SIXEL to MNG — Format Comparison & Online Converter
Fast, instant SIXEL to MNG conversion. No signup required. Just drop your .sixel file and get .mng in seconds.
Batch Settings
古き良きSIXEL形式の画像を、現代的なMNG形式へ変換しませんか？SIXELはかつてPC通信などで親しまれましたが、今では表示環境が限られます。一方、MNGは複数の画像を効率的に扱え、透過やアニメーションにも対応。この変換ツールを使えば、大切なSIXEL画像を色鮮やかなMNGへと生まれ変わらせ、より多くの環境で活用できるようになります。特に、動きのある表現や、背景を透過させたいデザインなどにはMNGが最適です。煩わしい設定は一切不要。ファイルをアップロードするだけで、あっという間に変換が完了します。この機会に、眠っているSIXEL画像を蘇らせましょう。
- 電子書籍のコマ割り
- ビジネス資料のアニメーション
- Webサイトのアイコン素材
MNGはGIFよりも高機能でありながら、日本のガラケー時代には一部機種でしか普及しませんでした。しかし現代では、透過や多色表現が求められる場面で再評価されています。
About SIXEL to MNG Conversion
SIXEL and MNG are both image formats, but they differ in important ways. SIXEL is a widely used file format. MNG is a widely used file format.
When you convert SIXEL to MNG, the goal is to convert between formats quickly. Converting SIXEL to MNG maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your SIXEL file is decoded and re-encoded as MNG. The conversion involves 4 steps: (1) your sixel file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in mng 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 MNG file. For the opposite direction, CocoConvert also supports MNG to SIXEL conversion.
How to Convert SIXEL to MNG
- 1
Upload .sixel file
Select your SIXEL file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .mng
Set MNG as the output format. The converter uses optimal settings based on the SIXEL→MNG conversion profile.
- 3
Convert
The server-side engine decodes your SIXEL file and re-encodes it as MNG. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .mng file. Multiple output files can be downloaded together.
What Happens When You Convert SIXEL to MNG
Your SIXEL file is decoded and re-encoded as MNG.
Your SIXEL file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in MNG format
The converted file is ready for download
Format Comparison
SIXEL
.sixel file
| Extension | .sixel |
| MIME Type | image/x-sixel |
| Category | Image |
MNG
.mng file
| Extension | .mng |
| MIME Type | video/x-mng |
| Category | Image |
Should You Convert SIXEL to MNG?
When to Convert
- ✓When you need a MNG file
Frequently Asked Questions
What is the difference between SIXEL and MNG?
SIXEL is a widely used file format. MNG is a widely used file format.
Does SIXEL to MNG conversion affect quality?
Converting SIXEL to MNG maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, SIXEL or MNG?
SIXEL is a common image format. MNG is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does SIXEL to MNG 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 SIXEL or MNG better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.