AI Subtitle Generator: Add Subtitles to Video Online

The whole flow is a single pass: upload the video, let the AI transcribe it, review the result, and export with subtitles burned in. There is no separate transcription step, no aligning text to audio by hand, and no juggling files between a transcription service and a video editor. The subtitles arrive already timed to the word and already styled, so the review step is usually just scanning for a misheard name rather than rebuilding lines. For a typical one-minute vertical video, going from raw upload to a finished, subtitled MP4 takes about as long as watching the clip twice. Longer videos scale linearly; the AI transcribes faster than real time, and export speed depends mostly on your chosen resolution.

The AI transcribes English, Spanish, Portuguese, French, German, Arabic, Hindi, and more than 90 other languages, and the renderer handles the typography each one needs: right-to-left scripts like Arabic display correctly, Devanagari and other non-Latin scripts get fonts that actually support them, and accented characters never fall back to tofu boxes. Hinglish gets special handling that most subtitle tools skip entirely: spoken Hindi is transliterated into Roman script automatically, which is how Indian creators actually subtitle short-form content. Mixed-language audio is transcribed in the language spoken, sentence by sentence. Each supported language has its own dedicated page covering accuracy notes, recommended fonts, and the subtitle styles that read best in that script.

Because subtitles here are rendered by the same engine that powers the caption styles, you are not limited to white text on a black strip. Karaoke-style word highlighting that follows the speaker, pop-in words with motion, and clean minimal looks for corporate content are all one click away, and every style ships with fonts, colors, and animation timing curated to work together out of the box. That is the core difference from a typical subtitle maker, where the text is an afterthought pasted over the frame. If your brand needs specific colors, fonts, or positioning, override any detail down to the individual word; the curated defaults are the starting point, not the ceiling, and your changes preview live before export.

Exports burn the subtitles into the MP4, so they display identically on TikTok, Instagram, YouTube, LinkedIn, and in any video player, with no separate file to manage and no platform styling overriding yours. Burned-in subtitles are the reliable choice for social video: they survive reposts, downloads, embeds, and messaging apps, and they guarantee that the styling you designed is the styling every viewer sees. Sidecar formats like SRT and VTT still have their place for YouTube long-form, accessibility compliance, and multi-language toggles, where viewers benefit from turning subtitles on and off or switching languages. If you are unsure which approach fits your content, the captions-vs-subtitles guide and the SRT and VTT glossary entries linked below walk through the trade-offs in plain terms.