TTML Generator

Q: What media formats can I upload?

You can upload MP3, WAV, MP4, MOV, WebM, OGG, FLAC, M4A, and most other common audio and video formats.

Q: Does Netflix require TTML?

Netflix accepts TTML (and its derivative IMSC) for subtitle delivery through Netflix Backlot. TTML is one of the preferred formats for professional subtitle submissions to streaming platforms.

Q: What is the difference between TTML and SRT?

SRT is the most universally supported format for general use. TTML is an XML-based format designed for professional broadcast and streaming delivery — it supports richer styling and is required by platforms like Netflix and Amazon. Use TTML when submitting to streaming platforms or professional workflows.

Q: Can I edit the subtitles after generating?

Yes. After generation, open the project in the Karadeo editor to fix words, adjust timing, or add visual elements. You can also export as VTT, LRC, SRT, or ASS from the editor.

Upload audio or video and get a broadcast-ready TTML subtitle file.

Broadcast-Ready TTML Output

Generates standard TTML files with precise line-level timestamps — compatible with Netflix, Amazon, Apple TV, and broadcast workflows.

AI Transcription

No transcript required. AI listens to your audio and transcribes every word automatically.

Sync Your Transcript Text

Paste your transcript or script and sync it to your audio with precise line-level timing.

Works Everywhere

TTML files work with Netflix delivery, Amazon Prime Video, Apple TV, Adobe Premiere Pro, and broadcast tools like EZTitles.

Online TTML Generator

Run entirely in your browser. No software to download or install.

Free to Use

Free to use with watermark. Upgrade to remove watermarks.

How to generate a TTML file

Need help?

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STEP 1

Upload your audio or video

Upload any MP3, WAV, MP4, or other media file. Karadeo extracts the audio automatically.

STEP 2

Auto-extract or paste your text

STEP 3

Download your TTML file

Frequently Asked Questions

What is a TTML file?

TTML (Timed Text Markup Language) is an XML-based subtitle format used in professional broadcast and streaming workflows. It is the required format for platforms like Netflix, Amazon Prime Video, and Apple TV, and is supported by tools like Adobe Premiere Pro and EZTitles.