Best Closed Captioning Software

Google Cloud Speech-to-Text is an invaluable tool for closed captioning services, as it allows for the accurate conversion of spoken language into written text in real-time. By processing audio and converting it into captions for video content, it makes media accessible to a wider audience, including those with hearing impairments. The service’s ability to recognize multiple languages and various accents ensures that captions are accurate, even in diverse linguistic contexts. Moreover, it can distinguish between multiple speakers, which enhances the quality of captions for interviews, discussions, and presentations. New customers can use their $300 credits to test this closed captioning functionality, providing an easy way to integrate accessibility features into their video content.

Best-in-Market Speech-to-Text & Voice AI for Enterprises. Speechmatics delivers industry-leading Speech-to-Text and Voice AI for enterprises needing unrivaled accuracy, security, and flexibility. Our enterprise-grade APIs provide real-time and batch transcription with exceptional precision—across the widest range of languages, dialects, and accents. Powered by Foundational Speech Technology, Speechmatics supports mission-critical voice applications in media, contact centers, finance, healthcare, and more. With on-prem, cloud, and hybrid deployment, businesses maintain full control over data security while unlocking voice insights. Trusted by global leaders, Speechmatics is the top choice for best-in-class transcription and voice intelligence. 🔹 Unmatched Accuracy – Superior transcription across languages & accents 🔹 Flexible Deployment – Cloud, on-prem, and hybrid 🔹 Enterprise-Grade Security – Full data control 🔹 Real-Time & Batch Processing – Scalable transcription

EoleCC is a collaborative web-based subtitling solution that combines automated tools and human review for a fast and professional result. How does it work? 🔼 Upload your video or audio (podcast for example) 💬 Automatic transcription and translation by artificial intelligence in 120 languages. There is a large choice of artificial intelligence tools to translate ! There is even a monitoring to see the details of each step of the workflow. 👥 Collaborative editing & validation, with your team (manager, users and reviewer roles) by yourself or by our translators. 🎞 Subtitle embedding: subtitles are automatically embedded in the video, according to the selected graphic charter. You can create your own subtitle style by customizing it ▶ Share the video and subtitle file (.srt): upload, post on Twitter, YouTube or Dropbox. Discover the EoleCC lite version, a 30 min pack at 19€HT (per month without commitment) for a choice of 5 languages and a verification by you.

Clevercast lets you deliver live streams with multiple audio languages and closed captions, using the latest cloud-based technologies. Viewers, anywhere in the world, can watch the stream and select their preferred language in our multilingual video player. Our platform and embeddable player are an all-in solution for multilingual live streaming to an unlimited number of worldwide viewers. Live streams are delivered through the Akamai CDN using adaptive bitrate streaming. This way, speed, reliability and scalability are guaranteed. In addition, conference or meeting participants can receive translations in real time.

Videolinq helps reduce time and cost when creating professional high-quality live broadcasts for online distribution. Services include closed captioning creation, no-code player design, stream monetization, and a workspace for teams to create live streams, engage viewers, and grow audiences on multiple social media platforms.

The combination of integrated AI text-to-speech and our own Natural Captions engine gives you perfectly formatted captions, in much the same way as a skilled human subtitler would – but it takes seconds, not days. Our automated transcription delivers text that’s almost perfect. All that’s left for you to do is finesse it from your browser, using smart notifications and validated workflows to collaborate seamlessly with your team and / or agencies when you need to. Perfect subtitles, faster. Machine translation can translate subtitles in 103 languages, in one simple step. Then assign linguists to finesse the translations, and split up videos for shared workloads. Don’t have your own linguists? We can hook you up with our translation partners. No more manual downloading and uploading of videos and subtitle files. Publish your subtitles from CaptionHub with a single click, using our highly secure video platform integrations.

Txtplay not only makes your video and audio accessible for everyone it also extracts hidden powers in your media: searchable metadata. This means archiving, SEO, compliance become much easier to manage. Upload your media and select your language. Our speech recognition engine will take care of the job and notify you when it's done. You can continue working while our AI is doing the magic. We connect your media to the transcript in our online text editor where you can update, highlight, detect speakers and search through your text, and scroll in your audio or video. We support over 20 formats including: SRT, VTT,.docx. You can fine-tune the export with details like Timecode, Atlas format, speakers, etc. We also have developer-friendly options.

OOONA is a leading provider of professional management software and production tools for media localization. OOONA empowers effortless management of various workflows. This includes translation, scripting, subtitling, captioning, voiceover and dubbing. Users benefit from complete visibility over their localization pipeline, customizable dashboards, and powerful automation tools to enhance efficiency. Hosted on AWS and backed by top security certifications, OOONA supports media localizers of all sizes globally. Spanning over 160 countries, it optimizes productivity and scalability.

Line 21 provides AI-powered live captions and subtitles, ensuring seamless accessibility for live events, streaming platforms, and digital content. Our hybrid approach combines AI automation with human expertise, delivering high-accuracy captions that adapt to industry-specific terminology, accents, and niche references. By leveraging our AI Proofreader, we enhance real-time captions, reducing errors and making live experiences more inclusive and engaging. Our solution is designed for event organizers, broadcasters, and language service providers who need scalable, cost-effective, and high-quality captions. Traditional human captioning is expensive and non-scalable, while ASR solutions often lack accuracy. Line 21 bridges this gap by offering real-time AI-enhanced captions that integrate seamlessly into event tech and streaming workflows.

A full-service video accessibility solution you can trust to deliver on quality, turnaround, and support. Live & post production captioning, 20+ languages, true 99% accuracy. 40+ languages, high quality, multiple service options. High quality, easy publishing, competitively priced. 80% of people are more likely to watch an entire video when captions are available. 60% of those who have hearing loss are either in the workforce or in an educational setting. 80% of people who use captions aren’t Deaf or hard of hearing. We have the only true 99% accuracy in the industry. We provide flexible turnaround options (as fast as 2 hours). You get white glove support and a dedicated account manager. 20+ integrations & custom APIs to automate your captioning workflow. Our sleek account system makes it easy to order, download, and organize files. We have a deadline compliance 99.9% & can process large quantities of files.

The service combines advanced video and audio capabilities with a simple web services interface and pay-as-you-go pricing. With AWS Elemental MediaConvert, you can focus on delivering compelling media experiences without having to worry about the complexity of building and operating your own video processing infrastructure. AWS Elemental MediaConvert lets you use a wide range of internet and professional media formats to produce high-quality video outputs that look great on any device. With support for ultra-high definition resolutions, high dynamic range video, graphic overlays, advanced audio features, content protection, and closed captioning, AWS Elemental MediaConvert offers a full set of tools to deliver high-quality viewing experiences. AWS Elemental MediaConvert does not require any set up, management, or maintenance of underlying infrastructure. Process video files and clips to prepare on-demand content for distribution or archiving.

LEXI AI-Powered Captioning Toolkit utilizes advanced AI technology to provide automatic captioning for both live and recorded content. This tool offers high-quality captions that rival human accuracy at a reduced cost. It includes LEXI Automatic, which delivers live automatic captions, LEXI Recorded for quick and efficient captioning of recorded content, and LEXI Translate, which supports multilingual captioning and translation for global content distribution. Additionally, LEXI offers on-premises solutions for secure, real-time captioning, and LEXI Library for easy archiving, editing, and searching of captions. It’s designed to streamline the process of creating, managing, and distributing captions and subtitles across various platforms and media formats, ensuring accessibility and engagement.

Digital Nirvana’s pioneering and advanced speech-to-text engines enable content creators to generate highly accurate audio and video content transcripts. The powerful Trance UI allows users to easily navigate, edit and export caption files in all industry-recognized formats. Built-in AI along with custom preset capabilities ensure caption conformance with style guidelines from various delivery platforms.Trance is designed to use machine learning capabilities to enhance the process of generating transcripts, closed captions, and subtitling for media content. Further, Trance also boasts an industry-first tool, Natural Language Processing capabilities. Our NLP technology enables transcript splitting based on grammar rules and styles for individual streaming platforms. Auto-generate captions to conform with multiple style guidelines and file types - all in the shortest time frame possible.