--- title: Convert MP4 & MP3 to SRT & VTT | Fast, Accurate Subtitles description: Easily convert MP4 and MP3 files to precise SRT or VTT subtitle files. Fast, reliable, and user-friendly. Start your subtitle conversion today! canonical: https://www.smartcat.com/srt-vtt-conversion/ language: en updated: 2026-09-30 --- # Convert MP4 & MP3 to SRT & VTT | Fast, Accurate Subtitles ## Streamline SRT, VTT Conversion and Translation with Smartcat AI Scale global video content with seamless subtitle conversion into 280+ languages using Smartcat Media Translation Agent. - [Book a demo](https://www.smartcat.com/book-a-demo/?main-h-srt-vtt-conversion) - [Start free trial](https://www.smartcat.com/sign-up?main-h-srt-vtt-conversion) ## Fast, Accurate Subtitle Translation Without Extra Spend ### 100x ### processing speed compared to traditional methods ### 1/120th ### of the cost thanks to AI+human workflows ### 90%+ ### accuracy from the start and improves through expert feedback ## How to Use Smartcat AI for SRT + VTT Conversion Smartcat Media Agent is your expert-enabled AI subtitle translator for fast SRT, VTT conversion into 280+ languages. Follow these simple steps to reach new audiences. ### Define project goals Upload your SRT or VTT file for conversion and select your target languages. ![Upload your SRT file](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1733442385341Image_01.webp) ### Let Media Agent translate the file Smartcat's proprietary AI technology processes your file, learning from previous content to maintain quality and consistency. ![Click to automatically translate and generate subtitles using AI](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1733442390335Image_02.webp) ### Edit and refine translations for accuracy Collaborate with [expert reviewers](https://www.smartcat.com/marketplace/) using our live preview and unified platform to refine translations in real time. ![Edit and refine translations](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1733442395631Image_3.webp) ### Download subtitle files and/or videos with burned-in subtitles Download your translated subtitle files or integrate subtitles directly into your video. Supports SRT, VTT, and other formats. ![Download SRT files](https://gqucouwbfxremfdhdosu.supabase.co/storage/v1/object/public/sc-store/1733442400628Image_4.webp) We were able to reduce translation costs by up to 70%, significantly reduce the turnaround time, and keep quality consistent throughout. Josie Millis Customer Marketing, Stanley Black & Decker - [Explore case study →](https://www.smartcat.com/cases/stanley-black-and-decker/) ## Translate SRT Files in Seconds with Media Agent Use Smartcat's AI agents to translate SRT files quickly and accurately. Simply upload your file, tell [Media Agent](https://www.smartcat.com/video-translation/) what you want, and let it generate ready-to-use subtitles. ## Transcribe and Translate SRT Fast Media Agent automatically transcribes and translates SRT files in seconds. With high accuracy from the start, you can rapidly [create multilingual subtitles](https://www.smartcat.com/blog/add-translated-video-subtitles/) and scale your content efficiently. - [Translate subtitles](https://smartcat.com/sign-up/?) ## Human Review with AI Support in One Space With Smartcat's live Translation Editor and live preview, AI agents suggest translations while expert reviewers refine them in real time. Your team's edits continuously train the system for consistent, high-quality subtitles. - [Get Started](https://smartcat.com/sign-up/?) ## Choose SRT Download, SRT-VTT Conversion, or Burned-In Subtitles When your translation is complete, download the SRT or VTT conversion immediately or have subtitles integrated into your video, ready for global audiences. - [Try it now](https://smartcat.com/sign-up/?) ## Enjoy Easy Multimedia Localization for Global Impact ### Scale Content Fast Smartcat's Media Agent transcribes and translates SRT and VTT files in seconds. ### Review in Real Time Review translated subtitles in real time and adjust them using our live preview. ### Manage Projects Easily Keep all your files organized in one secure workspace. Translate SRT or VTT Files Now - [Get started](https://smartcat.com/sign-up/?) ## Frequently Asked Questions ### What is Smartcat? Smartcat is a global enterprise content AI platform that unifies translation, localization, and content creation in one space. We help businesses scale multilingual video, document, and learning content with specialized AI agents, an intuitive collaborative platform, and our [Marketplace of vetted reviewers](https://www.smartcat.com/marketplace/). ### What are AI agents? [AI agents](https://www.smartcat.com/blog/what-are-ai-agents/) are the latest innovation in artificial intelligence systems for workplace productivity. Think of them as task-specific digital coworkers that can autonomously manage complex, multi-step workflows. Leading companies now leverage [agentic AI tools](https://www.smartcat.com/blog/agentic-ai-companies/) to optimize various business processes. By automating repetitive manual tasks, enterprises save time and money, scaling quickly while [enhancing ROI](https://www.smartcat.com/blog/ai-agents-redefining-enterprise-productivity/). Smartcat AI Agents specialize in content localization tasks for enterprises, such as subtitle translation, dubbing, and voiceover. They adapt to your brand and improve with each project, allowing you to engage audiences worldwide. ### What is Smartcat's Media Agent? [Media Agent](https://www.smartcat.com/video-translation/) is an AI agent specialized in video localization. It automates video translation—subtitles, dubbing, and voiceovers—so your content reaches global audiences faster and at lower cost. Use it for [YouTube content](https://www.smartcat.com/blog/translate-video-subtitles/), social media clips, marketing, training videos, and more! ### What is an SRT file? An SRT file is a text document containing the sequence number, time codes, and subtitle text. It is widely used for video subtitles. ### How do you translate an SRT file to another language? Edit the SRT file manually in a text editor or let Media Agent handle the translation for you in Smartcat. ### Can I translate SRT files for free using Smartcat? Yes! Smartcat offers several pricing tiers, including a free plan that lets you translate SRT files into over 280 languages. ### Can I edit a translated SRT file in Smartcat? Yes. Use our intuitive interface to collaborate with expert reviewers and refine translations in real time. ### Can I automatically localize SRT files? Yes. Media Agent automatically localizes your SRT files, adapting content for diverse cultures and markets. ### Does Smartcat support other video file formats? Yes. In addition to SRT files, Smartcat supports VTT and popular video formats like MP4, MPEG, AVI, and MOV. ### What is the difference between SRT and VTT? SRT is the most common subtitle format, containing only text and time codes. VTT (WebVTT) includes extra features like styling, positioning, and metadata for web playback. ### Can I use Smartcat for SRT to VTT Conversion? Absolutely. You can upload your SRT files to Smartcat and download the finished translations as VTT files, or even burn them directly into your video. ### Does Smartcat provide subtitle translation services? Yes. You can connect with expert reviewers via the Smartcat Marketplace and explore [AI dubbing](https://www.smartcat.com/ai-dubbing/) and voiceover options. ### How do you create and use SRT files? Create an SRT file with any text editor or subtitle software by entering sequence numbers, time codes, and subtitle text. Save it with a .srt extension and match it with your video file for playback. ### How do you turn existing video subtitles into an SRT file? Extract subtitles using video editing or extraction software, then save or export them as an SRT file. Some tools may require minor adjustments. ### How does Smartcat ensure quality in SRT translations? Smartcat's expert-enabled AI Agents learn from your team's edits and leverage translation memories and glossaries for high accuracy and consistency.