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VIDEO SUBTITLES

Translate video subtitles online

Turn video speech into translated subtitles. Edit the text and timing, show two languages, and download MP4, SRT or VTT.

Only audio is sent for recognitionVideo export on your device
Drop your video here MP4, MOV, WebM · up to 2 hours / 2 GB

Video stays on your device. Audio is sent to an external service for recognition; transcript text is sent to an AI service for translation. Privacy policy

The latest subtitle draft is saved on this device for 7 days. Select the same video after refreshing to resume.

EN → ES

Compare original and translated video subtitles

A real interview, with translated subtitles. Switch versions or open the example to edit it.

AI subtitles reviewed for this example. The original voice is preserved.

Source: E-3 Sentry maintenance b-roll and interviews · Sgt. Michael Risinger · Public Domain

How to translate video subtitles

  1. Choose a video up to 2 hours and 2 GB. Confirm the spoken language and select a subtitle language.
  2. Generate the subtitles, review names and timing, and optionally show the original text alongside the translation.
  3. Preview the result, then download a subtitled MP4 or a separate SRT or VTT file.
Choose a video to translate

Translate video speech into 12 subtitle languages

Choose the spoken language or use automatic detection, then choose one subtitle language. To add English subtitles to a Spanish video, select Spanish as the source and English as the target. Repeat with another target to download another language.

  • English
  • Simplified Chinese
  • Spanish
  • Portuguese
  • Japanese
  • Korean
  • French
  • German
  • Italian
  • Hindi
  • Indonesian
  • Vietnamese

Show original and translated subtitles together

Enable “Show original text too” to display the translation above the original. Useful for interviews, lesson clips and language practice. The bilingual setting also applies to SRT and VTT downloads. Review the wording and fit before sharing.

Choose subtitled MP4, SRT or WebVTT

DownloadWhen to use it
MP4Subtitles become part of the picture, with your chosen size, position and background. The original voice stays; captions cannot be turned off. Video is re-encoded to H.264 when supported by the browser.
SRTA separate text file with subtitle times, for editors and platforms that accept SRT. It does not contain the video or the preview styling. Keep it with the original video.
VTTA separate WebVTT subtitle file for compatible web players. It contains the text and timing; the player controls its appearance. Your original video is unchanged.

Check wording, timing and readability

  • Listen to each cue and correct names, numbers and mistranslations. Editing the source clears that cue’s translation; use “Translate changes” again.
  • Adjust cue start and end times, or shift all times if every subtitle is early or late. Times must stay inside the video without overlaps.
  • Split long subtitles at the playhead, shorten the text, or choose a smaller size. Preview both portrait and landscape clips before exporting.

Video subtitle translation limits

Speech recognition can miss names, accents and words under music. Always review the result. Video export supports SDR video up to 1080p when your browser can encode H.264. HDR can use subtitle downloads. Long exports need temporary device storage.

Video subtitle translation FAQ

Can I translate a video that has no subtitles?

Yes, if it contains readable spoken audio. The tool transcribes the speech first and translates the resulting cues. A silent video or text shown only in the picture cannot provide speech subtitles.

Can I upload an existing SRT file or paste a YouTube link?

This tool accepts a video file from your device. It does not import SRT/VTT files or fetch YouTube links. Use a video you are allowed to process; you can download new SRT and VTT files after generation.

Which video formats and file sizes are supported?

Choose MP4, MOV or WebM with audio your browser can decode, up to 2 hours and 2 GB. H.264 video with AAC audio in MP4 is a useful compatibility choice. MP4 export needs supported video decoding and encoding; SRT/VTT remain available for supported audio when video export is unavailable.

What if subtitle generation or video export fails?

Use the reconnect control if the service is unavailable. Completed speech recognition is kept after a translation failure; retry “Translate changes”. For MP4 export, try 720p or download SRT/VTT. Keep the page open while processing. The latest draft is saved locally for 7 days when storage is available; reselect the same video after refreshing to resume.

Does this change the voice?

No. The original audio stays in your video. The translation appears as subtitles.

Can I turn off the subtitles after exporting?

Subtitles in the MP4 are part of the picture. Download SRT or VTT if you want a separate subtitle file.

Can it translate text already on the screen?

This tool transcribes speech. It does not read or erase existing text in the picture.

FIELD GUIDE

How to review translated video subtitles before export

A translated subtitle file is only ready when the wording, timing and export format all fit the video and its playback destination.

Check names, numbers and negation against the original

Play each cue with its source audio. Correct people and place names, dates, amounts and short words such as “not” that can reverse a sentence. Automatic translation is a draft, so keep the original wording visible while reviewing.

Fix timing and reading length

A subtitle should appear with the speech and leave before the next thought begins. Shift a cue when it starts early or late, split a long sentence at a natural pause, and preview the lines over the actual picture before exporting.

Choose MP4, SRT or VTT for playback

MP4 burns the subtitles into the video and viewers cannot turn them off. SRT and VTT remain separate files for compatible players and editors; they do not include the video or the preview styling. Choose based on where the video will be published.

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