Upload your video file, generate the source language subtitles, and translate them to any language with incredible accuracy.
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50+ languages supported · View all languages
Generic tools translate text and dump it back. Fluen re-segments every translated cue to respect character-per-line limits, line-break conventions, and reading speed, just like a professional subtitler would.
Drop in your video or import an SRT. Fluen detects the source language and queues translations in one step.
Approve auto-generated captions, then translate into all target languages at once with context-aware AI.
Preview synced translations, adjust in the built-in editor, and export as SRT, WebVTT, or burned-in MP4.
| Human Translator | Generic AI | Fluen AI | |
|---|---|---|---|
| Cost | $$$ per minute, per language | Cheap but raw output | Up to 90% less than human translators |
| Turnaround | 2–5 business days | Instant (raw) | Instant (production-ready) |
| Formatting | Manual timing | None | Auto-segmented & timed |
| Multi-language | Per-language cost multiplier | Limited accuracy | 50+ languages included |
| Editing | Email back-and-forth | Copy-paste to editor | Built-in professional editor |
| Subtitle Specs | Follows client brief | No awareness | CPL & lines-per-cue compliance, customizable |
| Quality | Excellent (varies) | Inconsistent | Context-aware, near-human |
Translate a 60-minute video into 5 languages in minutes, at a fraction of what a human translator would charge.
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We orchestrate multiple translation engines and combine them with our proprietary subtitle segmentation technology. Every translated cue is re-segmented to respect character-per-line limits and line-break conventions for each target language. The result: translations that are not just accurate, but production-ready.
Traditional workflows route uncommon language pairs through a pivot language like English: Norwegian to English, then English to Portuguese, losing nuance at each step. Fluen translates directly between any pair. No intermediary, no compounding errors, no meaning lost in transit.
Reach a global audience by translating your subtitles into dozens of languages. Grow your international viewership without hiring translators for every video.
Deliver multi-language subtitle packages in industry-standard formats. Speed up localization timelines from weeks to hours while maintaining broadcast quality.
Make training content accessible to your global workforce. Use the Glossary feature to ensure consistent translation of technical and domain-specific terminology.
Accelerate your subtitle translation pipeline with AI-generated drafts. Translate directly between any language pair without a pivot language, so your linguists review and refine without the quality loss of indirect translation chains.
* Already have your own subtitles? Import SRT files during caption review.
Fluen uses a multi-engine approach combining DeepL, OpenAI, and proprietary subtitle intelligence. Translations are context-aware, meaning the AI considers full paragraphs of source captions, not individual cues, to produce natural phrasing. Our auto-segmentation then re-formats the translated text to respect professional subtitle specs (max characters per line, max lines per cue) for optimal readability on screen. Most users find the output needs little to no editing for standard content.
You can upload video files (MP4, MOV, MKV, AVI, and more). Fluen will generate captions automatically. If you already have your own subtitle file, you can also import SRT files during the caption review step. For export, Fluen supports SRT, WebVTT, burned-in MP4 (with customizable subtitle styling), and plain text transcripts.
Yes. During upload, you can select as many target languages as you need. All translations are processed simultaneously, so translating into 10 languages takes roughly the same time as translating into one. You can also add more languages later at any time.
No. Unlike traditional translation workflows that route uncommon pairs through a pivot language (e.g. Norwegian → English → Portuguese), Fluen translates directly between any supported language pair. This avoids the cumulative loss of nuance that comes with multi-step translation chains, preserving the original meaning more faithfully. This is especially relevant for LSPs and localization teams working across many language combinations.
Fluen includes a Glossary feature that lets you define how specific terms should be translated (or left untranslated). This is especially useful for industry jargon, brand names, and technical vocabulary. The AI respects your glossary entries across all target languages.
Yes. Fluen works with any aspect ratio, including vertical 9:16 videos from TikTok, Instagram Reels, and YouTube Shorts. Captioning, translation, and burned-in export all work the same way regardless of orientation.
Yes. You can sign up and try the full platform for free, no credit card required. This lets you experience our AI-powered translation, editing, and review tools. Paid plans start at very affordable rates for when you're ready to export. See pricing →
Absolutely. With a Team plan, you can invite collaborators to shared workspaces. Team members can upload files, review translations, make edits, and export, all within the same workspace. Permissions and roles keep everything organized.
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