SVG to SFD Converter

Convert SVG icons to FontForge SFD editable font sources

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Fast Processing

The SVG to SFD conversion completes in seconds. Cloud servers handle the workload so your device stays responsive.

Open-Source Pipeline

FontForge is free and open-source — your SVG icons enter an entirely free font development workflow from start to finish.

Version Control

SFD is text-based and diffable — track changes to your font project in Git alongside your SVG source files.

How to convert SVG to SFD

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Choose sfd or any other format you need as a result (more than 200 formats supported)

Let the file convert and you can download your sfd file right afterwards

About formats

SVG (Scalable Vector Graphics) is an XML-based vector image format developed by the World Wide Web Consortium (W3C), with the 1.0 specification published as a Recommendation on September 4, 2001. Unlike binary vector formats, SVG describes shapes, paths, text, gradients, filters, and animations in human-readable XML markup that can be authored in a text editor, processed by scripting languages, and styled with CSS. The format supports both vector elements (lines, curves, polygons defined by mathematical coordinates) and embedded raster images, along with interactivity through JavaScript event handling and declarative animations via SMIL or CSS transitions. SVG is natively rendered by all modern web browsers without plugins, making it the standard format for resolution-independent graphics on the web — from icons and logos to interactive data visualizations and animated illustrations. A major advantage is infinite scalability: SVG graphics remain perfectly sharp on any display, from low-DPI monitors to ultra-high-resolution Retina screens, because rendering is computed from geometry rather than pixels. The text-based nature provides another core strength — SVG content is indexable by search engines, accessible to screen readers, and trivially manipulable via the DOM using standard web technologies. The active W3C specification continues to evolve with modern web platform capabilities, maintaining SVG's position as the essential vector format for responsive web design.

Developer: W3C

Initial release: September 4, 2001

SFD (SplineFont Database) is the native source file format of FontForge, the free and open-source font editor originally created by George Williams in 2000 under the name PfaEdit. The format stores a complete font project — glyph outlines (cubic and quadratic splines), advance widths, side bearings, hinting instructions, kerning and OpenType feature tables, naming records, and metadata — in a single human-readable text file. Each glyph is described by its Unicode code point, outline coordinates, reference composites, and anchors, making the entire font design inspectable and diffable with standard text tools. SFD functions as the editable working format during font development, from which finished fonts are compiled to binary formats like OTF, TTF, or WOFF. A primary advantage is version control friendliness — because SFD is plain text, font designers can track changes to individual glyphs, merge contributions from collaborators, and maintain full revision history using Git or any other VCS. The format's completeness is another strength: it preserves every piece of data that FontForge can represent, including TrueType instructions, contextual substitution lookups, and multiple master axes, avoiding round-trip data loss during editing. The SFD specification is publicly documented and has evolved through several versions. FontForge's widespread adoption in the open-source type design community means SFD serves as the source format for hundreds of freely licensed font families distributed worldwide.

Developer: George Williams

Initial release: November 7, 2000

Frequently Asked Questions

Why convert SVG to SFD?

SFD is FontForge's native format — converting SVG to SFD gives you a fully editable font source that you can refine, expand, and export.

What opens SFD files?

FontForge is the primary application — a powerful, free font editor available on Linux, macOS, and Windows for comprehensive font development.

Can I export SFD to TTF or OTF?

Yes — FontForge exports SFD projects to TTF, OTF, WOFF, and other final font formats once your glyph editing is complete.

Is SFD human-readable?

SFD is a text-based format — you can inspect spline data, metrics, and kerning values in any text editor alongside FontForge.

Is SVG to SFD conversion free?

Standard conversions are free on Convertio. Premium plans support batch glyph import for large icon font projects.

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Specific converters

TTF to SFD

OTF to SFD

SVG to SFD

WOFF to SFD

BIN to SFD

CFF to SFD

CID to SFD

DFONT to SFD

PFA to SFD

PFB to SFD

PS to SFD

PT3 to SFD

T11 to SFD

T42 to SFD

SVG to SFD Quality Rating

4.6 (5 votes)

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