Research
2025 Report: Destructive Malware in Open Source Packages
Destructive malware is rising across open source registries, using delays and kill switches to wipe code, break builds, and disrupt CI/CD.
By Kush Pandya - Dec 24, 2025
is-svg
Check if a string is SVG
Install
npm install is-svg
Usage
import isSvg from 'is-svg';
isSvg('<svg xmlns="http://www.w3.org/2000/svg"><path fill="#00CD9F"/></svg>');
//=> true
API
isSvg(string, options?)
options
Type: object
validate
Type: boolean
Default: true
Whether to validate the SVG as proper XML.
Turning this off can improve performance significantly.
Other packages similar to is-svg
image-type
The image-type package can identify the type of an image by examining its buffer. It supports various image formats, including SVG. Compared to is-svg, image-type offers broader functionality for multiple image formats but might be overkill if you only need to validate SVGs.
file-type
Similar to image-type, file-type goes beyond images and can determine the type of many different files, including images, videos, fonts, and more. It's more comprehensive than is-svg, which is focused solely on SVG validation.
FAQs
Check if a string is SVG
The npm package is-svg receives a total of 683,752 weekly downloads. As such, is-svg popularity was classified as popular.
We found that is-svg demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Package last updated on 08 Jul 2025
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Related posts
Security News
Engineering with AI Podcast: The Promise of AI-First Development
Socket CTO Ahmad Nassri shares practical AI coding techniques, tools, and team workflows, plus what still feels noisy and why shipping remains human-led.
By Sarah Gooding - Dec 24, 2025
Research
/Security News
Spearphishing Campaign Abuses npm Registry to Target U.S. and Allied Manufacturing and Healthcare Organizations
A five-month operation turned 27 npm packages into durable hosting for browser-run lures that mimic document-sharing portals and Microsoft sign-in, targeting 25 organizations across manufacturing, industrial automation, plastics, and healthcare for credential theft.
By Nicholas Anderson, Kirill Boychenko - Dec 23, 2025