# Subtitle tools

- Human page: https://happytails.ai/en/subtitle-tools/
- Markdown: https://happytails.ai/en/subtitle-tools.md
- Structured JSON: https://happytails.ai/agents/en/subtitle-tools/index.json
- Visibility: public

## Page guide

Find the tool you need, then open it to get started.

## All subtitle tools

- [Ass to SRT](https://happytails.ai/en/subtitle-tools/ass-to-srt/): Warn about loss of ASS styling/effects and preserve dialogue/timing. ([Markdown](https://happytails.ai/en/subtitle-tools/ass-to-srt.md))

- [Auto subtitles](https://happytails.ai/en/subtitle-tools/auto-subtitles/): Generate draft SRT captions from recorded speech. ([Markdown](https://happytails.ai/en/subtitle-tools/auto-subtitles.md))

- [Clean subtitles](https://happytails.ai/en/subtitle-tools/clean-subtitles/): Select removal of hearing-impaired cues, tags or empty cues. ([Markdown](https://happytails.ai/en/subtitle-tools/clean-subtitles.md))

- [Extract subtitles](https://happytails.ai/en/subtitle-tools/extract-subtitles/): Extract an embedded text subtitle track as SRT. ([Markdown](https://happytails.ai/en/subtitle-tools/extract-subtitles.md))

- [Karaoke subtitles](https://happytails.ai/en/subtitle-tools/karaoke-subtitles/): Create word-timed karaoke subtitles from matching speech and text. ([Markdown](https://happytails.ai/en/subtitle-tools/karaoke-subtitles.md))

- [Merge subtitles](https://happytails.ai/en/subtitle-tools/merge-subtitles/): Merge timelines with offset and overlap handling. ([Markdown](https://happytails.ai/en/subtitle-tools/merge-subtitles.md))

- [Shift subtitles](https://happytails.ai/en/subtitle-tools/shift-subtitles/): Apply positive/negative offset. ([Markdown](https://happytails.ai/en/subtitle-tools/shift-subtitles.md))

- [SRT to ass](https://happytails.ai/en/subtitle-tools/srt-to-ass/): Generate valid ASS with basic style defaults and explicit video dimensions. ([Markdown](https://happytails.ai/en/subtitle-tools/srt-to-ass.md))

- [SRT to VTT](https://happytails.ai/en/subtitle-tools/srt-to-vtt/): Convert timestamp punctuation and cue structure. ([Markdown](https://happytails.ai/en/subtitle-tools/srt-to-vtt.md))

- [Subtitle alignment](https://happytails.ai/en/subtitle-tools/subtitle-alignment/): Align a matching English transcript to recorded speech. ([Markdown](https://happytails.ai/en/subtitle-tools/subtitle-alignment.md))

- [Subtitle editor](https://happytails.ai/en/subtitle-tools/subtitle-editor/): Cue text/timing editing, validation and export without automatic transcription. ([Markdown](https://happytails.ai/en/subtitle-tools/subtitle-editor.md))

- [Subtitle translator](https://happytails.ai/en/subtitle-tools/subtitle-translator/): Translate subtitle text while preserving cue timing. ([Markdown](https://happytails.ai/en/subtitle-tools/subtitle-translator.md))

- [Subtitles to PDF](https://happytails.ai/en/subtitle-tools/subtitles-to-pdf/): Readable transcript with optional timestamps and page layout. ([Markdown](https://happytails.ai/en/subtitle-tools/subtitles-to-pdf.md))

- [Subtitles to text](https://happytails.ai/en/subtitle-tools/subtitles-to-text/): Remove timecodes and optionally repeated captions. ([Markdown](https://happytails.ai/en/subtitle-tools/subtitles-to-text.md))

- [VTT to SRT](https://happytails.ai/en/subtitle-tools/vtt-to-srt/): Warn when VTT styling/position metadata is lost. ([Markdown](https://happytails.ai/en/subtitle-tools/vtt-to-srt.md))

## Work with the words and the timing

A subtitle file combines text with time ranges. Converting SRT to VTT changes its representation; shifting subtitles changes timing; translation changes the language. Generating subtitles from speech adds a transcription step before the captions can be reviewed.

## How to choose your next step

Play the captions with their source video. Check cue order, overlaps, line breaks and whether each caption remains visible long enough to read.

## Common questions about subtitle tools

### Does converting subtitle formats fix synchronization?

No. A format conversion generally retains the source timing. Constant offsets can be adjusted with a shift; drift across a recording may require timing alignment or manual correction.

### Why do translated subtitles need another review?

Translated text may be longer than the original even when its meaning is correct. Review line breaks and reading speed without assuming that the original cue duration suits every language.