SSA to SCC Subtitle Converter
Fast. Private. Perfect.
100% local processing in your browser. No upload. No waiting.
Drag & drop your SSA file here
or click to browse
Supports .ssa files up to 50 MB
More Subtitle Tools
How It Works
Upload SSA File
Drag & drop or select your .ssa file
Convert Instantly
We process it locally in your browser
Download SCC
Get your .scc file immediately
More Conversions You Might Need
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.
Free & Local
Each file can be up to 50 MB. Batches can contain up to 200 files or 1 GB total.
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 basic 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). SSA override tags are stripped, line breaks become spaces, and unsupported non-ASCII characters are replaced with question marks. 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 for streaming workflows whose caption specifications accept this format.
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, and writes a basic Scenarist Closed Captioning file using pop-on control codes. 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.
Yes. SSA styling and override tags are dropped, line breaks become spaces, and non-ASCII characters that the generator cannot encode are replaced with question marks. Timing is also quantized to the SCC frame grid.
Yes, completely free with no sign-up, no watermarks, and files up to 50 MB each. 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.