Actually free to start
CaptionX is free to start — not a fake "free trial" with a forced credit card. Sign up, install the plugin, and start generating captions at no cost.
NEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive NowNEWv34.0.0Templated Animations30fps CaptionsMost Popular StylesNEWv34.0.0New Caption StylesFaster ProcessingLive Now
Free to start — no credit card required
Auto Caption Generator in 100+ Languages
CaptionX auto-generates accurate captions inside Adobe Premiere Pro in 100+ languages. Transcribe your audio using AI, place timed captions in your timeline, and export SRT files for YouTube — without uploading your video anywhere.
Free to try
100+ languages supported
Works inside Adobe Premiere Pro
Exports SRT files for YouTube and beyond
Free to try — no credit card required.
How it works
Auto-generate captions in three steps
CaptionX works as an extension panel inside Adobe Premiere Pro. The auto caption generation happens inside your editor — no browser upload, no file import, no workflow interruption.
- 1
Install CaptionX
Create a free account, download the plugin, and open CaptionX in the Adobe Premiere Pro extension panel.
- 2
Select your clip and language
Choose the clip you want captioned, pick your language from 100+ options, and set your preferences.
- 3
Auto-generate captions
CaptionX transcribes your audio using AI and produces accurate, timed captions — placed directly in your project. Export as SRT for YouTube or any other platform.
Why use CaptionX as your auto caption generator
Most auto caption generators are standalone web tools that add steps to an already complex editing workflow. CaptionX removes that friction.
100+ language coverage
Most auto caption generators work well for English and struggle outside of that. CaptionX generates accurate captions in 100+ languages, including Arabic, Hindi, Urdu, Indonesian, Thai, Vietnamese, and many more.
No upload, no context switch
External caption generators require uploading your video, waiting, downloading a file, and importing it back. CaptionX works inside Adobe Premiere Pro — the auto caption generation happens where your edit already lives.
Honest positioning
Free means free — not a trial that requires a card
CaptionX is free to start. No card required to start. If your edit volume grows beyond the free plan, upgrade — but you can use the auto caption generator at no cost from day one.
Free plan includes
- Free to start
- 100+ language transcription
- SRT export for YouTube
- No credit card required
Frequently asked questions
What is an auto caption generator?
An auto caption generator transcribes speech from a video and converts it into timed captions automatically. CaptionX is an auto caption generator that works inside Adobe Premiere Pro in 100+ languages.
Is there a free auto caption generator?
Yes. CaptionX is free to start inside Adobe Premiere Pro — no credit card required.
What languages does the auto caption generator support?
CaptionX auto-generates captions in 100+ languages, including English, Spanish, Portuguese, French, Arabic, Hindi, Urdu, Indonesian, Thai, Vietnamese, Japanese, Korean, and many more.
How does CaptionX auto-generate captions?
CaptionX uses AI speech recognition inside Adobe Premiere Pro. Select your clip, choose your language, and CaptionX produces timed captions automatically — no manual transcription or external upload required.
Does CaptionX work as a captions maker for YouTube?
Yes. CaptionX auto-generates captions inside Premiere Pro and exports them as SRT files ready to upload to YouTube, Vimeo, or any platform that accepts subtitle files.
What is the best free auto caption generator?
For Premiere Pro editors, CaptionX is the best free auto caption generator available — free to start, 100+ languages, works inside the extension panel.
Related caption tools
Compare Caption Tools
See how CaptionX stacks up against other captioning options for Premiere Pro editors.
OpenCaptions in Adobe Premiere Pro
The full guide to adding and styling subtitle tracks inside Premiere Pro.
OpenSubtitle Translator
Translate an SRT or audio into another language and download a translated subtitle file.
OpenSRT to VTT Converter
Convert your exported SRT to WebVTT for HTML5 video and web players.
OpenTikTok Caption Generator
Create punchy, on-screen captions sized and styled for vertical short-form video.
OpenWeb Caption Studio
Upload a clip in the browser, edit captions, and export a burned-in captioned MP4.
OpenAuto-generate captions in 100+ languages
Start free inside Adobe Premiere Pro. No credit card required.