SSA to SCC Converter
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100% local processing in your browser. No upload. No waiting. No limits.
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Supports .ssa files up to any size
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Why Choose AllSubConverter?
Your Privacy Matters
Everything runs in your browser. Your files are never uploaded.
Lightning Fast
Optimized processing engine converts files in seconds.
Truly Unlimited
No file size limits. No daily limits. Completely free.
Works Everywhere
Works on Windows, Mac, Linux, iOS, Android - any modern browser.
Free Online SSA to SCC Converter
Our SSA to SCC converter reads SubStation Alpha input and produces Scenarist Closed Captioning output entirely in your browser. Source SSA timing (H:MM:SS.cc centiseconds) is converted to SCC timing (SMPTE HH:MM:SS:FF at 29.97fps). Styling and markup that the target format cannot represent are normalized or stripped, leaving valid, ready-to-use output. The conversion runs client-side, so your subtitle files are never uploaded to a server.
Input Format
SSASSA (SubStation Alpha v4) is the predecessor to ASS and shares the same section-based structure: [Script Info], [V4 Styles], and [Events] with Dialogue lines. SSA supports fonts, colors, and basic positioning but predates some ASS additions such as blur. Because SSA and ASS use the same Dialogue layout, they are parsed identically.
Output Format
SCCSCC (Scenarist Closed Captioning) is the industry-standard format for delivering CEA-608 (Line 21) closed captions to North American broadcast television and streaming services. SCC encodes caption text as hexadecimal byte pairs paired with SMPTE timecodes at 29.97 fps and begins with a Scenarist_SCC V1.0 header.
Features
Why Convert?
Format Differences
Common Use Cases
Broadcast Caption Delivery
Produce SCC files for delivery to television networks, cable operators, and playout systems requiring CEA-608.
Streaming Compliance
Generate SCC to meet Netflix, Amazon Prime, or Hulu caption delivery specifications.
FCC Compliance
Deliver CEA-608 compliant SCC files to satisfy FCC closed-captioning requirements.
Related Formats
SRT (SubRip)
The universal plain-text alternative: convert to SRT for maximum device compatibility.
VTT (WebVTT)
The web alternative: convert to VTT if your target is HTML5 video or YouTube.
STL (Spruce Subtitle)
The DVD/broadcast alternative: convert to STL for Spruce or DVD authoring workflows.
Frequently Asked Questions
It reads a SubStation Alpha file, parses each cue's timing and text, normalizes the structure for Scenarist Closed Captioning, and writes a valid .scc file. Source SSA timing (H:MM:SS.cc centiseconds) is converted to SCC timing (SMPTE HH:MM:SS:FF at 29.97fps).
Absolutely. Every conversion runs client-side in your browser. No subtitle data, file contents, or metadata is ever transmitted to a server.
SSA and SCC both support styling, but their styling models differ. Styling that cannot be mapped is normalized or dropped, while dialogue text and timing are always preserved.
Yes, completely free with no sign-up, no watermarks, and no file size limits. All processing happens in your browser, so your files are never uploaded to a server.
Source SSA timing (H:MM:SS.cc centiseconds) is converted to SCC timing (SMPTE HH:MM:SS:FF at 29.97fps).
Yes. The converter is fully responsive and works in any modern mobile browser on iOS and Android.