Subtitle Translator

A subtitle translator changes the text in a timed subtitle file from one language to another. Each cue keeps its place on the timeline, so the translated words appear with the same part of the video. You supply an existing subtitle file; this tool does not transcribe audio or generate captions from a video.

Upload your SRT file, choose the source and target languages, then select Translate subtitles. You can leave the source language on Auto-detect if you are unsure. Once translation finishes, compare each cue with the original, make any corrections, and download an SRT file with the target language added to its filename.

Qwen AI translation is free for visitors and does not require an account or a payment card. You can add up to 20 files at a time, with a maximum of 1 MB per file. Human verification, connection limits and shared daily capacity keep the service available; a clear message explains when to retry if capacity runs out.

You can translate SRT, WebVTT, ASS, SSA, SBV and text-based MicroDVD SUB files saved as UTF-8. A SUB file may require the video’s frame rate, because its timing uses frames instead of seconds. Binary VobSub files and ASS vector drawing cues are not supported. Choose the original format when you need to retain its style definitions.

Translation keeps cue timestamps, line breaks and existing formatting tokens in place when you download in the original format. The review panel shows the original and translated text beside the same timestamps. SRT exports preserve timing, but formats such as ASS and VTT contain styling or positioning that SRT cannot represent; use the original-format option to keep those details.

The selector offers more than 100 languages and varieties from Qwen’s published language list, including English, Spanish, French, German, Chinese, Japanese and Arabic. Translation quality varies by language; check the wording before publishing. Your browser language is used as the initial selection where supported, and you can change it before translating. Source-language detection is automatic by default, but you can override it for short captions, names or mixed-language dialogue.

Yes, you can select or drop up to 20 subtitle files into one batch. Each file can be up to 1 MB, and the batch uses one source-language setting and one target language. Completed files remain available if another file fails. Download the finished files together as a ZIP, or review and download a single file separately.

No installation or account is needed to upload, translate, edit or download subtitle files. Open the website in a modern desktop or mobile browser and choose a file from your device. JavaScript is needed to read and process files, while the upload form and instructions remain visible without it. Translation also requires an internet connection.

Yes. The free translator uses Qwen AI through Cloudflare Workers AI. It translates small batches while the browser preserves the subtitle structure. Advanced refinement with more dialogue context is planned; its button currently records interest and shows a coming-soon message. Review names, idioms and context before publishing: automatic checks can catch missing lines, but cannot guarantee every meaning is correct.

Yes, if you already have a supported subtitle file for the video and permission to use it. Upload that file here and download the translated result, then add it through the video platform’s caption tools. This website does not download videos, extract captions from a YouTube link or accept video uploads in the current version.

Yes, every completed cue has an editable translation field next to the original text. Make corrections to wording, punctuation or line breaks, then download the revised file. Translation itself does not change timestamps. If you also need to adjust start and end times, open the downloaded file in the separate subtitle editor. Open the subtitle editor.

Files are first read in your browser and are not saved in our application database. When you translate, subtitle text is sent through our server to Cloudflare Workers AI for processing; the original file and style definitions stay in your tab. Editing and conversion happen locally. Infrastructure providers may process request metadata; the privacy page explains these boundaries. Read the privacy details.