# Subtitle validator

> Find invalid timestamps, overlaps and excessive line lengths.

[Open tool](https://www.toolcabana.com/ca/subtitle-validator) · [Audio video and subtitles](https://www.toolcabana.com/ca/category/audio-video-and-subtitles)

Tool ID: subtitle-validator. Requested language: ca. Description language: en. Complete guide translation: no; untranslated sections use English.

## Supported tasks (en)

Find invalid timestamps, overlaps and excessive line lengths. Report cue quality separately from file-format conversion.

## Steps (en)

1. Paste the source into the input editor, or load the built-in example.
2. Adjust the basic settings, then open Advanced mode for export and fine-tuning options. Custom settings stay active when the panel is closed.
3. Run subtitle validator, review the output, then use the available copy or download controls.

## Settings

- Maximum characters per line (en; key: lineLength; type: number); minimum: 1; maximum: 500
- Minimum cue duration (seconds) (en; key: minDuration; type: number); minimum: 0; maximum: 10

## Limitations (en)

Up to 20 media files, 50 MB each and 100 MB combined; 50 MB output and a 180-second conversion timeout. Subtitle input accepts at most 5,000 blocks. Required codecs and browser memory affect support.

## Example input

```text
1
00:00:01,000 --> 00:00:03,000
Hello, world.

2
00:00:04,000 --> 00:00:06,000
A little easier.
```

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### What does subtitle validator do?

Find invalid timestamps, overlaps and excessive line lengths. Report cue quality separately from file-format conversion.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Up to 20 media files, 50 MB each and 100 MB combined; 50 MB output and a 180-second conversion timeout. Subtitle input accepts at most 5,000 blocks. Required codecs and browser memory affect support.

## Related tools

- [Video crop and rotate editor](https://www.toolcabana.com/ca/video-crop-and-rotate-editor)
- [Video joiner](https://www.toolcabana.com/ca/video-joiner)
- [Video contact sheet maker](https://www.toolcabana.com/ca/video-contact-sheet-maker)
- [Audio joiner](https://www.toolcabana.com/ca/audio-joiner)