FIG to SK1 Converter

Online FIG to SK1 — professional vector conversion

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Quality Preserved

Convertio ensures your FIG diagrams look great in SK1. Conversion maintains visual fidelity from source to output.

Any Modern Browser

Chrome, Firefox, Safari, Edge — the converter works in all of them. No browser-specific dependencies.

Remote Processing

Heavy lifting happens on Convertio's servers — your device resources stay untouched during the entire conversion.

How to convert FIG to SK1

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

Choose sk1 or any other format you need as a result (more than 200 formats supported)

Let the file convert and you can download your sk1 file right afterwards

About formats

FIG is the native file format of Xfig, a free vector graphics editor for the X Window System, originally written by Supoj Sutanthavibul at the University of Texas at Austin in 1985. The format uses a plain-text structure where each graphic object is described on one or more lines with numeric parameters specifying object type, coordinates, line properties, fill attributes, and depth ordering. FIG supports compound objects (groups), polylines, polygons, splines, arcs, ellipses, text strings, and imported bitmaps, each with configurable colors, line styles, arrow heads, and area fills. Files begin with a header line declaring the format version (currently 3.2), followed by a resolution specification and the object definitions. One advantage is exceptional simplicity — the entirely text-based format is trivially parsed, generated, and manipulated by scripts, making FIG popular as an intermediate format in automated diagram generation pipelines. The rich ecosystem of conversion tools is another strength: fig2dev exports FIG files to dozens of output formats including EPS, PDF, SVG, LaTeX picture environments, PSTricks, and TikZ. This made Xfig and FIG especially popular in academic and scientific communities, where authors generate publication-quality figures that integrate seamlessly with LaTeX documents. While graphical tools have evolved since the 1980s, FIG remains in use among researchers who value its scriptability, LaTeX integration, and well-documented format stability.

Developer: Supoj Sutanthavibul

Initial release: 1985

SK1 is the native file format of the sK1 project, an open-source vector graphics editor and conversion engine started by Igor Novikov in 2003 as a successor to Bernhard Herzog's Skencil. The format evolved from the original SK format, extending its capabilities while maintaining the text-based, Python-readable syntax for describing vector documents. SK1 files encode complete document structures including multiple pages, layers, guidelines, and a full hierarchy of graphic objects — Bezier paths, rectangles, circles, polygons, text blocks, and embedded raster images — with attributes for fills (solid, gradient, pattern, hatching), strokes, and transformations. The sK1 project distinguished itself by focusing on prepress and professional print production features, adding CMYK color management, ICC color profiles, spot color support, and PDF/PostScript output — capabilities unusual in open-source vector editors. One advantage is professional color handling — sK1's CMYK workflows and color management make it one of the few open-source tools suitable for print-ready vector production. The project's companion tool, UniConvertor, leverages the SK1 format as an intermediate representation for converting between numerous vector formats (CDR, CMX, WMF, EMF, SVG, and others), giving SK1 significance beyond the editor itself as a universal interchange format. The text-based file structure preserves the readability and scriptability advantages inherited from Skencil's original SK format.

Developer: Igor Novikov / sK1 Project

Initial release: 2003

Frequently Asked Questions

Why convert FIG to SK1?

FIG is uncommon outside Linux and academic publishing. SK1 brings your vectors into sK1 Vector and similar professional software.

How do I open an SK1 file?

You can open SK1 files with sK1 vector editor, UniConvertor, and Inkscape with appropriate import plugins.

How many FIG files can I convert at once?

You can upload and convert multiple FIG files in one session. Batch conversion processes all files simultaneously.

Can I convert FIG to SK1 on a Mac?

Convertio is browser-based and works on Mac, Windows, Linux, and mobile. No platform restrictions for this conversion.

Do I need to install anything for FIG to SK1?

No — the converter runs entirely in your browser. No downloads, plugins, or extensions are needed for the conversion.

Does Convertio support FIG files from all Xfig versions?

Convertio handles standard FIG format files. Most Xfig versions produce compatible output that converts cleanly.

Related Conversions

FIG to JPG

FIG to PDF

FIG to PNG

FIG to EPS

FIG to SVG

FIG to JPEG

FIG to BMP

FIG to PSD

FIG to DOC

FIG to GIF

FIG to DXF

FIG to DOCX

FIG to TIFF

FIG to AI

FIG to EMF

FIG to HTML

FIG to ODT

FIG to WMF

FIG to PCX

FIG to SGI

FIG to SK

FIG to OTB

FIG to DOT

FIG to RGB

FIG to PS

FIG to CGM

FIG to SK1

FIG to PLT

FIG to JP2

FIG to WBMP

FIG to TGA

FIG to ICO

FIG to CUR

FIG to PBM

FIG to PGM

FIG to PPM

FIG to WEBP

FIG to EXR

FIG to FAX

FIG to FTS

FIG to G3

FIG to HDR

FIG to HRZ

FIG to IPL

FIG to MAP

FIG to MNG

FIG to MTV

FIG to PAL

FIG to PALM

FIG to PAM

FIG to PCD

FIG to PCT

FIG to PDB

FIG to PFM

FIG to PICON

FIG to PICT

FIG to PNM

FIG to RAS

FIG to RGBA

FIG to RGBO

Specific converters

JPG to SK1

PNG to SK1

CDR to SK1

SVG to SK1

DXF to SK1

AI to SK1

PSD to SK1

JPEG to SK1

EPS to SK1

WEBP to SK1

GIF to SK1

BMP to SK1

JFIF to SK1

PLT to SK1

HDR to SK1

HEIC to SK1

SK to SK1

AVIF to SK1

ICO to SK1

3FR to SK1

ARW to SK1

CR2 to SK1

CRW to SK1

CUR to SK1

DCM to SK1

DCR to SK1

DDS to SK1

DNG to SK1

ERF to SK1

EXR to SK1