SK to BMP Converter

Convert SK to BMP online — uncompressed raster output

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Lossless Quality

BMP stores every pixel without compression. Your SK artwork converts to a bitmap with complete visual fidelity preserved.

Works Everywhere

Convert SK to BMP from any device with a browser. The converter is accessible on desktop, tablet, and mobile alike.

Rapid Processing

Cloud servers handle the conversion quickly. Even detailed SK drawings become BMP images in a matter of seconds.

How to convert SK to BMP

1

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

2

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

3

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

About formats

SK is the native file format of Skencil (originally named Sketch), a free vector graphics editor for Linux created by Bernhard Herzog, with the first public release on October 31, 1998. Skencil holds historical significance as one of the earliest full-featured vector drawing applications written almost entirely in Python, with only performance-critical rendering components implemented in C. The SK file format uses a text-based, Python-like syntax to describe document structure — pages, layers, groups, and individual graphic objects are represented as nested statements with parameters specifying coordinates, colors, line styles, and transformations. The format supports Bezier curves, rectangles, ellipses, text objects with font specifications, imported raster images, gradient and pattern fills, and hierarchical grouping with affine transforms. One advantage is human readability — SK files can be opened in any text editor, making it possible to inspect, modify, or generate artwork programmatically using simple scripts. The Python-native structure also provides a benefit for automation: since Skencil itself is a Python application, the file format integrates naturally with scripting workflows for batch processing and procedural graphic generation. While Skencil's development slowed after the mid-2000s, its SK format became the foundation for the sK1 project, which extended the format and continued active open-source vector graphics development. SK files remain convertible through sK1, UniConvertor, and other open-source tools.
Developer: Bernhard Herzog
Initial release: October 31, 1998
BMP (Bitmap) is a raster image file format developed by Microsoft for the Windows operating system, introduced with Windows 3.0 in 1990. The format stores pixel data in a straightforward structure: a file header specifying dimensions, color depth, and compression method, followed by an optional color palette and then the raw pixel array. BMP supports color depths from 1-bit monochrome through 4-bit and 8-bit indexed color to 16-bit, 24-bit true color, and 32-bit with alpha channel. Most BMP files store pixels uncompressed (BI_RGB), though optional RLE compression is available for 4-bit and 8-bit modes. Pixels are arranged in bottom-up row order by default, with each row padded to a 4-byte boundary. One advantage is absolute simplicity — the format has no complex encoding, filtering, or compression layers, making BMP files trivial to read and write programmatically in any language. This simplicity also means BMP images render with zero decoding overhead, useful in scenarios where decompression latency matters. The format's deep Windows integration is another strength: BMP is the native bitmap format for Windows GDI, clipboard operations, and device-independent bitmap (DIB) handling, ensuring first-class support across the entire Windows ecosystem. While BMP's lack of compression produces large files unsuitable for web use or storage-constrained environments, it remains widely used as an intermediate format in image processing, as a clipboard exchange format, and in embedded systems where decoding simplicity outweighs file size.
Developer: Microsoft
Initial release: 1990

Frequently Asked Questions

Why convert SK to BMP?

BMP is a simple uncompressed raster format. Converting SK to BMP gives you a pixel-perfect image with zero compression artifacts.

What opens BMP files?

Nearly every image viewer and editor on Windows, macOS, and Linux handles BMP. Web browsers also display BMP images natively.

Will the BMP file be large?

BMP is uncompressed, so files tend to be larger than JPEG or PNG. This preserves full image quality without any data loss.

Does conversion flatten SK layers?

BMP is a flat bitmap format. All SK layers and objects are merged into a single raster image during the conversion.

Is this service free?

Convertio offers free SK to BMP conversion. Premium users benefit from larger upload limits and faster processing.