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SVG to Base64

Turn an SVG into Base64, a data URI, and the CSS to use it.

  • Free
  • No signup
  • Nothing uploaded
  • No watermark

Preview

Base64
PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJjdXJyZW50Q29sb3IiIHN0cm9rZS13aWR0aD0iMiI+PHBhdGggZD0iTTUgMTNsNCA0TDE5IDciLz48L3N2Zz4=
Data URI
data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJjdXJyZW50Q29sb3IiIHN0cm9rZS13aWR0aD0iMiI+PHBhdGggZD0iTTUgMTNsNCA0TDE5IDciLz48L3N2Zz4=
In CSS
background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJjdXJyZW50Q29sb3IiIHN0cm9rZS13aWR0aD0iMiI+PHBhdGggZD0iTTUgMTNsNCA0TDE5IDciLz48L3N2Zz4=");
In HTML
<img src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJjdXJyZW50Q29sb3IiIHN0cm9rZS13aWR0aD0iMiI+PHBhdGggZD0iTTUgMTNsNCA0TDE5IDciLz48L3N2Zz4=" alt="">

How to Convert SVG to Base64 Online

SVG to Base64: before and after SVG A INPUT SVG TO BASE64 B64 A RESULT

Paste the SVG source into the box and four outputs appear: the raw Base64, a data URI, a CSS background-image rule and an HTML img tag. Each has a copy button and there is a live preview of the icon. It is the quick way to inline a small icon into a stylesheet or an email without a separate file request.

Turns an SVG into Base64, a data URI, and the CSS to use it. For SVG specifically, percent-encoding is usually smaller than Base64 — SVG is text, so it does not benefit from Base64 the way binary formats do.

No software to install Free Works on any device

Step-by-Step Guide to Convert SVG to Base64

  1. 1. Paste your SVG source into the box

  2. 2. The Base64, data URI and the CSS to use it are built as you type

  3. 3. Copy whichever form you need

No .svg file to hand? Download a sample Image file (603 B) and try it.

Try it now

What is SVG to Base64 Conversion?

Turns an SVG into Base64, a data URI, and the CSS to use it. For SVG specifically, percent-encoding is usually smaller than Base64 — SVG is text, so it does not benefit from Base64 the way binary formats do.

At a glance

  • Takes: SVG markup pasted as text
  • Gives: Base64, data URI, CSS rule, HTML img tag
  • Preview: the decoded SVG drawn on the page
  • Copy: one button per output
  • Size: Base64 adds about a third to the SVG's length
  • Runs: entirely on the page, nothing sent

Why Use Online Image Tools?

Every website, exam form and social app wants pictures in its own size, shape and format. Resizing, compressing, cropping and converting on your own device gets a photo accepted the first time, without sending it anywhere.

“The right photo in the wrong size still gets rejected.”
  • Photos that meet size limits
  • Crops that fit each platform
  • Faster loading web pages
  • Text and watermarks added
  • Any format to any format
  • Private details stripped from photos
  • Exam photos made to rule
  • Colours picked straight from pictures

Popular Uses for Photo Editing Tools

These are the picture jobs people bring here most often.

  • Exam application photos Resize a photo and signature to the exact size and KB limit an exam form asks.
  • iPhone HEIC photos Convert HEIC pictures to JPG so they open on Windows and upload to any site.
  • Faster websites Convert product images to WebP and compress them so pages load quicker on mobile.
  • Social media posts Crop and resize a picture to fit Instagram, Facebook or a Discord profile.
  • Passport-style photos Make a passport-size ID photo, cropped to the size a form or office asks for.
  • Removing location data Strip GPS and camera details from a photo before posting it publicly.
  • Favicons for websites Turn a logo into the small icon that shows in a browser tab.
  • Collages and GIFs Put several photos into one collage or join frames into a short animated GIF.

What the SVG to Base64 Converter Does

Understands SVG structure rather than treating the file as bytes

Handles the padding and character-set rules the specification requires

Vector stays vector — the shapes are rewritten rather than rasterised at a fixed size

Reports the encoded size, which matters because Base64 adds about a third to the original

Why Use ToolXkit for SVG to Base64?

Your files stay with you

Everything runs inside your browser. Nothing you open or type is uploaded to a server.

Picture Tools for Different Users

Students and job applicants

Get photos and signatures accepted by admission and recruitment forms first time.

Online sellers

Prepare product photos that look sharp and load quickly on shop pages.

Web developers

Convert images to WebP or AVIF and make favicons for new sites.

Social media users

Resize pictures for each platform and add text or borders to posts.

Bloggers

Compress and watermark images so articles stay quick and credit stays with you.

Designers

Pull colour palettes from photos and check image sizes and resolution.

Best Times to Resize or Convert an Image

Image tools help most when you are:

  • Filling in an online application
  • Uploading a photo that is too large
  • Opening iPhone pictures on Windows
  • Posting to different social apps
  • Speeding up a slow web page
  • Sharing a photo taken at home
  • Adding a watermark to your work
  • Making a favicon for a new site

Tips and Good to Know

  1. For a stylesheet, percent-encoding is usually smaller than Base64 and stays readable. Data URI Generator does that; use Base64 when the SVG has quotes or characters that would need escaping.

  2. Inlining a big illustration bloats the CSS or HTML and cannot be cached separately. Keep it for small icons and logos.

  3. It takes pasted code, not a file picker. Open the .svg in a text editor and copy the markup in.

Frequently Asked Questions

Answers to common questions about this tool.

Do I need to install anything to convert SVG to Base64?

No. SVG to Base64 runs entirely in your browser — there is nothing to download, no extension and no desktop program. It works the same on Windows, macOS, Linux, Android and iPhone.

Is it safe to convert SVG to Base64 online?

Safer than the usual alternative, yes. Most online tools upload your file to a server you know nothing about, where it sits until someone deletes it. Here the file never leaves your device — the processing happens in the page itself, so there is no server copy to leak, retain or sell.

Does SVG to Base64 reduce my photo’s quality?

Converting and cropping keep quality close to the original. Compressing trades a little detail for a much smaller file, and a lighter setting keeps more of it. Compare the preview with your original before saving.

Will my photo be accepted by the exam form?

The exam photo tools follow the size, dimensions and file weight given in the official notice. Always read the latest notice too, because boards sometimes change their rules between years.

Can I edit pictures with SVG to Base64 straight from my gallery?

Yes. Pick a photo from your gallery or take one with the camera, then save the result back to your phone. Everything works in the browser, so there is no app to install.

Is SVG to Base64 free with no watermark?

Yes. Use it for as many pictures as you need without an account, and each image comes back without any logo or mark from the site.

Further reading

More Images

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