Closed Caption Converter API

From transcription through to delivery. Automate every step of your workflow with direct integrations to industry-leading platforms and services.

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Automate your closed caption workflows

The Closed Caption Converter API eliminates the complexity of handling multiple subtitle formats in your workflow. Whether you're building a media platform, automating broadcast operations, or developing caption tools, our API handles the heavy lifting. Convert between industry-standard formats like SCC, MCC, and EBU-STL, correct timing drift, segment files for delivery, and decode caption data—all through simple REST calls. No need to build and maintain your own conversion libraries or worry about format specifications. Just send us your files and get back exactly what you need, when you need it.

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Closed Caption Converter transformed our video production workflow. We process hundreds of hours of poker content every month, and manually handling captions was becoming a major bottleneck. Iconik automatically sends files to the API for transcription and caption sync, then delivers the completed files right back into our workflow. What used to take our team 3-4 hours of manual work per video now happens automatically in the background.

Colin Huse

Post Facility Manager | PokerGo

Features

Eliminate manual caption work with automated conversion, custom QC validation, alignment, and simple API integration for any workflow.

Convert

Transform caption files seamlessly between over 30+ different formats including broadcast standards like SCC, MCC, EBU-STL, and streaming formats.

Conform

Ripple timecodes, convert frame rates, segment files, fix overlaps, and insert frame gaps to ensure perfect caption timing and formatting.

Automatic QC

Configure custom style guides to automatically detect reading rate errors, character limits, line counts, and content issues before broadcast.

Metadata

Read and modify file metadata including frame rates, author details, and technical specifications to match your workflow requirements precisely.

API & CLI

Automate caption workflows with our command-line interface for on-premise deployments and REST API for seamless cloud-based integrations.

Alignment & Sync

Automatically synchronize caption timing with video content through our API, ensuring perfect alignment for professional broadcast and streaming delivery.

API Connectors & Integrations

Seamless Workflow Integration

Connect your entire caption workflow with built-in integrations for media asset management, cloud storage, AI services, and edit tools.

Our API connectors eliminate manual file transfers and streamlines your entire caption pipeline. From transcription through to delivery. Automate every step of your workflow with direct integrations to industry-leading platforms and services.

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Ready to get started?

Sign up for a free 7-day trial of Closed Caption Converter and receive access to 1:1 developer support and our video tutorials.

Start automating your closed caption workflows using Closed Caption Converter. Convert, conform, and deliver closed caption files in over 30 different formats.

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Videos & Tutorials

We release new videos every month highlighting new features and workflows.

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User Guide

Our User Guide is a great resource for anyone who needs to quickly search for a solution.

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All Solutions

Every caption workflow is different, so we built three solutions to match your needs: start with our simple web application for fast conversions, scale with our cloud API for automated processing and third-party integrations, or deploy our CLI for on-premise and offline processing.

Web Application

Need to convert a few caption files quickly? Our web application runs entirely in your browser with no downloads or uploads required. Your files stay secure on your device while processing happens locally—just select, convert, and download.

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API

The most advanced closed caption API available, with features beyond conversion. Add transcription, machine translation, forced alignment/sync, and direct delivery to cloud storage and managed platforms such as Iconik.

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CLI

Built for secure, on-premise environments where internet access is restricted. Available for Mac, Windows, and Linux. This single file executable is easy to deploy and manage using custom presets.

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