Add Subtitles to Video – Speech-to-Text & Multilingual Subtitles

Add Subtitles to Video automatically recognizes and transcribes speech from videos and audio files. Easily edit, review, and translate captions with AI into multiple languages. Customize typography, colors, and layout, then export standalone subtitle files (SRT/TXT/Markdown) or render high-definition subtitled videos directly on your device.

1. Choose Video or Audio Source

Select a video from your Photos, Files app, or Media Library. You can also pick an audio file from Files or your Music library to create videos with custom backgrounds.

Xtools - 1. Choose Video or Audio Source

2. Transcribe Speech into Subtitles

The tool utilizes advanced speech recognition algorithms to extract audio, split timestamps precisely, and generate synchronized SRT subtitles.

Xtools - 2. Transcribe Speech into Subtitles

3. AI Multilingual Translation

Translate transcribed subtitles into Spanish, Japanese, Korean, French, German, Russian, Chinese, and more with one tap to reach global audiences.

Xtools - 3. AI Multilingual Translation

4. Bilingual Captions & Style Customization

Switch between original, translated, or bilingual subtitles with live preview. Adjust font size, color, stroke outline, background box, and alignment.

Xtools - 4. Bilingual Captions & Style Customization

5. Export Subtitle Files

In addition to rendering videos, export your reviewed subtitles as standard SRT (.srt), Markdown (.md), or plain text (.txt) files for backup or external editors.

Xtools - 5. Export Subtitle Files

6. Render and Export Video

Burn subtitles into your high-definition video locally on your device. Once rendered, preview, save to Photos or Files, or share directly to TikTok, YouTube, and Instagram.
Note: Video rendering and local processing run entirely on your device.

Xtools - 6. Render and Export Video

When You Need It

Frequently Asked Questions

Does speech recognition and AI translation require internet?

Video rendering and basic editing operate locally on-device. High-accuracy AI translation and advanced speech recognition utilize secure cloud AI models.

What video and audio formats are supported?

Supports standard iOS video formats (MP4, MOV) and common audio formats (MP3, M4A, WAV) from Photos and Files.

Can I export only the subtitle file without video?

Yes. You can export subtitles as standard .SRT, Markdown (.md), or .TXT files at any time.

Download Xtools on the App Store