Convert SVG to TOML

Why Convert SVG to TOML?

Converting SVG to TOML allows you to extract structured data from vector graphics and represent it in a clean, human-readable configuration format. TOML's typed key-value pairs and table structure are well-suited for organizing SVG metadata, text content, and element attributes into a format that can be easily read and processed by configuration-aware tools.

One common use case is asset management. When building design systems or icon libraries, extracting SVG metadata into TOML creates a catalog that can be consumed by build tools, static site generators, and CI/CD pipelines. TOML's clear syntax makes the catalog easily editable by team members.

TOML is also ideal for configuration-driven workflows. If your application generates SVG content dynamically, converting existing SVG files to TOML provides a template of the data structure needed, which can then be modified and used to regenerate graphics programmatically.

Our converter parses the SVG XML structure, extracts text elements, metadata, and key attributes, then generates a well-organized TOML document with appropriate sections and typed values.

Key Benefits of Converting SVG to TOML:

• Readable Structure: TOML's clear syntax makes SVG data easy to understand and edit
• Typed Values: Numbers, strings, and booleans are properly typed in TOML
• Tool Integration: Use SVG data in Cargo, pyproject.toml, or Hugo configs
• Asset Cataloging: Build searchable metadata catalogs from SVG libraries
• Version Control: Track SVG content changes in plain text TOML with Git
• Configuration Templates: Generate TOML configs for dynamic SVG generation

Practical Examples

Example 1: Icon Metadata

Input SVG file (icon.svg):

<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
  <title>Search Icon</title>
  <desc>Magnifying glass icon for search functionality</desc>
  <circle cx="10" cy="10" r="7" fill="none" stroke="#333"/>
  <line x1="15" y1="15" x2="22" y2="22" stroke="#333"/>
</svg>

Output TOML file (icon.toml):

title = "Search Icon"
description = "Magnifying glass icon for search functionality"

[dimensions]
width = 24
height = 24
viewBox = "0 0 24 24"

[[elements]]
type = "circle"
cx = 10
cy = 10
r = 7

[[elements]]
type = "line"
x1 = 15
y1 = 15
x2 = 22
y2 = 22

Example 2: Chart Configuration

Input SVG file (chart.svg):

<svg xmlns="http://www.w3.org/2000/svg" width="500" height="300">
  <title>Sales Dashboard</title>
  <text x="250" y="30" text-anchor="middle">Monthly Revenue</text>
  <text x="80" y="280">Jan</text>
  <text x="180" y="280">Feb</text>
  <text x="280" y="280">Mar</text>
</svg>

Output TOML file (chart.toml):

title = "Sales Dashboard"

[dimensions]
width = 500
height = 300

[[text_elements]]
content = "Monthly Revenue"
x = 250
y = 30

[[text_elements]]
content = "Jan"
x = 80
y = 280

[[text_elements]]
content = "Feb"
x = 180
y = 280

[[text_elements]]
content = "Mar"
x = 280
y = 280

Example 3: Design Token Extraction

Input SVG file (design.svg):

<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200">
  <title>Brand Colors</title>
  <rect width="200" height="50" fill="#3498db"/>
  <text x="100" y="30" text-anchor="middle" fill="white">Primary Blue</text>
  <rect y="50" width="200" height="50" fill="#2ecc71"/>
  <text x="100" y="80" text-anchor="middle" fill="white">Success Green</text>
</svg>

Output TOML file (design.toml):

title = "Brand Colors"

[dimensions]
width = 200
height = 200

[[text_elements]]
content = "Primary Blue"
x = 100
y = 30

[[text_elements]]
content = "Success Green"
x = 100
y = 80

Frequently Asked Questions (FAQ)

Q: What is TOML format?

A: TOML (Tom's Obvious Minimal Language) is a configuration file format created by Tom Preston-Werner (co-founder of GitHub). It uses clear key-value pairs, sections (tables), and typed values to store structured data in a human-readable format. TOML is widely used in Rust (Cargo.toml), Python (pyproject.toml), and many other tools.

Q: What SVG data is included in the TOML output?

A: The converter extracts text elements with their content and positions, title and description metadata, SVG dimensions, and key element attributes. The data is organized into TOML tables and arrays for a clean, structured representation.

Q: Can I use the TOML output as application configuration?

A: Yes, the generated TOML file can serve as a configuration template for applications that generate SVG content dynamically. You can modify the values and use them to programmatically create or update SVG graphics through your application code.

Q: How does TOML compare to JSON or YAML for this use case?

A: TOML is more readable than JSON (supports comments, no quotes on keys) and less error-prone than YAML (no indentation-based nesting issues). For configuration and metadata extraction from SVG, TOML provides the best balance of readability and structure.

Q: Are SVG numeric values preserved as numbers in TOML?

A: Yes, the converter detects numeric values in SVG attributes (coordinates, dimensions, font sizes) and represents them as TOML integers or floats rather than strings. This preserves type information and makes the data immediately usable in calculations.

Q: Can I reconstruct the SVG from the TOML output?

A: The TOML output captures text content and basic metadata, but complex visual elements like paths, gradients, and filters are not fully represented. For simple SVG files, the TOML data may contain enough information for reconstruction, but complex graphics cannot be fully recreated.

Q: How are SVG namespaces handled?

A: SVG XML namespaces are not directly represented in TOML, as TOML does not have a namespace concept. The converter focuses on extracting the content and attributes that carry meaningful data, stripping away XML-specific structural information.

Q: Which programming languages can parse the output TOML?

A: TOML parsers are available for virtually all major languages: Python (tomllib built-in since 3.11), Rust (toml crate), Go (go-toml), JavaScript (toml-node), Java, Ruby, PHP, and more. This makes the output highly portable across technology stacks.