--- title: Video Translate with AI: Subtitles and Voice-Over | Smartcat description: Translate videos with AI into 280+ languages. Get subtitles and an AI voice-over from one upload, check them in a live editor, then export. Try Smartcat free. canonical: https://www.smartcat.com/ai-video-translate/ language: en updated: 2026-10-13 --- # Video Translate with AI: Subtitles and Voice-Over | Smartcat ## AI Video Translate Agent: Localize Videos Fast Get high-quality video translations in minutes with AI dubbing or subtitles using Smartcat Media Agent. - [Book a demo](https://www.smartcat.com/book-a-demo/?f_ivt_l) - [Sign up free](https://smartcat.com/sign-up?f_ivt_l) ## How to Use Our AI Video Translate Tool in 5 Steps AI video translate in minutes with [Smartcat Media Translation Agent](https://www.smartcat.com/video-translation/) and reach global audiences fast. [Expert reviewers](https://www.smartcat.com/marketplace/) are available in-platform for finishing touches and QA if needed. ### Select your video and define your goals Upload your video(s) and choose the correct source language. Then set your target language(s) to get started. ![Choose file and set source language](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1723731544408Step_1.webp) ### Let the AI agent do the work! Media Agent quickly identifies and transcribes your audio, adding time-coded markers for effortless editing later. ![Receive an instant AI transcription](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1723731707832Step_2.webp) ### Apply AI voiceover automatically Add a natural-sounding AI voice in your chosen language. The system syncs voice, subtitles, and video timing seamlessly. ![Automatically add a natural AI voice](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1723731767217Step_3.webp) ### Review and refine your subtitles Collaborate with peers and subject matter experts in real time to adjust subtitles, timings, and dubbing scripts using our live preview editor. ![Edit subtitles with real-time previews](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1723731788076Step_4.webp) ### Download your localized video Save your fully localized video with integrated AI dubbing and embedded subtitles, ready for any platform. ![Export your final translated video](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1723732066168Step_5.webp) ## What You Get When You Translate a Video with AI **Automatic transcription and translation** of speech into 280+ languages. A **subtitle editor** with live preview for timing, line length and wording. **Multi-speaker detection**, so each voice gets its own caption segments. **One workspace** for source videos, translations and final exports. ## Why Teams Translate Video with AI Instead of Agency Workflows ### 92% ### Words accepted without edits In 2026, **92% of words** translated by Smartcat AI for paying customers were accepted without a single human edit. ### 96% ### Lower translation costs Enterprise teams using Smartcat cut translation costs by **96%** compared with traditional agency rates in 2026. ### 280+ ### Languages from one upload Select every target language at once. Subtitles and a voice-over for each one are produced in the **same project**. ### One workflow ### Transcribe, Translate, Subtitle and Dub in One Project Upload a video, set the source language and every target language. Smartcat produces a **transcript, translated subtitles and an AI voice-over** for each. Your glossary and translation memory carry approved terminology into every new video. ![Upload a video and translate it with AI in one workflow](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/17254863036201723732197008Tab_image.webp) - [Translate a video](https://smartcat.com/sign-up?main-cta1-ai-video-translate) ### Live preview ### Check Every Subtitle Against the Picture The **Subtitle Editor** plays the video beside the translated lines, so you can fix timing, line breaks and wording before you export. ![Review translated subtitles next to the video in the Subtitle Editor](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1718697935613tab-placeholder.png) - [Get started](https://smartcat.com/sign-up?main-cta2-ai-video-translate) ### AI dubbing ### Add an AI Voice-Over in the Target Language Choose an AI voice, adjust **pitch and speed**, and apply it to the video. The voice-over is synchronized with the translated subtitles. ![Choose an AI voice and apply it to the translated video](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1718697935613tab-placeholder.png) - [Sign up](https://smartcat.com/sign-up?main-cta3-ai-video-translate) ### Burned-in subs ### Export Videos with Subtitles Burned In Download the finished video with **translated subtitles embedded**, ready to publish on any platform or upload to your LMS. ![Download the translated video with subtitles embedded](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1718697935613tab-placeholder.png) - [Get started](https://smartcat.com/sign-up?main-cta4-ai-video-translate) ### Expert review ### Add a Reviewer When the Stakes Are High Invite colleagues, or hire a professional reviewer from the **Smartcat Marketplace**, for product, legal or regulated content. Plans include unlimited users, so reviewers never wait for a licence. ![Invite colleagues or Marketplace linguists to review the translation](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1718697935613tab-placeholder.png) - [Get started](https://smartcat.com/sign-up?main-cta5-ai-video-translate) ## How Users Rate Smartcat ### 9.6/10 Ease of setup on G2 ### 9.3/10 Ease of use on G2 ### 1,000+ Enterprise brands ## Guides for Translating Video Content ### Add Translated Subtitles to Your Video Read more How to embed translated subtitles in your video editing workflow. ### How to Translate SRT Subtitle Files Learn more Translate SRT files into your target languages while keeping every timestamp intact. ### What Are AI Agents? Read more How AI agents work alongside your team to translate video and other content. See AI Video Translation on Your Own Content - [Book a demo](https://www.smartcat.com/book-a-demo/?from_ai-video-translate) ## Results Customers Have Published ### 4x ### Faster turnaround Smith+Nephew cut turnaround from an average of **10 days** with its previous agency to **two to three days**. - [Read case study](https://www.smartcat.com/cases/smith-nephew/) ### 30% ### More project output Wunderman Thompson Commerce raised project output by **30%** with the same resources. - [Read case study](https://www.smartcat.com/cases/wunderman-thompson/) ### 50% ### Lower outsourcing costs expondo increased productivity by **50%** while reducing outsourcing costs by 50%. - [Read case study](https://www.smartcat.com/cases/expondo/) ## More Tools for Video and Audio Translation Every tool shares the same workspace, glossary and translation memory, in **280+ languages**. ### Video subtitle translator Automatically translate and synchronize subtitles across languages. ### AI video dubbing Create multilingual video content with synchronized AI-generated voiceovers. ### Training video creator Create tailored training videos easily with AI-powered tools. ### AI audio translator Convert video audio into translatable text quickly and accurately. ### Voice over translator Generate natural-sounding voiceovers from translated content. ### AI voice dubbing Deliver consistent multilingual dubbing with advanced AI technology. Translate Your Next Video Today Upload a video and get translated subtitles and an AI voice-over in one project. Try it free with **15,000 Smartwords for 15 days**, no credit card needed. - [Start free trial](https://smartcat.com/sign-up?main-f-ai-video-translate) ## Video, Audio and Subtitle Formats You Can Translate Smartcat handles **80+ file formats**, including these video, audio and subtitle files: ### MP4 Translator ### MP3 Translator ### MOV Translator ### SRT Translator ### VTT Translator ### WAV Translator We also support .ass (Advanced SubStation Alpha) subtitle files, ensuring precise captions for advanced file formats. For details on all supported file types, please refer to [the full list](https://help.smartcat.com/supported-file-formats/). ## Translate Video into Popular Languages Explore popular language pairs for video translation on Smartcat: ### English to Spanish video translator ### English to French video translator ### English to German video translator ### English to Chinese video translator ### English to Japanese video translator ### What is the best AI video translator? The best choice depends on what you publish. Look for **subtitles and voice-over from one upload**, an editor to check lines against the picture, support for every language you need, and a way to add human review. Smartcat fits teams that translate video regularly and want terminology kept consistent through a shared glossary and translation memory. ### Is there a free AI video translator? Smartcat has no free-forever plan, but the trial is free: **15,000 Smartwords over 15 days**, with no credit card. That is enough to translate a short video end to end, including subtitles and an AI voice-over, and judge the output on your own content before you buy. ### How do I translate a video with AI? - Upload the video and choose the source language. - Pick one or more target languages. - Let Smartcat transcribe, translate and time the subtitles. - Add an AI voice-over if you need one. - Review the lines in the Subtitle Editor, then export the video or the subtitle file. ### How accurate is AI video translation? In 2026, **92% of words** translated by Smartcat AI for paying customers were accepted without a single human edit. Accuracy still depends on audio quality, accents and specialist terms. For regulated or brand-critical video, add a **Marketplace reviewer** before you publish. ### Can AI translate a video into several languages at once? Yes. Select every target language when you create the project. Smartcat produces subtitles, and a voice-over if you want one, for **each language in parallel**. Your glossary applies to all of them, so product names and key terms stay identical across versions. ### Is it safe to upload company videos? Smartcat is **SOC 2 Type II** compliant. Files are encrypted in transit and at rest, and role-based access controls who can open each project. On written request, Smartcat deletes or returns your uploaded content within 30 days, so unreleased product or training videos do not stay on the platform longer than you need. ### What are the alternatives to AI video translation? The main alternatives are a **subtitling or dubbing agency**, or freelance translators working from a transcript. Both add hand-offs and take longer per language. Human-only production is still the better fit for lip-synced film dubbing and broadcast work. Smartcat lets you mix both: AI first, then a professional reviewer. ### Can I translate a YouTube video? Yes. Upload your video file to Smartcat and choose the target languages. Then download the video with **burned-in subtitles** or with the AI voice-over, and publish it to your YouTube channel. For channels in several languages, translate every version from one project so titles and terms stay consistent. ### Does it handle videos with more than one speaker? Yes. **Multi-speaker detection** separates voices during transcription, so captions break where speakers change instead of running two people together. Check the speaker turns in the Subtitle Editor for interviews, webinars or panels where people talk over each other, and correct any line that lands on the wrong voice. ### Can I edit the subtitles before exporting? Yes. The **Subtitle Editor** shows each translated line next to the playing video. You can change wording, split or merge lines and adjust timing. Colleagues and outside reviewers can work in the same project at the same time, so feedback lands directly on the line it refers to. ### What is the difference between subtitles, voice-over and dubbing? **Subtitles** show the translation as on-screen text and keep the original audio. A **voice-over** adds a translated narration track. **Dubbing** replaces the original speech with a voice in the target language, timed to the scene. Smartcat produces AI subtitles and AI voices from the same transcript. ### Which video formats can I translate? Common video formats such as **MP4 and MOV**, audio files such as **MP3 and WAV**, and subtitle files such as **SRT, VTT and ASS**. Smartcat supports 80+ file formats in total. The full list is in the Help Center. ### When should I add a human reviewer? Add a reviewer for anything with **legal, medical or safety** content, product claims or a strong brand voice. You can invite your own colleagues, or hire a vetted linguist from the Smartcat Marketplace inside the same project, without a separate vendor contract. ## Frequently Asked Questions