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Captions for Your Thinkific Courses,
In Every Language.

Fluen captions your lesson videos and translates them into 50+ languages.
On any Thinkific plan, students pick their language from the CC menu.

No credit card required

Thinkific-Ready SRT
50+ Languages
Any Thinkific Plan
Fluen Studio: AI caption and translation editor for online course videos

Thinkific's Captions Speak One Language. Your Students Speak Many.

Thinkific AI captions Fluen + Thinkific
Thinkific plan needed Plus Silver or higher Any plan: SRT upload is on every Thinkific plan
Languages One caption file, in the language spoken Captions in 60 languages, translated into 50+
Editing Fix words; timing can't be changed Words, timing to the millisecond, line length and reading speed
Course terminology No glossary Custom glossary keeps your terms consistent in every language
Many lessons at once Automatic for every video once switched on Up to 50 files per upload; every lesson and language in one ZIP

Thinkific details from Thinkific's help center, November 2026.

How to Add Multilingual Captions to Thinkific

1

Upload your lesson videos to Fluen Studio

Use the same video files you uploaded to Thinkific. Click "Add New" and pick them from your computer, Google Drive or Dropbox. Paid plans take up to 50 files per upload, so a whole course goes in at once.

2

Choose the languages your students need

Set the language spoken in the lessons and every language you want them translated into. Save them as your workspace's Subtitle Defaults and each new lesson is translated the same way.

3

Review the captions and translations

Click "Submit" and the captions are ready in a minute or two. Open each track in the editor to check names and course terms; the issues list takes you straight to any subtitle that is too long or too fast to read.

4

Export the SRT files

Click "Export", keep "Subtitle file" and choose "SubRip (.srt)". Pick one language, or "All languages (ZIP)" to get every language at once. To export several lessons together, select them in your library first. Downloading subtitles is included in every paid plan.

5

Upload them in Thinkific's Asset Library

In your Thinkific Admin Dashboard, go to Products → Asset Library and click the video. Turn on the Captions toggle, drag in the SRT files (one per language, up to 25 at a time) and click "Upload captions". Students switch languages from the CC icon in the player.

Get Started, It's Free

What Course Creators Get From Fluen

Your Terms, Spelled Right

Add your method names, product names and jargon to a glossary once. Fluen uses it in every lesson and every language, so a term students learn in lesson 1 reads the same in lesson 40. How the glossary works →

Translations Students Can Read

Every translation is split again for its own language and rephrased where needed to fit the reading speed, so students aren't left chasing subtitles that flash past.

A Native Speaker's Sign-Off

On the Team plan, send each language to a reviewer with a private link, no account needed. They comment, suggest wording and approve, language by language. See reviews and approvals →

Transcripts and Promo Clips Too

Export lesson transcripts as Word or PDF handouts, or burn styled captions into an MP4 for your course trailer and social clips. See caption styles →

Open Your Course to New Markets

Spanish
French
German
Portuguese
Japanese
Chinese
Korean
Arabic
Italian
Dutch
Russian
Polish
Turkish
Hindi
Swedish

Thinkific plays a caption file per language on the same video, so one course can serve every market without re-recording or duplicating products. Fluen's context-aware translation re-segments every subtitle for the target language, respecting line-length limits and natural reading flow.

Explore Translation Features

SRT Files Ready for Thinkific's Asset Library

Upload
MP4 MOV MKV AVI MP3 WAV
Output
SRT WebVTT Burned-in MP4 Word PDF Plain Text
Start free with 3 files. Plans from $29/mo for 150 minutes.
See all plans

Frequently Asked Questions

How do I add captions to a Thinkific video?

Upload the lesson video to Fluen, review the AI captions in the editor and export them as an SRT file. In your Thinkific Admin Dashboard, go to Products, then Asset Library, and click the video. Turn on the Captions toggle, drag in the SRT file and click "Upload captions". Students turn the captions on with the CC icon in the video player.

Can I add captions in more than one language to a Thinkific course?

Yes. Thinkific accepts one caption file per language on each video, and students choose their language from the CC menu. Thinkific's own AI captions only produce the language spoken in the video, so the other languages need SRT files made elsewhere. Fluen translates your captions into 50+ languages and exports one SRT per language, or all of them in a single ZIP. Learn more about subtitle translation →

Do I need Thinkific Plus?

No. Thinkific's automatic AI captions need a Plus Silver plan or higher, but uploading your own SRT files works on every Thinkific plan. Fluen's subtitles go in through that upload.

I already have Thinkific's auto-captions. Can Fluen translate them?

Yes. Download the SRT from the video in Thinkific's Asset Library, upload the same video to Fluen and, during caption review, replace Fluen's captions with your SRT. Then translate it into the languages you need. Importing your own SRT is included in every paid plan.

Thinkific won't accept my SRT file. What should I check?

Fluen's SRT files already follow Thinkific's format rules: plain text with no styling tags, timecodes that start at zero, and spaces around the arrows. Fluen names each file after the video and its language (for example Lesson 1.es-ES.srt), so if the video title contains spaces and the upload is refused, remove them from the file name. Each file must also be under 5 MB, which covers several hours of subtitles.

Is Fluen a Thinkific app?

No. Fluen isn't affiliated with Thinkific and isn't in the Thinkific App Store. It works alongside Thinkific through standard SRT caption files, which every Thinkific plan accepts, so there is nothing to install on your site.

Is there a free plan?

Yes. The free plan lets you caption and translate 3 files (up to 90 minutes each) and review the results in the editor, no credit card required. Downloading subtitles (including the SRT files for Thinkific), exporting video and importing your own SRT files require a paid plan. See pricing →

50+ Languages Fluen Studio offers transcription and multilingual subtitle translation in over 50 languages
70% Faster Customers say Fluen Studio helps them complete transcription and subtitling in less than half the usual time
4 Minutes On average, it only takes 4 minutes to process a one-hour recording

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