Free Base64 to SVG Converter Online - No Signup

Decode raw Base64 and complete SVG Data URLs directly in your browser. Validate UTF-8, XML, SVG structure and dimensions, create safer previews, copy markup, and download individual SVG files or ZIPs.

Decode Base64 See how it works
No server uploads Exact SVG downloads Sanitized previews Batch ZIP export

Base64 to SVG Converter

Paste raw Base64 or complete data:image/svg+xml;base64,... Data URLs. Separate raw entries with a blank line or place complete Data URLs one per line.

100% local decoding
Blank line between raw entries · one Data URL per line 0 characters

Import Base64 text files

Drop files here or browse from your device

.txt, .b64, .base64 · 40 MiB each

01
Private by design Base64 remains inside your browser
02
Strict validation Base64, UTF-8, XML, and SVG checks
03
Safer previews Active content and external URLs removed
04
Exact downloads Original decoded SVG bytes retained
Restore vector image markup

Convert Base64 to SVG privately in your browser

This Base64 to SVG Converter restores SVG vector files from raw Base64 strings and complete SVG Data URLs without uploading the source text to a conversion server.

Base64 is a text representation of binary data. Decoding restores the original UTF-8 SVG markup. The converter then checks the Base64 structure, XML syntax, SVG root element, namespace, dimensions, and browser rendering.

Downloaded files preserve the exact decoded bytes. For browser previews, a separate sanitized copy is created with active elements, event handlers, unsafe CSS, and external references removed.

Why sanitized previewing matters

SVG is an XML-based document format and can contain scripts, event attributes, embedded documents, styles, links, and external resources. Treat SVG files from unknown sources as untrusted even when their XML structure is valid.

Complete decoding workflow

A dependable Base64 to SVG converter

Designed for individual vector files and larger batches with strict validation, safer previewing, responsive controls, and flexible downloads.

Local and private

Base64 and SVG data are processed in the current browser rather than uploaded to a remote server.

Raw and Data URL input

Decode raw Base64 or complete data:image/svg+xml;base64 values.

Sanitized image previews

Preview copies remove scripts, event handlers, embedded documents, and external references.

Three-worker queue

Process up to 100 entries through a controlled, memory-conscious batch queue.

Copy exact SVG markup

Copy the decoded UTF-8 SVG source for use in development and design workflows.

SVG and ZIP downloads

Save each result separately or package all successful SVG files in one collision-safe ZIP.

Three simple steps

How to convert Base64 to SVG online

No account, installation, image upload, or server-side conversion is required.

Step 1

Paste or import Base64

Add raw Base64, complete SVG Data URLs, or supported text files to the local queue.

Step 2

Decode and validate

Validate Base64, decode UTF-8, parse the XML, inspect SVG dimensions, and prepare a preview.

Step 3

Copy or download

Preview the sanitized copy, copy SVG markup, or download individual files and a ZIP archive.

Representation comparison

Base64 text vs SVG image file

Both may represent the same vector document, but they serve different storage and delivery tasks.

Base64 text
SVG file
Representation ASCII text representing UTF-8 SVG bytes
Representation XML-based scalable vector markup
Typical use Data URLs, JSON, APIs, and embedded data
Typical use Websites, design tools, icons, and illustrations
Size Usually about 33% larger than decoded bytes
Size Original XML and vector markup size
Editing Must be decoded before normal XML editing
Editing Can be edited with text or vector tools
Security and decoding guidance

Best practices for Base64 SVG data

1

Use the correct MIME type

Complete Data URLs should begin with data:image/svg+xml;base64,.

2

Treat unknown SVG as untrusted

SVG can contain active or external content. Review downloaded files before publishing them.

3

Separate batch entries clearly

Use a blank line between raw Base64 entries or one complete Data URL per line.

4

Understand preview sanitization

The preview may look different if scripts, external resources, or unsafe CSS are removed.

Common questions

Base64 to SVG converter FAQ

How do I convert Base64 to SVG online?

Paste raw Base64 or a complete data:image/svg+xml;base64 Data URL, add it to the queue, select Decode to SVG, and then preview, copy, or download the validated SVG result.

Is this Base64 to SVG converter free?

Yes. The converter is free, requires no account, adds no watermark, and preserves the exact decoded bytes in downloaded SVG files.

Is my Base64 or SVG data uploaded to a server?

No. Base64 decoding, UTF-8 and XML validation, preview preparation, copying, and downloads happen locally inside your browser.

Can I decode raw Base64 and complete SVG Data URLs?

Yes. The converter accepts raw Base64 and complete data:image/svg+xml;base64 Data URLs. Whitespace is removed and safely repairable missing Base64 padding is added.

Does the converter change my downloaded SVG?

No. The downloadable SVG preserves the exact decoded bytes. A separate sanitized copy is created only for the browser preview to reduce the risk from active SVG content and external references.

Why is my Base64 SVG reported as invalid?

The input may contain invalid Base64, non-UTF-8 text, malformed XML, a document type declaration, a missing SVG root element, invalid dimensions, or markup that the browser cannot render as an SVG image.

What are the Base64 to SVG safety limits?

The converter accepts up to 100 entries, 10 MiB of decoded data per entry, 80 MiB combined decoded data, and 40 MiB per imported text file. SVG dimensions are limited to 32,768 units per side and 100 megapixels.

Continue working

Related Base64 and SVG tools

Encode, decode, or convert vector image data for your next design and development workflow.

Reverse conversion

SVG to Base64

Encode SVG files as raw Base64 or complete browser-ready Data URLs.

Raster conversion

SVG to PNG

Render compatible SVG vector images as downloadable PNG files.

PNG decoding

Base64 to PNG

Restore Base64-encoded PNG image data as validated PNG files.

Ready to decode Base64 into SVG?

Decode raw Base64 or SVG Data URLs privately with strict validation, sanitized previews, markup copying, individual downloads, and ZIP export.

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