Subtitle Generator

An online tool that generates subtitles from audio or video, suitable for content creators, educators, and studios needing multilingual captions.

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Total Calculations Run

< 15ms

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100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

This tool converts audio or video into subtitle tracks for multiple languages. It orchestrates ASR, timestamp alignment, and formatting into standard outputs (SRT, VTT) for accessibility and SEO benefits. It handles input media, language selection, and per-language exports, enabling batch processing and per-cue metadata when available. Conceptually, the system first transcribes spoken content, then aligns the text with precise timecodes, and finally formats the results into portable caption files. It emphasizes accuracy, efficiency, and compatibility with common video workflows. Benefits include faster captioning, improved accessibility, broader audience reach, and easier compliance with accessibility standards. Core features cover multi-language export, punctuation restoration, line-length controls, and confidence indicators. Use cases span educational videos, marketing content, news segments, and corporate training where multilingual captions accelerate publishing timelines and enhance search visibility.

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How to Use

Provide inputs: upload video/audio or supply a media URL, select source language.
Configure outputs: choose one or more target languages, formats (SRT/VTT), and timing preferences (max chars per line, min display seconds).
Run generation: start processing and monitor progress.
Validate results: review transcripts, timestamps, and cue lengths; adjust settings if needed.
Export: download subtitle files and optional JSON transcript.

Frequently Asked Questions

Find Quick Answers

What formats are supported?

The tool exports standard subtitle formats, primarily SRT and WebVTT (VTT). Both formats conform to common video hosting and player expectations, with per-language tracks maintained separately.

Can it generate subtitles for multiple languages at once?

Yes. You can specify multiple target_languages, and the tool will generate separate subtitle tracks for each language, preserving original timing and alignment per language.

What happens with low-confidence segments?

Low-confidence segments are flagged in the output and may be omitted or exported with a confidence annotation in a separate transcript file. Users can adjust thresholds for future runs.

Is translation included?

No translation is performed. The tool generates captions from the provided source language and outputs subtitle tracks in the selected target languages without automated translation.

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