Can I upload an SVG file?

Yes. Drop in or choose a .svg file and its markup is loaded into the editor and rendered immediately, or paste the code directly.

What details does it show?

The rendered preview plus the SVG width, height, and viewBox, and a count of the drawable elements inside the graphic.

Does it run scripts inside the SVG?

The preview is rendered for display only; you should still treat SVGs from untrusted sources with caution as they can contain scripts.

Why does my SVG show as invalid?

The tool needs both an opening tag and a closing ; a fragment, an image of an SVG, or truncated markup will be flagged as invalid.

Can it optimise or minify the SVG?

This viewer focuses on rendering and inspection; for size reduction, run the markup through a dedicated SVG optimiser after confirming it looks correct here.

Is uploading my SVG safe?

Yes. The file is read in the browser with FileReader and rendered inline, so it is never sent to a server, though you should still treat untrusted SVGs with normal caution.

SVG Viewer & Inspector

Paste SVG markup or drop in an .svg file to render it live, read its width, height, and viewBox, and check the element count — a quick, private SVG inspector that runs entirely in your browser.

Updated June 2026

Files never leave your browser

Upload SVGor paste the markup below

SVG Markup

How to use SVG Viewer & Inspector

The SVG Viewer renders SVG markup live and reports its key attributes so you can inspect vector graphics quickly. Paste SVG code or upload an .svg file and see it rendered immediately alongside its width, height, viewBox, and a count of drawable elements. The file is read locally with the browser FileReader API and rendered inline, so your graphic never leaves your device.

Upload an .svg file or paste the SVG markup into the box.
View the rendered graphic in the preview panel.
Read the width, height, viewBox, and element count details.
Copy the markup if you want to reuse it elsewhere.

Your data never leaves your device — 100% private processing.

Understanding the viewBox

The viewBox attribute defines the coordinate system of an SVG as four numbers: min-x, min-y, width, and height. It controls how the vector content maps into whatever pixel size the SVG is displayed at, which is why an SVG can scale crisply to any size. When an icon appears cropped, off-centre, or zoomed, the viewBox is usually the culprit, so seeing it explicitly helps you diagnose and fix layout problems fast.

Width, height, and element count

The width and height attributes set the intrinsic display size, though CSS can override them. The element count totals the drawable shapes — paths, rectangles, circles, groups, text, and more — giving you a quick sense of the graphic's complexity. A surprisingly high count can hint at an unoptimised export with redundant nodes that you may want to simplify before shipping.

Worked examples

Read the viewBox

Inputs: <svg viewBox="0 0 24 24">…

Result: viewBox shown as 0 0 24 24

Count elements

Inputs: <svg><path/><circle/></svg>

Result: Element count reported as 2

Upload a file

Inputs: Choose icon.svg

Result: Graphic rendered with its details listed

Glossary

SVG: Scalable Vector Graphics: an XML-based format for resolution-independent images defined by shapes and paths.
viewBox: An attribute defining the SVG coordinate system and how its content scales into the display area.
Path: An SVG element that draws an arbitrary shape from a series of line and curve commands.
FileReader: A browser API that reads local file contents without uploading them to a server.

Frequently Asked Questions

Free · No spam

Get weekly tool tips & updates

New tools, power-user tips, and productivity hacks — delivered free every Friday.

No spam, ever. Unsubscribe with one click.

Why use SVG Viewer & Inspector?

Render SVG markup or an uploaded .svg file instantly
Read the width, height, and viewBox at a glance
See how many drawable shape elements the graphic contains
Copy the markup back out after inspecting it
Files are read locally — your graphic is never uploaded

Common use cases

Check how an exported icon looks before adding it to a project
Inspect the viewBox of an SVG to fix scaling or cropping issues
Verify markup produced by a design tool or AI before shipping it
Quickly preview an icon pasted from a component library
Confirm an SVG has no unexpected extra elements

Related Developer Tools

SVG ↔ PNG Converter

Convert SVG to PNG at any resolution, or trace a PNG into an embeddable SVG. Free, private SVG/PNG converter that runs entirely in your browser.

HTML Viewer & Previewer

Paste HTML and preview the rendered result instantly in a safe sandbox. Toggle between rendered output and formatted source — free, private, and in your browser.

CSS Minifier & Beautifier

Minify and beautify CSS code online. Reduce CSS file size by removing whitespace and comments. Free online CSS minifier with instant results.

JSON Formatter & Validator

Format, validate, and minify JSON instantly. Includes syntax highlighting, error detection, and a collapsible tree view — free, private, in-browser.

Regex Tester

Test and debug regular expressions online. See live matches, capture groups, and replace output. Free, private, instant.

Base64 Encoder & Decoder

Encode text or files to Base64, or decode Base64 strings back to text. Fast, free, and runs entirely in your browser.

Explore all Developer Tools.