U
UITLY
Online SVG Editor & Optimizer

Free SVG Editor | Edit, Optimize & Convert SVG to JSX Online

Upload or paste any SVG file, edit fill colors, stroke, dimensions, and viewBox, then optimize and minify stripping editor bloat up to 70% smaller. Export clean SVG or convert directly to a React JSX component. No signup, 100% free.

Edit SVG Visually

Change fill, stroke, dimensions, and viewBox with live preview on light and dark backgrounds

Optimize & Minify

Strip metadata, comments, and Inkscape attributes. Minify to a single line. See before vs after size instantly

Convert to JSX

Export a React-ready JSX component with all hyphenated attributes converted to camelCase automatically

Edit, Optimize, and Export Your SVG

Upload an SVG file or paste raw code. Use the Edit tab to change colors and dimensions, the Optimize tab to strip bloat and compare sizes, and the Source tab to edit code directly. Copy the clean SVG or JSX output instantly.

SVG Editor & Optimizer

Live Preview

Created with SVG Editor

Colors

2px

Dimensions

Format: min-x min-y width height

SVG Information

Original size337 B
Optimized size236 B
Size saving30%
Dimensions100 × 100
ViewBox0 0 100 100

Quick Tips

• Upload any .svg file or paste code in the Edit tab

• Fill and stroke apply to the root <svg> element

• Use Optimize tab to strip editor cruft before shipping

• JSX output wraps the SVG in a reusable React component

• ViewBox controls the coordinate system — width/height control rendered size

Optimized SVG

<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100" fill="#3b82f6"><polygon fill="#3b82f6" stroke="#1d4ed8" stroke-width="2" points="50,10 61,35 90,35 68,57 79,82 50,65 21,82 32,57 10,35 39,35"/></svg>

What This SVG Editor Does

Edit & Preview

  • Upload .svg file or paste raw SVG code
  • Change fill color, stroke color, stroke width
  • Resize width, height, and edit viewBox
  • Dark/light preview with checkerboard bg

Optimize & Minify

  • Remove metadata, title, desc elements
  • Strip HTML comments from source
  • Remove Inkscape and Sodipodi attributes
  • Minify with before vs after size comparison

Export Options

  • Copy optimized SVG to clipboard
  • Download as .svg file
  • Convert to React JSX component
  • All camelCase conversion automatic

No account required — 100% free

The Complete Guide to SVG Editing and Optimization for the Web

SVG files exported from Figma, Illustrator, or Inkscape carry significant baggage: editor metadata, proprietary namespaces, nested group IDs, and redundant attributes that serve no purpose in a browser. A 12 KB icon from Illustrator often shrinks to 2 KB after proper optimization without any visible change in rendering. This tool handles that optimization in your browser, alongside direct color editing, dimension control, and one-click JSX conversion for React projects.

What Is SVG and Why It Matters for Modern Web Development

SVG (Scalable Vector Graphics) is an XML-based image format that describes graphics using mathematical shapes paths, circles, polygons, and curves rather than pixel grids. This fundamental difference from raster formats (PNG, JPEG, WEBP) gives SVG three properties that make it indispensable for UI development:

Resolution independence

SVG renders at perfect sharpness on any display standard screens, Retina displays, 4K monitors, or printed at 300 DPI. A single SVG icon replaces a complete @1x/@2x/@3x PNG asset set.

Tiny file sizes for simple graphics

An icon drawn with 3–4 path elements is often under 500 bytes as SVG far smaller than any equivalent PNG. For icons, logos, and UI illustrations, SVG consistently wins on file size.

CSS and JavaScript controllability

Inline SVG elements respond to CSS (color, opacity, transform, animation) and JavaScript exactly like HTML elements. You can animate paths, change fill colors on hover, and respond to click events none of which is possible with img-embedded SVGs.

Benefits of Editing and Using SVG Inline

The way you embed SVG in a webpage determines what you can do with it. Three main approaches exist each with distinct trade-offs.

  • img<img src='icon.svg'>: Simplest to use. The SVG loads as a separate HTTP request and renders as a static image. You cannot style it with CSS or manipulate it with JavaScript. Fill and stroke colors are fixed at the values in the file.
  • bgCSS background-image: url('icon.svg'): Useful for decorative icons in CSS. Same limitations as the img tag no CSS styling of SVG internals, no JavaScript access, no color inheritance from the parent element.
  • inlineInline SVG (pasted directly into HTML): The SVG element becomes part of the DOM. You can target any path or shape with CSS, change fill on hover, animate with CSS keyframes, and trigger JavaScript events. This approach enables icon systems where a single color variable controls every icon in the UI. This editor outputs clean inline SVG ready to paste.

How SVG Optimization Improves Web Performance

SVG files from design tools contain large amounts of data that browsers ignore completely but still must parse and transmit. Each unnecessary byte increases page weight, parse time, and time to interactive. Here's what this editor removes and why each matters:

Editor metadata

Inkscape, Illustrator, and Figma embed application-specific data in <metadata>, <title>, and <desc> elements, plus namespaces like xmlns:inkscape, xmlns:sodipodi, and xmlns:dc. Browsers render the SVG identically without these they exist purely for round-trip editing fidelity in the originating application.

HTML comments

Design tools and developers sometimes leave <!--comments--> in SVG files. Comments are invisible in rendering but fully present in the transmitted file. On icon-heavy pages with dozens of inline SVGs, removing comments across all files eliminates meaningful kilobytes.

Redundant IDs and data attributes

Inkscape generates id attributes for every element (path4532, g8921) and data-name attributes from layer names. Unless your JavaScript references these IDs, they waste bytes and clutter the DOM. Removing them reduces file size and keeps the DOM clean for DevTools inspection.

Whitespace and formatting

Minifying collapses all whitespace — newlines, indentation, spaces between attributes into a single compact line. Human-readable formatting is essential for editing but serves no purpose in production. A well-formatted 4 KB SVG icon often minifies to 1.2 KB with no quality loss.

How This SVG Editor Works

Every operation in this editor runs entirely in your browser using JavaScript string processing and the browser's native SVG rendering engine. No file leaves your device.

  • Upload or paste: Drop an SVG file onto the upload button or paste raw SVG code into the textarea. The editor parses the root <svg> attributes (fill, stroke, width, height, viewBox) and pre-populates the controls with the detected values.
  • Edit tab: Color pickers modify the fill and stroke attributes on the root <svg> element. Changes propagate to shapes that inherit these values. Width, height, and viewBox fields update dimension attributes directly. All changes update the live preview panel instantly.
  • Optimize tab: Four toggles control which optimization passes run. The size comparison panel shows original and optimized byte counts in real time as you toggle options, so you can see the exact contribution of each optimization step.
  • Source tab: Direct textarea editing of the raw SVG source. Every keystroke re-runs the SVG through the renderer and updates the preview. Use this for manual path editing, attribute adjustments, or custom changes not covered by the visual controls.
  • Output tabs: Three output modes: optimized SVG (clean, minified), JSX component (full React component with camelCase attribute conversion), and edited source (with visual edits applied but pre-optimization).

SVG to JSX Conversion for React Projects

JSX requires camelCase for all multi-word HTML attributes. SVG attributes use hyphenated names that are valid XML but invalid JSX. Dropping a raw SVG into a React component produces immediate errors. This editor converts every hyphenated attribute automatically:

Raw SVG (invalid in JSX)

<path
  stroke-width="2"
  stroke-linecap="round"
  fill-rule="evenodd"
  clip-path="url(#clip)"
/>

JSX output (valid React)

<path
  strokeWidth="2"
  strokeLinecap="round"
  fillRule="evenodd"
  clipPath="url(#clip)"
/>

The JSX output wraps the SVG in an exportable React component that accepts className and spread props, making it immediately usable as a reusable icon component in any React, Next.js, or Remix project.

Real-World Use Cases

Cleaning Figma exports

Figma exports include xmlns:xlink, data-name attributes from layer names, and nested groups from Auto Layout. Running a Figma export through this editor typically reduces file size 40–60% and removes all the noise before the SVG enters your codebase.

Building React icon libraries

Use the JSX output tab to convert each icon to a standalone component. The generated component accepts className for Tailwind utility injection and spread props for aria-label and other accessibility attributes.

Fixing broken SVG imports

SVGs pasted into JSX fail silently when attributes like stroke-width or fill-rule are present. Use this editor to convert an SVG to valid JSX before adding it to a component, eliminating the most common cause of invisible SVG rendering errors in React.

Performance auditing

When a Lighthouse report flags large SVG assets, paste each file into this editor's Optimize tab. The before/after size comparison immediately shows which files have the most optimization headroom and which are already clean.

Best Practices for SVG in Production

Always define a viewBox

The viewBox attribute makes SVG scale correctly in any container. Without it, width and height attributes are absolute and the SVG won't respond to CSS sizing. Format: viewBox='minX minY width height' most commonly '0 0 24 24' for 24px icon grids.

Use currentColor for theme-aware icons

Set fill='currentColor' on the root svg element. The icon inherits the CSS color property of its parent, making it automatically adapt to dark mode, disabled states, and any color context without requiring JavaScript or separate icon variants.

Add aria-label for standalone icons

Inline SVGs are invisible to screen readers unless you add role='img' and aria-label='Description' to the svg element, or include a <title> element as the first child. Decorative icons that don't convey information should use aria-hidden='true' instead.

Prefer symbols for repeated icons

If you use the same SVG icon more than twice on a page, define it once as an SVG <symbol> in a hidden sprite sheet and reference it with <use href='#icon-name'>. This renders identically but sends the path data to the browser exactly once, regardless of how many times the icon appears.

Frequently Asked Questions

How do I edit an SVG file online without Illustrator?+

Upload your SVG file using the Upload SVG button, or paste the raw SVG code directly into the Edit tab textarea. Use the color pickers to change fill and stroke colors, the sliders to adjust stroke width, and the dimension fields to resize the SVG. Every change updates the live preview instantly. When you're satisfied, copy the edited SVG from the output panel or download it as an .svg file no Adobe software required.

What does SVG optimization remove, and is it safe?+

SVG optimization removes four categories of data that browsers ignore during rendering: metadata elements (<metadata>, <title>, <desc>) that store application-specific information; HTML comments; editor-specific attributes from Inkscape (inkscape:label, sodipodi:nodetypes) and other tools; and unnecessary whitespace through minification. All of these are safe to remove for production web use. The visual output is identical to the original you can verify this directly by comparing the preview before and after enabling optimizations.

How do I convert SVG to JSX for React?+

After uploading or pasting your SVG, click the 'JSX Component' tab in the output section. The editor automatically converts all hyphenated SVG attributes to their camelCase JSX equivalents: stroke-width becomes strokeWidth, fill-rule becomes fillRule, clip-path becomes clipPath, and so on. The output is a complete exportable React function component that accepts className and spread props. Copy the output and paste it directly into a new .jsx or .tsx file in your React project.

Why is my SVG file so large after exporting from Figma or Illustrator?+

Design tools prioritize round-trip editing fidelity over file size. Figma exports include data-name attributes from every layer, xmlns:xlink namespace declarations, and sometimes nested group structures from Auto Layout. Illustrator adds its own metadata namespace, document history, and grid settings. Inkscape includes its entire node editor state. None of this data affects how the SVG renders in a browser, but all of it bloats the file. Using this editor's Optimize tab with all options enabled typically reduces Figma exports 40–60% and Illustrator exports 50–70%.

What is a viewBox in SVG and why should I always set it?+

The viewBox attribute defines the SVG's internal coordinate system using four values: min-x, min-y, width, and height. It tells the browser what region of the SVG's coordinate space to display and how to scale it. Without a viewBox, the SVG has no intrinsic scaling width and height attributes are treated as fixed pixel dimensions and the SVG won't scale when you change its CSS size. With a viewBox (e.g., 0 0 24 24), you can set the SVG's display size to anything in CSS and it will scale proportionally with perfect sharpness. Always set viewBox on SVGs intended for responsive or variable-size use.

Clean, optimized SVGs load faster, integrate cleanly into React components, and behave predictably in production. Upload your first file above and see the size reduction in seconds no account, completely free.

Free forever · No account · SVG & JSX output

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