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SVG to Base64

Convert SVG markup into copy-ready Base64 or a data URI without uploading files. Preview the decoded SVG and export the encoded result when needed.

Browser-based SVG encoder

Convert SVG markup into clean Base64 or a ready data URI.

Paste SVG code, upload a file or try the built-in sample. The converter validates the SVG locally, encodes it as UTF-8 Base64 and lets you copy the exact output you need.

Local only UTF-8 safe Decoded preview Copy-ready
Drop an SVG file here or paste SVG markup into the input editor below.
SVG size—
Base64 size—
Size increase—
Characters—
Output modeBase64
StatusReady
Preview

Original vs decoded Base64

Original previewNo SVG

Paste or upload an SVG to preview it here.

Decoded previewWaiting

Convert to compare the decoded result.

Processed locally viewBox: — Scripts: — Events: — Output: —
Input

SVG markup

Paste a complete SVG document or inline SVG element.

Result

Base64 result

Raw Base64 output will appear here after conversion.

How It Works

SVG to Base64 reads the SVG text in your browser, validates that the markup has an SVG root, then encodes the exact UTF-8 source into Base64. You can copy the raw Base64 value, copy a full data:image/svg+xml;base64 URI, download the encoded text and compare the original SVG with a decoded preview before using the result.

Use Cases

  • Embedding small SVG assets in JSON, HTML or CSS workflows
  • Creating Base64 SVG payloads for tests, demos and documentation
  • Copying a data URI when a single self-contained string is easier than a separate file
  • Checking whether SVG markup contains scripts, events or missing viewBox before embedding it

FAQ

Does SVG to Base64 upload my file?

No. The converter is designed to run in the browser, so pasted or uploaded SVG markup stays on your device.

Why is the Base64 output larger than the SVG?

Base64 encoding commonly increases text length. The benefit is portability: the SVG can be stored or copied as a plain encoded string.

What is the difference between Base64 and a data URI?

Raw Base64 is only the encoded payload. A data URI adds the data:image/svg+xml;base64, prefix so the result can be used directly in many HTML and CSS contexts.

Should I optimize SVG before converting it to Base64?

Usually yes for production assets. A smaller SVG creates a smaller Base64 string, so SVG Optimizer or SVG Minifier can be useful before encoding.