AI subtitle translation

Translate ASS subtitles without rebuilding every Dialogue cue

Upload an existing Advanced SubStation Alpha file, choose the language you need and continue in Subvideo Studio. The subtitle events are imported into the project so you can translate and review the spoken text.

  • ✓Keep ASS timestamps and cue order
  • ✓Choose the target language before import
  • ✓Review and refine every line in the Studio
Import ASS & continue to translation How it works
Advanced SubStation Alpha · .ass Your file is uploaded to your Subvideo project so it can be parsed, translated and edited.
ASS · Subvideo Studio
EN → DE
Source ASS
Dialogue: 0,0:00:04.50,0:00:07.00,Default,,0,0,0,,Welcome to this tutorial.
Translated ASS
Dialogue: 0,0:00:04.50,0:00:07.00,Default,,0,0,0,,Willkommen zu diesem Tutorial.

Translate the text, not the timeline

An ASS already contains the part that usually takes the most manual work: cue boundaries and timestamps. Importing that structure means you can translate the spoken content while preserving the subtitle sequence.

Timing stays attached

The existing ASS timecodes are imported with each cue instead of being generated again from the video.

Built for review

Open the translated project in the visual Studio to check terminology, line breaks and context before export.

Clean ASS workflow

Start with .ass and finish with a subtitle project that can be edited and exported again as ASS.

From source ASS to translated subtitles

How it works

1

Upload the ASS

Choose your existing .ass file. Subvideo imports its subtitle Dialogue events into the project for translation and review.

2

Choose a target language

Set the language you want to create before the project is imported.

3

Translate in Studio

The project is prepared for the existing translation workflow. Open Translate, review the result and make any wording changes you need.

4

Export the result

Download the translated subtitle version when the wording and timing look right.

Translate your ASS

Select one .ass file and the language you want to create.

or click to choose a file
For an existing ASS, choosing the source language explicitly gives the translator a reliable language direction.
The selected language is saved with the project and used by the translation workflow.

Need to translate video, audio, SRT or VTT instead? Open the full Subtitle Translator

🔒 EU hosting
📝 Dialogue workflow
✍️ Studio review

ASS is more than text and timestamps

ASS can contain Styles, Script Info, layers, positioning, karaoke timing and override tags. The translation workflow focuses on imported subtitle Dialogue text and timing. Keep your original ASS as a reference and review complex styling or effects before publishing the translated export.

Source ASS 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,Welcome back to the channel.
Dialogue: 0,0:00:04.50,0:00:07.00,Default,,0,0,0,,Today we show you how it works.
Translated ASS 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.00,0:00:04.00,Default,,0,0,0,,Willkommen zurück auf dem Kanal.
Dialogue: 0,0:00:04.50,0:00:07.00,Default,,0,0,0,,Heute zeigen wir dir, wie es funktioniert.
Treat complex ASS styling as a separate review step
Do not assume that every original ASS feature is preserved byte-for-byte through a translation workflow. Positioning, inline override tags, karaoke effects, fonts, layers and custom script metadata should be checked after export.

Treat complex ASS styling as a separate review step

Do not assume that every original ASS feature is preserved byte-for-byte through a translation workflow. Positioning, inline override tags, karaoke effects, fonts, layers and custom script metadata should be checked after export.

Dialogue first

The workflow is designed around the actual subtitle text and its cue timing.

Effects need review

Karaoke, animations, positioning and override chains can require manual checking.

Keep the source ASS

Retain the original file when exact typesetting or fansub-style effects matter.

One subtitle file, more audiences

Useful for

YouTube & social video

Translate an existing caption file before uploading language tracks to your publishing platform.

Courses & training

Reuse approved timings while adapting lessons for another language.

Agencies & localization

Keep a predictable ASS structure for review, handoff and client delivery.

Continue your subtitle workflow

Related tools

Open the full Subtitle Translator ASS → SRT SRT → ASS ASS Subtitle Editor

ASS Translator FAQ

Does translating an ASS change its timestamps?

The imported ASS cues keep their timing structure. You can still adjust timings manually in the Studio if needed.

Can I review the translation before downloading it?

Yes. The ASS is imported as a project so you can review and edit subtitle lines before export.

Do I need the original video?

No. If you already have the ASS, you can start from the subtitle file itself.

Can I translate automatic YouTube subtitles?

Yes, once you have them as an ASS file. You can also use Subvideo's YouTube tools to create or retrieve captions first.

Will my original ASS styles, karaoke effects and override tags be preserved exactly?

Do not rely on exact preservation of complex ASS styling in the translation workflow. The imported subtitle text and timing are the main translation basis. If your file uses custom Styles, positioning, layers, karaoke tags or effects, compare the translated export with the original ASS before publishing.

Is ASS Translator the same as Translate Subtitles?

No. ASS Translator is focused specifically on existing .ass files. Translate Subtitles is the broader workflow for video, audio and multiple subtitle formats.

Turn your finished ASS into another language

Keep the subtitle structure you already have and move straight into translation and review.

Translate an ASS now