> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fabl.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Subtitle Editor

> Create and edit subtitles on a timeline against a video, validate timing and reading speed, and export or attach captions to an asset.

The **subtitle editor** is a timeline-based tool for creating and editing captions against a video. It pairs a video player with a subtitle list and a visual timeline so you can sync captions precisely.

## Load a video

Open the editor and load a video — either from a local file or from your [media assets](/media/media-assets). When you open the editor from a video asset that already has captions, those captions load automatically.

## Create and edit captions

* **Add** a caption at the current playback position
* Edit each caption's **start time**, **end time**, and **text** directly in the list
* On the **timeline**, drag a caption's edges to change its in and out times, or drag its body to move it while keeping its duration
* **Delete** captions you don't need
* Seek the video to a caption and play from it to check the sync

## Validation

The editor flags common subtitling problems as you work, including minimum duration, line length and line count, reading speed, overlaps with neighboring captions, and gaps that are too small.

## Import and export

You can import existing subtitles and export your work in standard caption formats, including SubRip (SRT) and WebVTT. When you opened the editor from a media asset, you can also save the captions back to that asset so they travel with the video.