YAML vs YML — Comparison & Free Converter
Fast, instant YAML to YML conversion. No signup required. Just drop your .yaml file and get .yml in seconds.
Batch Settings
YAMLファイルを.yml拡張子に変換したい場面は、意外と日常的に訪れます。設定ファイルの命名規則を統一したいとき、チームのコーディング規約に合わせるとき、あるいはツールが特定の拡張子しか受け付けないとき——中身は同じでも、名前ひとつで作業が止まることがあります。このツールは、そうした小さな手間をその場で解消するために作りました。変換の仕組みは単純ですが、細かいところで詰まる時間は馬鹿になりません。ファイルをアップロードするだけで、すぐにダウンロードできます。
- 同人・商業問わずゲーム開発時のUnity／Godotプロジェクト設定の統一
- 社内システムのCI/CDパイプライン（GitHub Actions等）における命名規則への対応
- アニメ・マンガ制作スタジオでのローカライズ管理ファイルの整理
日本国内では、DockerやAnsibleの公式ドキュメントが長らく`.yml`表記を採用していた経緯から、現場によって混在が起きやすい状況が続いています。特に受託開発の現場では、納品規約で拡張子を明示するケースも多いため、変換の需要が根強くあります。
About YAML to YML Conversion
YAML or YML — which format should you use? The answer depends on your needs. Here's a quick breakdown.
YAML is a human-readable data format popular in DevOps, Kubernetes, and configuration files. It has universal platform support. YML is a widely used file format. It has common platform support.
So when should you convert YAML to YML? This conversion is ideal when you When you need a YML file. This conversion helps you convert between formats quickly.
Converting YAML to YML maintains high quality with CocoConvert's optimised encoder settings.
If you've decided YML is the right choice, CocoConvert makes the conversion effortless. Upload your .yaml file, pick YML, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert YAML to YML
- 1
Choose your YAML file
Upload your .yaml file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to YML
Select .yml from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large code / data files.
- 4
Get your YML file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert YAML to YML
Your YAML file is decoded and re-encoded as YML.
Your YAML file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in YML format
The converted file is ready for download
Format Comparison
YAML
.yaml file
| Extension | .yaml |
| MIME Type | application/x-yaml |
| Category | Code / Data |
YML
.yml file
| Extension | .yml |
| MIME Type | application/x-yaml |
| Category | Code / Data |
Should You Convert YAML to YML?
When to Convert
- ✓When you need a YML file
Frequently Asked Questions
Should I use YAML or YML?
It depends on your goal. YAML preserves full quality. YML preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is YML higher quality than YAML?
Not necessarily. Converting YAML to YML maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert YAML to YML on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for YAML to YML?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for YAML to YML?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.