SRT to ASS Converter

What this tool does

This tool converts SubRip (.srt) or WebVTT subtitles to Advanced SubStation (.ass) with one style that you set: font, size, text color (white or yellow), outline and position. Times are rounded to hundredths of a second, as ASS requires. Files are converted in your browser.

How to convert SRT to ASS

1. Select Choose files and pick one or more .srt or .vtt files, or drag them onto the green area. You can also select Paste text and paste the subtitles.
2. Set the font, size, color, outline and position.
3. Select Convert.
4. Select Download next to a file, or Download all (ZIP) when you converted several files.

Options explained

• Font (default: Arial). The font name as it is installed on the computer that plays the video. Commas are not allowed.
• Font size (default: 56). In pixels for a video 1080 pixels high. The file sets a 1920 × 1080 canvas, and players scale it to your video.
• Text color (default: white). White or yellow text.
• Outline width (default: 2). The black border around the letters, in pixels. 0 turns it off.
• Position (default: bottom center). Bottom center or top center of the picture, 40 pixels from the edge.
• Add UTF-8 BOM (off by default). Turn it on only if an older Windows program shows broken characters.

Example

This SRT file:

1
00:00:01,000 --> 00:00:03,500
<i>Is anyone still on the dock?</i>

2
00:00:04,200 --> 00:00:06,900
Just me.
And the rain.

becomes this ASS file:

[Script Info]
ScriptType: v4.00+
PlayResX: 1920
PlayResY: 1080
WrapStyle: 0
ScaledBorderAndShadow: yes

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Arial,56,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,2,0,2,40,40,40,1

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.00,0:00:03.50,Default,,0,0,0,,{\i1}Is anyone still on the dock?{\i0}
Dialogue: 0,0:00:04.20,0:00:06.90,Default,,0,0,0,,Just me.\NAnd the rain.

Format notes and limits

• ASS stores times in hundredths of a second, so milliseconds are rounded to the nearest hundredth (half up).
• Line breaks become \N. SRT position codes such as {\an8} are kept as they are, because ASS understands them.
• WebVTT files are read too; cue positions and classes are removed, with a warning.
• Up to 50 files at once, 20 MB per file and 200 MB in total.
• Need SRT from ASS? Use ASS to SRT.

Questions