SIXEL to FTS conversion is the process of transforming an image encoded in the SIXEL raster-graphics format (a pixel-based encoding originally used for terminal graphics) into the FTS image container/format. This conversion decodes SIXEL's terminal-oriented color and raster data and re-encodes it into the FTS format, preserving visual fidelity and metadata where supported.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Not sure whether to save your image as PNG or JPG? This detailed comparison covers compression, transparency, file size, web performance, and real-world use cases so you can pick the right format every time — with conversion links when you need to switch.
Read guide →Learn how to convert HEIC to JPG for maximum compatibility. This guide explains what HEIC is, why iPhones use it, the key differences between HEIC and JPG, and walks through every conversion method including online tools, iPhone settings, Windows, and Mac.
Read guide →Drag your .SIXEL file from your computer or use the browse function.
Confirm .fts as the selected destination format.
Click "Convert" and download your converted .FTS file once ready.
SIXEL files typically use the MIME type image/sixel and are common in terminal-based image transmissions. FTS files often use MIME type image/fts and are favored in scientific and medical imaging contexts. Codec support varies but both formats require specialized decoders for accurate rendering.
The FTS (.FTS) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like SIXEL.
While specific technical details aren't available here, FTS files generally serve the purpose of storing image effectively within their domain.
Easily convert your SIXEL files to FTS format using our online converter. Designed for speed and reliability, this tool ensures your image conversions maintain quality and compatibility across devices.
SIXEL is an older bitmap graphics format primarily used in terminal graphics, while FTS is a more modern file type optimized for advanced image processing. SIXEL files tend to be simpler and less widely supported compared to the versatile and efficient FTS format.
Keep individual SIXEL files under 50–200 MB for fastest, most reliable browser-based conversions; very large terminal captures can slow or fail conversion tools.
To preserve color fidelity, convert from a SIXEL file that includes a full palette or true-color extension; request lossless FTS output if available.
For large sets, use batch conversion tools or CLI utilities that accept multiple SIXEL inputs to FTS to preserve file naming and metadata.
Be aware SIXEL is optimized for terminal raster output and may lack EXIF-style metadata; any format-specific metadata may not transfer to FTS.
The converter made my workflow so much faster.
Mark D.
Developer
High-quality results with zero hassle.
Anna S.
Graphic Designer
Reliable and easy to use for all my SIXEL conversions.
Leo R.
IT Specialist
Start your free SIXEL to FTS conversion now.
Drag your file here to to upload.
Up to 250MB
Some SIXEL variants use terminal-specific control sequences; sanitize or normalize SIXEL input first to avoid artifacts in the FTS result.