SRT は動画字幕の最も一般的な形式です。番号・時間・テキストを並べるだけの単純な構造です。
Typical use: 字幕を VTT に変換して Web プレイヤーで使います。
About the SRT format
SRT は動画字幕の最も一般的な形式です。番号・表示時間・テキストを並べるだけの単純な構造で、どのプレイヤーでも読み込めます。
装飾はできません。Web で配信するなら WebVTT、装飾字幕が必要な動画では ASS が選ばれます。
Strengths
- ✓ 対応プレイヤーが最多
- ✓ テキストなので編集しやすい
- ✓ 文字コードを指定し直しやすい
Limitations
- ✗ 装飾や配置を指定できない
- ✗ フォントや色は持てない
- ✗ Not web-native (browsers want VTT)
- Structure
- Numbered cues + timecodes
- Types / schema
- Timecodes only
- Compatibility
- Nearly every player and platform
- Best for
- Universal subtitle exchange
Convert SRT to…
4 direct directions plus 3 workflows, sorted A–Z; 🔥 marks popular targets.
Cross-engine workflows
Convert other files to SRT…
Frequently asked questions
What is a SRT file?
SRT is the most common subtitle format: numbered caption blocks with start–end timestamps, supported by nearly every video player and editing tool.
How do I convert SRT files online?
Pick a target format from the "Convert SRT 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 SRT 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 SRT convert to?
This page lists all 7 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.