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SSA to SRT Converter Online

Convert SSA (SubStation Alpha v4.0) subtitles to SRT in your browser, for free. Dialogue timing becomes standard SRT timestamps; styles, fonts and positioning are stripped.

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SSA SRT

How to convert SSA to SRT

Drop in your .ssa file Or paste the script — conversion runs entirely in your browser.
Dialogue lines are remapped The converter reads the Events Format header (SSA v4 uses Marked, Start, End, Style, Name…), takes the timing and text, strips override tags and turns \N into real line breaks.
Download your .srt Numbered, plain-text cues with accurate timing for any player.

What is an SSA file?

SSA (SubStation Alpha) is the 1990s-era ancestor of the ASS format: a plain-text script with [Script Info], a [V4 Styles] section and an [Events] section of Dialogue: lines whose first field is Marked=0. Timing is written to the centisecond (H:MM:SS.cc), and text carries the same {\…} override tags and \N line breaks its successor uses. Old fansub rips, archived releases and legacy tools still ship it.

[Events]
Format: Marked, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: Marked=0,0:00:01.00,0:00:03.50,Default,NTP,0000,0000,0000,,Hello from the SSA script.
Dialogue: Marked=0,0:00:03.50,0:00:06.00,Default,NTP,0000,0000,0000,,Second line.\NStyles are dropped.

SSA vs ASS vs SRT — what actually changes?

SSA and its successor ASS share the same script structure — the converter reads the Format header, so both dialects work. What changes in the jump to SRT is everything presentational: the styles section, font and color choices, margins and positioning, and every {\…} tag are dropped, because SRT stores plain text and timestamps only. Timing survives intact — just rewritten from centiseconds into SRT's comma-millisecond form.

Converted, but the subtitles still look broken?

Conversion changes the container — it cannot fix overlapping cues, garbled characters or timing drift that was already in the source.

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SSA to SRT FAQ

Does this also work on .ass files?

Yes. ASS (v4.0+) uses the same Events/Format structure with a different style version — the converter reads the Format header either way. For ASS-specific quirks, see the ASS to SRT converter.

Why is my SSA text full of Marked=0?

Marked=0 is the SSA v4.0 marker field at the start of each Dialogue line — legacy syntax. The converter skips it and reads Start/End/Style/text per the Format header.

Are the styles really gone?

Yes — SRT has no styling model. Fonts, colors, margins and screen positions are stripped; dialogue text and timing carry over.

Is it free? Do I need an account?

Free, and no account — conversion runs entirely in your browser. Your file never leaves your machine.