How to Add Animated Captions to Your Videos in After Effects

Why Animated Captions Matter More Than Ever

Subtitles are no longer optional. Research consistently shows that 85% of social media video is watched without sound, and videos with captions see up to 40% higher engagement than uncaptioned content. For motion designers and video creators, this creates both a challenge and an opportunity: captions need to exist, but they also need to look good.

The problem with traditional captioning workflows in After Effects is that they are brutally slow. Creating a text layer per word, setting up animation presets, adjusting timing for each caption — it is repetitive, tedious work that can take two to three hours for a single five-minute video. This tutorial shows you a better way.

What You'll Need

• Adobe After Effects CC 2019 or later (up to AE 2026)
• Windows 10 or Windows 11
• Captyne installed (free beta — apply here)
• Your video or audio file open in a composition

Captyne uses about 4 GB of disk space for the Whisper AI model, which downloads automatically on first run. You don't need a GPU — any modern CPU works fine, though a CUDA-compatible NVIDIA GPU will speed up transcription significantly.

Step 1: Open the Captyne Panel

Once Captyne is installed, open After Effects and navigate to Window → Extensions → Captyne. The panel opens as a dockable window inside your workspace — just like any other After Effects panel. You can dock it next to your timeline, effects panel, or wherever you prefer.

Make sure your composition is active and the layer containing your audio or video is selected. Captyne will use the active composition's audio for transcription.

Step 2: Transcribe Your Audio

Click the Transcribe Audio button. Captyne extracts the audio from your composition and runs it through Whisper AI — entirely on your machine. Nothing is uploaded to any server. Your footage and audio stay private.

Transcription speed depends on your hardware:

• CPU only: approximately 30 seconds per minute of audio
• NVIDIA GPU (CUDA): often real-time or faster

Captyne auto-detects the language of your audio, but you can also specify a language manually for better accuracy on accented speech or technical vocabulary.

Step 3: Review and Edit the Transcript

After transcription, the interactive word editor displays every word as a clickable token. This is where you fix any errors the AI made — proper nouns, technical terms, and names are the most common mistakes. You can:

• Click a word to edit its text
• Merge adjacent words that should appear together as a unit
• Set emphasis roles to highlight key words with a different animation
• Adjust line breaks to control how many words appear per caption line

A live preview shows exactly how your captions will look as you make changes — before any layers are created in your composition.

Step 4: Choose Your Caption Style

Captyne comes with six built-in animated caption preset styles, each designed for different content types:

• Neon Glow — pulsing glow effect, great for dark cinematic content
• Light Sweep — a premium CC Light Sweep effect that adapts to each word's width
• Typewriter — monospace font with blinking cursor, clean and minimal
• Drop In — words drop from above and exit downward, high energy
• Glitch — RGB chromatic aberration split, bold and attention-grabbing
• Scale Pop — explosive scale-in, perfect for hooks and emphasis words

You can also create custom presets using any combination of After Effects effects, including third-party plugins. Once saved, your presets work with the same marker-driven timing system as the built-ins.

Step 5: Generate Animated Caption Layers

Click Generate Captions. Captyne builds all the animated text layers in your composition instantly. Each word gets its own layer with properly configured in and out animation, linked to timing markers so you can adjust without touching keyframes.

The layer hierarchy Captyne creates gives you three levels of control:

• Master null — move all captions simultaneously
• Group nulls — control individual caption lines
• Word layers — fine-tune position and timing per word

Step 6: Fine-Tune Timing with Markers

Every word animation is driven by markers on the word layer. To change when a word animates in or out, simply drag the corresponding marker. The animation follows automatically — no keyframe editing, no expression changes, no re-rendering required.

This marker system is what makes Captyne fundamentally different from other approaches. After generating, you can adjust the timing of every single word in a 60-minute video in a fraction of the time it would normally take.

Common Questions

Can I use my own fonts?

Yes. Captyne creates standard After Effects text layers, so you can apply any font installed on your system. The built-in presets use clean sans-serif fonts by default, but you can change the font on any layer or save a custom preset with your preferred typography.

What if the transcription is in the wrong language?

Whisper auto-detects language, but you can manually set the language in Captyne's settings before transcribing. This is especially helpful for mixed-language content or audio with heavy background noise.

Can I add captions to a composition without audio?

Yes. You can skip the transcription step and manually type words into the word editor. You get the full animated preset system and marker timing — you just provide the text manually instead of using AI transcription.

Will this work with my existing AE project structure?

Captyne generates self-contained layers that slot into any composition. It doesn't modify your existing layers or project structure — it only adds new caption layers.