SVG Sanitizer
Clean SVG markup by removing scripts, event handlers and unsafe external references directly in your browser. No upload is required.
How to use the SVG sanitizer
Paste SVG markup into the editor or choose an SVG file from your device. Select Sanitize SVG to parse the document and remove content that can execute code, trigger browser events or load unsafe external resources. Review the report, then copy or download the cleaned SVG.
What an SVG sanitizer checks
SVG is an XML-based graphics format, but it also supports features that can interact with a browser. A sanitizer can therefore remove elements such as <script>, event-handler attributes such as onload, dangerous URL schemes such as javascript:, and external references that are not needed for a self-contained graphic.
Why SVG files need special care
An SVG is not simply a bitmap image. Depending on its contents and where it is used, an SVG can contain links, CSS, references and other XML elements. Treating every SVG as harmless text can miss browser-relevant behavior. Sanitization is useful before an SVG is uploaded, embedded, emailed or passed to another system.
What this tool preserves
The sanitizer keeps common drawing elements such as paths, shapes, groups, gradients, masks, clipping paths, filters, text and basic SVG structure. It also preserves safe presentation attributes where possible. Content that falls outside the supported safe set can be removed so the output is easier to review.
Local processing and privacy
The SVG is parsed and sanitized in your browser. NeroTool does not intentionally upload the SVG source to a NeroTool processing server. The result is generated locally and can be copied or downloaded to your device.
Sanitization is not a guarantee of safety everywhere
Sanitization reduces common SVG risks, but the security of an SVG also depends on how the resulting file is stored, served and embedded. A strict content security policy, safe response headers and an appropriate image handling strategy are still important when SVG files come from untrusted users.
Frequently asked questions
What does the SVG Sanitizer remove?
It removes executable script elements, event-handler attributes, dangerous URL schemes and unsafe external references while keeping common SVG drawing elements and attributes.
Does the SVG file leave my browser?
The sanitizer parses and processes the SVG in your browser. It does not intentionally upload the SVG to a NeroTool processing server.
Will sanitizing an SVG change its appearance?
The sanitizer is designed to preserve common SVG artwork, but removing unsafe or unsupported content can change an SVG that depended on scripts, foreign HTML or external resources.
Is an SVG sanitizer the same as an SVG metadata remover?
No. Sanitization focuses on potentially executable or unsafe SVG content. Removing authoring metadata is a separate operation.