CGM vs SVG: Computer Graphics Metafile vs Scalable Vector Graphics
Compare ISO/IEC 8632 Computer Graphics Metafile (.cgm) technical illustrations with W3C Scalable Vector Graphics (.svg). Explore aerospace standards, CAD schematics, and modern browser rendering.
Computer Graphics Metafile (CGM) is an international ISO/IEC standard 2D vector and bitmap format widely deployed across aerospace (ATA Spec 2100), defense, automotive, and petroleum engineering documentation. Scalable Vector Graphics (SVG) is the open XML-based W3C standard for interactive vector graphics natively rendered by every modern web browser, graphic design application, and digital publishing platform.
| FEATURE | CGM | SVG |
|---|---|---|
| Standardization Body | ISO/IEC 8632 / ANSI (1987) | World Wide Web Consortium (W3C) |
| Primary Industries | Aerospace, defense, CAD schematics, oil & gas | Web development, UI design, digital vector art |
| Encoding Variants | Binary, Clear-Text, and Character-Encoded | Standard UTF-8 XML text (or SVGZ gzip) |
| Web Browser Support | Requires dedicated plugins or conversion | Universal native support (HTML5 <svg> tag) |
| Styling & Scripting | Static parameter attributes | Full CSS styling and DOM JavaScript manipulation |
- Strict compliance with aerospace and military technical documentation standards (ATA e-Business, WebCGM, S1000D)
- Supports both binary-encoded compact files and human-readable clear-text directives
- Embedded hotspot metadata and interactive electrical schematic hyperlinking
- Standard legacy interchange container for enterprise CAD systems and technical publishing suites
- Universal native rendering across all modern web browsers, smartphones, and desktop operating systems
- Easily styled with CSS and manipulated dynamically via JavaScript and the HTML5 DOM
- Native import and export in all modern design tools (Figma, Adobe Illustrator, Inkscape)
- Open XML text format compatible with standard version control (Git), search indexing, and web workflows
CGM remains a critical archival format for aerospace engineers, airlines, and defense contractors referencing legacy maintenance manuals and technical blueprints. When modernizing documentation for the web, integrating drawings into digital workflows, or collaborating with teams who lack specialized CGM viewers, converting CGM files to standard SVG delivers pixel-perfect vector fidelity and universal browser accessibility.
Converting files between CGM and SVG frequently? The convrtr Chrome Extension lets you right-click any image on any webpage or open the Side Panel to convert assets instantly using local WebAssembly with zero server uploads.