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RLE to FTS — Format Comparison & Online Converter

Fast, instant RLE to FTS conversion. No signup required. Just drop your .rle file and get .fts in seconds.

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About RLE to FTS Conversion

RLE and FTS are both image formats, but they differ in important ways. RLE is a widely used file format. FTS is a widely used file format.

When you convert RLE to FTS, the goal is to convert between formats quickly. Converting RLE to FTS maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.

Your RLE file is decoded and re-encoded as FTS. The conversion involves 4 steps: (1) your rle file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in fts format, (4) the converted file is ready for download.

CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.

This conversion is ideal when you When you need a FTS file. For the opposite direction, CocoConvert also supports FTS to RLE conversion.

How to Convert RLE to FTS

  1. 1

    Upload .rle file

    Select your RLE file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.

  2. 2

    Choose .fts

    Set FTS as the output format. The converter uses optimal settings based on the RLE→FTS conversion profile.

  3. 3

    Convert

    The server-side engine decodes your RLE file and re-encodes it as FTS. Processing time depends on file size and complexity.

  4. 4

    Download result

    Grab your converted .fts file. Multiple output files can be downloaded together.

What Happens When You Convert RLE to FTS

Your RLE file is decoded and re-encoded as FTS.

1

Your RLE file is uploaded and validated

2

The file is decoded (parsed into its raw data)

3

The data is re-encoded in FTS format

4

The converted file is ready for download

Format Comparison

.rle

RLE

.rle file

Extension.rle
MIME Typeimage/x-rle
CategoryImage
.fts

FTS

.fts file

Extension.fts
MIME Typeimage/fits
CategoryImage

Should You Convert RLE to FTS?

When to Convert

  • When you need a FTS file

Frequently Asked Questions

What is the difference between RLE and FTS?

RLE is a widely used file format. FTS is a widely used file format.

Does RLE to FTS conversion affect quality?

Converting RLE to FTS maintains high quality with CocoConvert's optimised encoder settings.

Which format has better compression, RLE or FTS?

RLE is a common image format. FTS is widely supported. The better choice depends on whether you prioritize file size or quality.

How long does RLE to FTS conversion take?

Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.

Is RLE or FTS better for long-term storage?

Both formats use lossy compression, so consider keeping your original source file for long-term storage.

Powered by — installed on our conversion workers
ImageMagick 7.1 (locked policy.xml)libheif 1.xlibjxl-tools 0.11.xLibRaw / dcraw_emu 0.21.xSharp 0.34.x (Node)

Versions are pinned in our worker Dockerfile and re-built via CI on every change.