ASS は高度な装飾ができる字幕形式です。位置・色・エフェクトを細かく指定できます。
Typical use: 装飾字幕を SRT に変換して汎用プレイヤーで使います。
About the ASS format
ASS は高度な装飾ができる字幕形式です。文字の位置、色、縁取り、回転、カラオケ的なタイミングまで指定できます。
汎用プレイヤーでは一部が再現されないため、配布用には SRT への変換が無難です。
Strengths
- ✓ 装飾・配置を細かく指定できる
- ✓ 動きのある字幕も作れる
- ✓ 同人字幕の標準
Limitations
- ✗ 対応がまちまち
- ✗ 記述が複雑
- ✗ Verbose text format
- Structure
- Styled cues + script sections
- Types / schema
- Timecodes + style definitions
- Compatibility
- Desktop players, few devices
- Best for
- Styled and fansub subtitles
Convert ASS to…
3 direct directions plus 3 workflows, sorted A–Z; 🔥 marks popular targets.
Cross-engine workflows
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Frequently asked questions
What is a ASS file?
ASS (Advanced SubStation Alpha, with SSA as its ancestor) is the styled subtitle format of fansubbing — fonts, positions, colors and karaoke effects.
How do I convert ASS files online?
Pick a target format from the "Convert ASS to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert ASS files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can ASS convert to?
This page lists all 6 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.