AI SSA Translator
Free for the first 1,000 credits
AI-Powered SSA Translation
We use the latest large language models — not outdated rule-based engines — to deliver translations that truly understand your content.
State-of-the-Art LLM Models
Powered by GPT-4, DeepSeek, Claude, and other leading models. These LLMs understand grammar, idioms, and domain-specific terminology far beyond traditional machine translation.
Context-Aware Translation
LLMs read entire paragraphs and chapters, not isolated sentences. This means pronouns, references, and tone stay consistent throughout your document.
Multi-Model Architecture
Different models excel at different languages and domains. Our system automatically selects the best model for your content to maximize quality.
Superior to Traditional MT
Large language models produce natural, fluent translations that read like human writing — not the awkward, literal output of legacy translation engines.
How to Translate SSA Files
Upload Your SSA File
Drag and drop your SSA file or click to browse. We support files up to 300MB.
Choose Target Language
Select from 100+ languages. Our AI understands context for natural translations.
Download Translation
Get your translated SSA file in minutes with formatting preserved.
Why Translate SSA with BookTranslator
Legacy Format Support
Full support for the SubStation Alpha format used in older media.
Styles Preserved
Font styles, colors, and positioning are maintained in translation.
Timing Accuracy
All timestamps remain precise for perfect audio-visual sync.
Text Formatting
Override tags and inline formatting are handled correctly.
Why Choose BookTranslator
10x Faster Than Manual Translation
Translate entire documents in minutes, not weeks. Our AI processes thousands of words per second while maintaining context and accuracy.
Pay Only for What You Use
No subscription required. Pay per word count with transparent pricing. Free preview available so you can check quality before paying.
Context-Aware AI Translation
Unlike generic translators, our AI understands document context — technical terms, literary style, and domain-specific vocabulary are translated accurately.
Email Delivery & Easy Access
Translated files are delivered to your email automatically. No account required for basic translations. Download anytime from your history.
See SSA Translation in Action
Compare the original SSA document side-by-side with the translated version. Layout, formatting, and structure are fully preserved.
Original SSA document
Translated SSA — layout preserved
Who Uses SSA Translation
Legacy Media
Translate older subtitle files in SSA format for archived content.
Subtitle Editors
Translate SSA subtitles while maintaining all styling information.
Archival Projects
Preserve and translate historical subtitle files in SSA format.