# Auto Subtitle Generator > An auto subtitle generator uses AI speech recognition to turn the dialogue in a video into timed subtitles without any typing. Kenerate's version detects the spoken language automatically, or lets you pin one of 10, and burns the subtitles into the video as one MP4 at 720p or 1080p. It doesn't export SRT or VTT files. URL: https://kenerateai.com/auto-subtitle-generator Publisher: Kenerate AI (https://kenerateai.com) Last updated: 3 October 2026 ## Key facts - Spoken languages: Auto-detect + 10 - Subtitle type: Burned in (open) - SRT / VTT export: No - Translation: No — dub first - Clip limit: 4 min, 100 MB - Formats in: MP4, MOV, WebM - Auto-detect (Default setting): Any clip up to 4 min → Language picked from the audio. One clear language, everyday accents. - English (US) (Spoken language): Any clip up to 4 min → English subtitles. American and most other English. - English (India) (Spoken language): Any clip up to 4 min → English subtitles. Indian-accented English. - Spanish · French · German · Italian · Portuguese (Spoken language): Any clip up to 4 min → Subtitles in that language. European-language speech; pin it for accents. - Japanese · Chinese (Spoken language): Any clip up to 4 min → Subtitles in that language. Japanese or Chinese speech. - Russian (Spoken language): Any clip up to 4 min → Russian subtitles. Russian speech. - Hindi and other languages (Not in Auto Subtitles): Speech in an unlisted language → Dub into a listed language first. AI dubbing (33 target languages), then subtitle. ## Steps 1. Check the audio — One clear voice at a time and low music give the best transcript. 2. Upload the video — MP4, MOV or WebM, up to 4 minutes and 100 MB; split longer videos into parts. 3. Set the spoken language — Leave Auto-detect, or pin one of the 10 languages the tool lists. 4. Pick style, position and resolution — 10 styles; Top, Middle or Bottom; 720p or 1080p HD. 5. Generate, compare, download — About 1–3 minutes; check Original vs Captioned, then save the MP4. ## In depth ### Open vs closed subtitles Open subtitles are drawn into the video frames and can't be removed; closed subtitles are stored separately and overlaid by the player, so viewers can switch them on or off or choose another language [1]. Kenerate's auto subtitle generator makes open, burned-in subtitles only. ### What's inside an SRT file An SRT file is plain text: a number for each subtitle, a start and end timecode such as 00:02:16,612 --> 00:02:19,376, the line of text, then a blank line [2]. WebVTT, the W3C format used with HTML5 video's track element, grew out of SRT [3]. Both stay separate from the video file. ### When to burn in, and when to use a file Neither is better in general; it depends on where the video goes. - Burn in: TikTok, Reels, Shorts and ads that autoplay on mute. - Burn in: players or apps that ignore subtitle files. - File: YouTube uploads, which accept subtitle files with or without timing [4]. - File: several languages on one video, or subtitles you will keep editing. - File: when viewers must be able to turn subtitles off. ### YouTube's own automatic captions YouTube creates automatic captions with speech recognition, in the video's default language only, and also accepts uploaded subtitle files [4]. For YouTube-only videos those closed captions are often enough. Burn subtitles in when the same clip also goes to Shorts, social feeds or places without a captions button. References: [1] Subtitles — Wikipedia: https://en.wikipedia.org/wiki/Subtitles [2] SubRip (SRT) — Wikipedia: https://en.wikipedia.org/wiki/SubRip [3] WebVTT — Wikipedia: https://en.wikipedia.org/wiki/WebVTT [4] YouTube Help — Add subtitles and captions, checked 3 October 2026: https://support.google.com/youtube/answer/2734796 ## FAQ Q: How does an auto subtitle generator work? A: It runs speech recognition on the video's audio, splits the transcript into short lines with start and end times, and shows them in sync with the voice. Kenerate's version then burns those lines into the frames in your chosen style, so you download one finished MP4 instead of a separate subtitle file. A run takes about 1–3 minutes. Q: Can I burn subtitles into a video? A: Yes — burning subtitles into the video is the only output here. Kenerate's auto subtitle generator draws the subtitles into every frame and returns one MP4 at 720p or 1080p, so they show in any player or app without a separate file. The trade-off: viewers can't turn them off, and the text can't be changed after export. Q: Can I download an SRT or VTT file? A: No. Kenerate burns subtitles into the video and doesn't export SRT, VTT or any other subtitle file. If you need a file, for a YouTube subtitle upload, a website player or a translator, use a tool that exports one: OpusClip lists TXT, SRT and VTT, and VEED lists SRT, VTT and TXT on their own pages, checked 3 October 2026. Q: Which languages does the AI subtitle generator support? A: Auto-detect plus 10 spoken-language options: English (US), English (India), Spanish, French, German, Japanese, Chinese, Italian, Portuguese and Russian. Hindi isn't available yet. Subtitles always come out in the spoken language, because the tool transcribes and doesn't translate. For other languages, dub the video with Kenerate's AI dubbing first, then subtitle the dubbed version. Q: How do I get subtitles in another language? A: Dub first, then subtitle. Kenerate's AI dubbing translates and re-voices a video into one of 33 target languages, keeping each speaker's voice. Run the dubbed video through Auto Subtitles with the new language pinned, and you get subtitles in that language. This works when the dub language is one the subtitle tool lists, such as Spanish, French, German or Japanese. Q: Is the subtitle generator accurate with accents? A: It is most accurate on clear speech in a listed language. For accented English, pin English (US) or English (India) rather than relying on Auto-detect; for other languages, pin the language you hear. Background music, crosstalk and echo cause most errors, and because subtitles can't be edited after generation, cleaning up the audio before uploading matters more here than in editable tools. Q: How long can the video be? A: Up to 4 minutes and 100 MB per video, in MP4, MOV or WebM. For a longer video, cut it into parts under 4 minutes, subtitle each part and join them in your editor. Pricing goes by length tier, up to 1, 2, 3 or 4 minutes, with no subscription required, and new accounts get starter credits to try it. ## Related pages - Add subtitles to video: https://kenerateai.com/add-subtitles-to-video - AI caption generator: https://kenerateai.com/ai-caption-generator - TikTok captions: https://kenerateai.com/tiktok-captions - AI video translator: https://kenerateai.com/ai-video-translator-and-dubbing - Translate audio: https://kenerateai.com/translate-audio ## Sources - Kenerate Auto Subtitles (tool): https://kenerateai.com/app/tool/subtitles - Subtitles — Wikipedia: https://en.wikipedia.org/wiki/Subtitles - SubRip (SRT) — Wikipedia: https://en.wikipedia.org/wiki/SubRip - WebVTT — Wikipedia: https://en.wikipedia.org/wiki/WebVTT - YouTube Help — Add subtitles and captions, checked 3 October 2026: https://support.google.com/youtube/answer/2734796 - OpusClip — AI caption generator, checked 3 October 2026: https://www.opus.pro/tools/ai-caption-generator - VEED — Auto subtitle generator, checked 3 October 2026: https://www.veed.io/tools/auto-subtitle-generator-online