How it works

Export SRT/VTT subtitle files

Export generated subtitles as SRT or VTT files: choose original, translated or bilingual text, check coverage and cost, then download.

Generate content and check what is complete

1. Open a local file in Local Player, or keep the supported original YouTube, X or Bilibili page open with the extension.
2. Choose an embedded/native text track or audio recognition and select your target language. A local embedded track uses its metadata language; for audio recognition, use automatic detection or select the original language. Click Start translation.
3. Review a spoken section. For full-video output, use the supported full-video preparation control and check the reported completion/remaining windows.
4. Before exporting, inspect coverage and any missing or failed sections. An empty completed speech window and a never-processed window are different.

Download a subtitle file

1. Choose subtitle export, then select SRT or VTT and original, translated or bilingual content.
2. Review the coverage, quoted credits and daily limit information. Confirm a paid quote when required.
3. Download the file and open it in a text editor or a compatible subtitle player. Check the expected language and timestamps before using it elsewhere.

Generated subtitles are reusable for watching, but subtitle export has account-specific payment rules: content already paid for by this account is treated differently from content generated or paid for by another account. The displayed quote is the authority for this download.

A reproducible local input and illustrative subtitle files

This eight-second MP4 contains two self-authored English sentences spoken by a synthetic voice, with no user or platform footage. Download it and choose it in Local Player. Selecting a target language and clicking Start translation submits real processing and requires a signed-in account with available credits.

The accompanying SRT/VTT use two authored cues, Chinese translations and timestamps rendered by the product’s existing subtitle serializer. They illustrate file formats; they are not measured recognition results from this audio or an accuracy or speed benchmark. Actual processing may produce different words, timing and coverage.

1
00:00:01,000 --> 00:00:03,000
你好，这是一个字幕测试。
Hello, this is a subtitle test.

2
00:00:04,000 --> 00:00:07,000
蓝色列车到站了。
The blue train arrives at the station.

• Download the self-authored speech demo MP4
• Download the illustrative bilingual SRT
• Download the illustrative bilingual VTT
• Read the sample notes and reproduction recipe

Before you send the result

• Download the file and open it in a text editor or a compatible subtitle player. Check the expected language and timestamps before using it elsewhere.
• Check that text is visible, languages are correct, and timing is usable. Recognition and translation are not guaranteed accurate.
• Check sections you did not watch: do not infer full coverage from the first visible caption.
• Use only media you are entitled to process and distribute. An export does not grant rights to the original video.

• Local file source selection and playback
• YouTube captions and audio workflow
• X video captions and audio workflow

FAQ

Open Local Player to try a supported file