EasySub's online subtitle translator creates timed source subtitles from video or audio and translates existing subtitle files into the language you choose. Upload a media or SRT file, or paste any YouTube/video URL, turn on Add translation, review the source and translated tracks separately, and download SRT, VTT, ASS, or TXT.
If you only need captions in the same language as the speech, use the automatic subtitle generator. If you need a translated version, select both the spoken language and the target language before generation.
How to translate subtitles from a video
- Add your source. Open the EasySub workspace, upload a video, audio, or SRT file, or paste any YouTube/video URL into the input field.
- Select the source language. For media, choose the language actually spoken in Add subtitles. For an existing SRT, confirm that its source language, text, and timestamps are correct before translation.
- Turn on translation. Enable Add translation, choose the translation model and target language, and then start subtitle generation.
- Review both tracks. First compare the source subtitles with the audio. Then check the translated lines for meaning, names, numbers, tone, line length, and context.
- Download the result you need. Choose Bilingual, Source only, or Translated only, and export a subtitle file or a video with visible subtitles.
Translate subtitles for YouTube, movies, courses, and interviews
YouTube and social video
Paste the video URL, generate the source and translated tracks, and review channel names, product names, figures, hooks, and line breaks before publishing. Always make sure you have permission to process and reuse the content.
Movies and dialogue
Check speaker relationships, forms of address, jokes, sarcasm, and negative statements. A literal sentence may be grammatically correct but still miss the meaning or tone of the scene.
Courses and tutorials
Keep terminology, feature names, measurement units, and instructions consistent. When a translated sentence is longer than the source, split or shorten it so viewers have enough time to read.
Interviews and video podcasts
Verify people, job titles, brands, dates, and numbers against the recording. Listen again where speakers overlap instead of relying only on automatic transcription or translation.
Source, translated, and bilingual subtitles
Source subtitles
This track transcribes the speech in its original language. Correct misheard words here before judging the translation, because a source error can carry into the target language.
Translated subtitles
This track expresses the source text in your target language. Review it separately: a fluent translation can still contain a wrong name, number, technical term, or meaning.
Bilingual subtitles
This option includes both languages in the result. It is useful for language learning and multilingual audiences, but the extra text may require shorter lines so it does not cover important visuals.
Subtitle translation across more than 150 languages
EasySub supports more than 150 languages for its subtitle workflow. The same process applies whether you translate English subtitles into Spanish, Chinese subtitles into English, Japanese subtitles into French, or another available language pair: select the actual spoken language as the source and your audience's language as the target.
Review requirements vary by language pair. Pay special attention to names, honorifics, omitted subjects, gender, plural forms, punctuation, numbers, units, and text direction. If you edit a source line after the translation has already been generated, review the corresponding translated line again instead of assuming it has automatically adopted the new meaning.
Subtitle accuracy and free monthly processing
For clear recordings, EasySub's automatic source subtitle generation can reach over 90% accuracy. Results vary with background noise, overlapping speech, accents, recording quality, names, and specialist terminology, so the source track and translated track should still be reviewed before publication.
Free accounts receive a fixed 30 minutes of processing each month. Check the workspace for your remaining time and current account options before starting a long video; the free allowance is not described as unlimited.
Which subtitle format should you download?
| Format | What it contains | Common use |
|---|---|---|
| SRT | Subtitle text and timestamps | YouTube, media players, and many video editors. |
| VTT | WebVTT text and timestamps | Web players, online courses, and platforms that request VTT. |
| ASS | Text, timestamps, and subtitle styling data | Players or editing workflows that support ASS formatting. |
| TXT | Readable source or translated text without subtitle timestamps | Reading, editing, notes, or reusing the transcript; it is not a synchronized subtitle file. |
| Video with subtitles | Subtitles displayed directly on the video | Sharing a result where viewers should not need to enable a separate subtitle track. |
For a translated project, Download subtitles provides Bilingual, Source only, and Translated only choices. Open the downloaded file in the destination player or platform to check character encoding, line breaks, track choice, and timing before delivery.
Translate an existing SRT file while preserving timestamps
Upload your SRT subtitle file, choose the target language, and translate the text while keeping its timing structure. Review names, terminology, line breaks, reading speed, and character encoding, then export the translated track or a bilingual subtitle result.
If your main goal is to edit text, timestamps, or line breaks before or after translation, use the subtitle editor. For a broader video translation workflow, see the video translator; for audio-only input, use the audio translator. If you need to retrieve subtitles from an eligible online video, see the subtitle downloader.
Quality checklist before exporting translated subtitles
Verify the source
Listen again to names, numbers, negatives, conditions, acronyms, and technical terms. Correcting the source track first gives the translation a more reliable foundation.
Read for meaning
Check whether each line communicates the intended idea and tone, not just the same words. Review ambiguous pronouns and sentences that depend on an earlier scene.
Check reading speed
Shorten or split lines when the translation expands. Make sure the subtitle remains visible long enough to read and does not obscure essential on-screen text.
Test the delivery file
Confirm the target language, file name, format, single- or dual-language option, character display, and playback behavior on the final destination.
Start translating video subtitles
Add a video or audio file, enable translation, review both tracks, and download the right subtitle format.
Open the EasySub workspace →
