React sizing harder.
Preview after cleanup Compare the cleaned SVG with the expected visual result Cleaning can change complex SVG that depends on unsupported markup.

Before you clean an SVG

  1. Keep a copy of the original SVG.
  2. Preview the SVG so you know what the cleaned version should look like.
  3. Check whether the file uses gradients, masks, filters, animation, or external assets.
  4. Decide where the SVG will go next: web page, React component, PNG export, PDF export, or data URI.

After you clean an SVG

  1. Preview the cleaned SVG in the browser.
  2. Check the viewBox, width, and height.
  3. Review any removed-item note from the cleaner.
  4. Test the next step before shipping: React conversion, minification, PNG export, PDF export, or data URI encoding.
  5. Keep readable SVG while you are still editing. Minify only when the file is ready to ship.

Checklist by workflow

Before publishing SVG on a website

Remove scripts, event handlers, unsafe links, external JavaScript, embedded HTML, and tags your site does not need. If users can upload SVG to your app, add server-side validation too.

Before converting SVG to React

Clean noisy export markup, then review JSX attribute names, duplicate IDs, currentColor, title, desc, and aria labels.

Before minifying SVG

Make sure the cleaned SVG previews correctly. Minification is easier to trust after the safety and compatibility check is done.

Before encoding SVG as a data URI

Use small, cleaned SVG. Avoid large illustrations and files that people will need to edit or cache separately.

Open SVG cleaner Safe SVG sanitizer Clean SVG for React

Common questions

What should I check before cleaning SVG?

Keep the original file, preview the SVG, check for gradients or masks, and decide whether the cleaned SVG will be published, converted to React, minified, exported, or encoded as a data URI.

What should an SVG cleanup remove?

A cleanup pass should remove script tags, event handlers, unsafe links, unsupported tags, risky external references, and markup that does not belong in the intended use.

Should I clean SVG before minifying it?

Yes for unknown SVG or design exports. Clean first, preview the result, then minify when the SVG already looks correct and you need a smaller file.

Should I clean SVG before converting it to React?

Yes. Cleaning removes risky or noisy markup before JSX conversion, then you can review IDs, labels, props, and accessibility decisions in the React component.