KWD to SIX Converter

Turn KWD files into SIX images — free online converter

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Any Device Works

Convert KWD to SIX from a phone, tablet, laptop, or desktop — all you need is a web browser on any OS.

Reliable Output

Produce quality SIX images from your KWD documents — the converter handles the format translation transparently.

Format Flexibility

Beyond SIX, Convertio supports hundreds of other output formats — convert your KWD files to whatever you need.

How to convert KWD to SIX

1

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

2

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

3

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

About formats

KWD is the native document format of KWord, the word processor component of KOffice (later renamed Calligra Suite), developed by the KDE community with its first stable release in KOffice 1.0 in 2000. KWord distinguished itself from other word processors through a frame-based layout model where text, images, and other content existed in independent frames that could be positioned freely on the page, similar to desktop publishing applications — a departure from the linear text-flow approach used by most word processors. KWD files store document content in a compressed XML format that describes the frame hierarchy, text content with formatting markup, paragraph styles, page dimensions, headers, footers, and embedded media. The format uses a ZIP container packaging the XML document alongside any referenced images and resources. One advantage was the flexible frame-based layout — users could position text and image frames independently on the page, enabling newsletter-style layouts and creative document designs without switching to a dedicated DTP application. The open XML structure is another benefit, making KWD files transparent and accessible to automated processing. KWord was included in several Linux distributions as part of the KDE desktop environment during the 2000s. The project was eventually discontinued in favor of Calligra Words, which adopted the ODF standard. KWD files can be opened with legacy KOffice installations or converted through document conversion tools.
Developer: KDE
Initial release: 2000
SIX is a file extension for SIXEL (Six Pixel) graphics data, a bitmap graphics format developed by Digital Equipment Corporation (DEC) in 1983 and introduced with the LA50 dot matrix printer. SIXEL encodes images as a sequence of printable ASCII characters, where each character represents a column of six vertical pixels (a 'sixel') — the character's ASCII value minus 63 provides a 6-bit binary pattern, with each bit controlling one pixel in the vertical column. The encoding is structured as a series of sixel bands (each six pixels tall) across the image width, with control sequences for color selection (up to 256 registers with HLS or RGB specification), repeat counts (run-length encoding for efficiency), carriage return, and newline commands. SIXEL data is transmitted to the output device using DEC's standard escape sequence protocol, embedded within the text stream alongside regular character output. Originally designed for DEC's line of printers and later supported by DEC VT-series terminals (VT240, VT330, VT340), SIXEL has experienced a remarkable revival in modern terminal emulator software. One advantage is terminal-native image display: SIXEL allows images to be rendered directly within a text terminal session without requiring a graphical window system, enabling command-line tools to display graphs, photographs, and previews inline with text output. This capability has driven adoption in modern terminals like mlterm, xterm, WezTerm, and foot. SIX/SIXEL data can be generated by ImageMagick, libsixel, and chafa, and viewed in any SIXEL-capable terminal emulator.
Initial release: 1983

Frequently Asked Questions

Why convert KWD to SIX?

SIX (Sixel) encodes images for terminal display — convert KWD pages to view them directly in a terminal.

What software opens SIX files?

You can open SIX files with terminals with Sixel graphics support, such as xterm, mlterm, and compatible emulators.

How fast is the conversion?

Most KWD files convert to SIX in seconds. Cloud servers handle the processing so your device stays fully responsive.

Is my KWD file safe during conversion?

Uploaded KWD files are deleted immediately after conversion. SIX output files are removed from servers within 24 hours for your privacy.

Is KWD to SIX conversion free?

Yes — basic conversions are free. Premium plans unlock larger files, batch processing, and priority queue access.

Can I convert multiple KWD files to SIX?

Yes — upload several KWD files at once and batch-convert them all to SIX in a single session on Convertio.