Subtitle Generator (SRT and VTT from audio or video)

Make ready-to-use subtitle files from audio and video. You get timed SRT and WebVTT files with readable line lengths, split at natural pauses and sentence ends. Paste direct file links or upload a file. 90+ languages are detected for you, and you can translate the speech into English subtitles. It runs on open-source Whisper with word-level timing, so you need no API key.

Price: US$0.007 per audio minute, plus a US$0.001 run fee. A 10-minute video costs US$0.071.

What people use it for

• Video creators: captions for YouTube, TikTok, Reels and LinkedIn uploads. Captioned videos keep viewers watching with the sound off.
• Course and webinar platforms: WebVTT tracks for HTML5 video players.
• Translation workflows: English subtitles from foreign-language video, or a timed source file for translators.
• Accessibility compliance: captions for training and public-sector video.
• Editors: import SRT straight into Premiere Pro, DaVinci Resolve, Final Cut or CapCut.

Example output

Real output from the sample file (117 seconds of speech, 27 subtitles):

1
00:00:00,000 --> 00:00:02,120
Chajno is small city in Poland.

2
00:00:02,800 --> 00:00:07,560
As of the year 2000, 14,900 people live in
the city.

3
00:00:08,080 --> 00:00:09,900
The city is on the river Scora.

Dataset item (subtitle text shortened):

fileName	durationSec	language	cueCount	srtUrl	vttUrl
Wikipedia_-Chojnów(spoken_by_AI_voice).mp3	117.0	en	27	link to .srt	link to .vtt

{
  "sourceUrl": "https://upload.wikimedia.org/wikipedia/commons/2/2a/Wikipedia_-_Chojn%C3%B3w_%28spoken_by_AI_voice%29.mp3",
  "fileName": "Wikipedia_-_Chojnów_(spoken_by_AI_voice).mp3",
  "durationSec": 117.0,
  "billedMinutes": 2,
  "language": "en",
  "model": "base",
  "cueCount": 27,
  "srt": "1\n00:00:00,000 --> 00:00:02,120\nChajno is small city in Poland.\n\n...",
  "srtUrl": "https://api.apify.com/v2/key-value-stores/.../records/001-Wikipedia_-_Chojnów_(spoken_by_AI_voice).srt",
  "vtt": "WEBVTT\n\n00:00:00.000 --> 00:00:02.120\nChajno is small city in Poland.\n\n...",
  "vttUrl": "https://api.apify.com/v2/key-value-stores/.../records/001-Wikipedia_-_Chojnów_(spoken_by_AI_voice).vtt",
  "createdAt": "2026-10-27T09:00:00+00:00"
}

Each file is also saved in the run's key-value store, ready to download.

Input

Field	What it does	Default
mediaUrls	Direct links to audio or video files, up to 100. 1 GB per file.	1 sample file
uploadedFile	Or upload one file from your computer.	none
formats	srt, vtt, or both.	both
maxCharsPerLine	16 to 80. 42 is the common broadcast guideline. Use about 32 for vertical video.	42
maxLinesPerCue	1 to 3. Use 1 for short-form vertical video.	2
maxCueSeconds	Longest time one subtitle stays on screen, 1 to 15 seconds.	6
model	tiny (fast), base (balanced) or small (accurate).	base
language	auto or a code such as en, es, de.	auto
task	transcribe keeps the spoken language. translate makes English subtitles.	transcribe
skipSilence	Skip silence and music-only parts.	true
maxMinutesPerFile	Longer files are skipped without charge.	180

Pricing

Event	Price
Run fee, once per run (per 2 GB of memory; the default is 2 GB)	US$0.001
Audio minute, fast or balanced model	US$0.007
Audio minute, accurate model	US$0.013

Examples: a 1-minute clip costs US$0.008. A 10-minute video costs US$0.071. A 60-minute talk on the accurate model costs US$0.781. Failed files are not charged.

Limits

• Direct file links only. Links to YouTube, TikTok, Instagram, Facebook, X, Vimeo and similar pages are refused. Only process files you have the right to use.
• 100 files per run, 1 GB and 600 minutes per file.
• No speaker labels, and no styling (colours, positions).

FAQ

Will the timing match my video? Yes. Timing comes from the audio track itself, word by word.

Can I make subtitles in other languages? You get subtitles in the spoken language, or in English with translate. Other target languages are not supported.

Is my file stored? It is processed on the run's temporary disk and deleted. The subtitles are saved in your own Apify storage.

Can an AI agent call it? Yes. Pass file links, get the subtitle text and download links back as JSON.

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