Pro Caption AE: AI Word-Synced Animated Captions for After Effects

Professional animated captions, built in seconds.

Pro Caption AE is an After Effects panel that turns your audio into polished, animated captions. Select a layer, choose a style, and click Build. Your captions are added to your composition as real, editable text layers.

What makes it different

• Word-accurate timing. Each word appears at the exact moment it is spoken, snapped to the true start of the sound rather than approximated.
• Frame-accurate placement. Timing follows your layer's trim, start time and time stretch, so nothing drifts when you edit.
• 66 ready-made styles designed for TikTok/Reels, YouTube, AMV, music and storytelling, including a Kinetic Motion pack.
• 15 motion types, built as native After Effects text animators rather than pre-rendered footage.
• Any installed font. Browse your system fonts with a live preview of each typeface.
• Live preview and Kinetic Inspector. Adjust animation, font, size, words per group, bounce, colors and position, and see changes instantly.
• Fully editable output. Captions are standard After Effects text layers, so everything can be refined after the build.
• Single undo step. One undo removes the entire caption build.
• Custom glossary. Add names, brands and technical terms so they are spelled correctly every time.
• Long-form support. Longer videos are processed automatically.

Built for editors who publish quickly

Skip hours of manual keyframing and deliver captions that look designed by a motion artist.

Requirements

• Adobe After Effects 2024 (v24) or newer
• FFmpeg installed
• A Groq API key (created on Groq's website)
• Internet connection during transcription (audio is sent to a transcription service to generate captions)

Installation

1. Download the .zxp file after purchase.
2. Install it with the free ZXP/UXP Installer and restart After Effects.
3. Open Window > Extensions > Pro Caption AE.
4. Add your Groq API key in Settings.

License

Personal and commercial use permitted, including client work and published content. Resale or redistribution of the extension is not permitted.

Support

For questions or issues, contact customerserviceivxrxfx27@gmail.com

Built by IVX.