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 11, or an Apple Silicon Mac with macOS 12 or later
• Captyne installed (plans from $9/month)
• Your video or audio file open in a composition

Captyne can transcribe in the cloud or on your own computer. Cloud transcription (the Managed API on paid plans, or your own OpenAI, Groq or AssemblyAI key) works on any machine. Free offline transcription needs the 3 GB Whisper model and, on Windows, an NVIDIA RTX 20-series / GTX 16-series GPU or newer; on Mac it runs on Apple Silicon.

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 the composition with your speech is the active comp. With Source Type set to Active AE Comp, Captyne uses its audio; you can also choose Manual Media File to transcribe a separate file. Pick a caption preset on the Setup tab now (see Step 4).

Step 2: Transcribe Your Audio

Choose a Provider and click Transcribe. Captyne extracts the audio from your composition, transcribes it with word-level timing and opens the Preview tab.

• Offline / Local — Whisper Large v3.1 on your own machine. Free and private: nothing is uploaded.
• Managed API — Captyne-hosted, no setup, works on any computer; uses your plan’s monthly minutes.
• OpenAI, Groq or AssemblyAI — use your own API key; that service bills you directly.

Your transcript and edits are saved with the project, so you never have to transcribe the same clip twice.

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 Preview tab shows every phrase as a group of word chips. This is where you fix any errors the AI made — proper nouns, technical terms and names are the most common mistakes. You can:

• Double-click a word to fix its spelling
• Delete a word with the red × — its time goes to the neighbouring word
• Merge words that belong together with the ⛓ icon between them
• Click a word to cycle its style: Normal, Emphasis or Style 3
• Split or join phrases and move words between lines

All of this happens before any layers are created in your composition, and every edit is saved automatically.

Step 4: Choose Your Caption Style

Pick a preset on the Setup tab. Captyne comes with a library of bundled presets, and the Marketplace tab has more official and community styles with video previews. A few examples:

• Bold Drop and Vibrant Pop — punchy, high-contrast styles for Shorts and Reels
• Punch Pop and Impact Bounce — energetic pops for hooks and emphasis words
• Azure Sweep — a light sweep that crosses each word
• Editorial Glide, Soft Fade and Terminal Type — calmer styles for long-form and informative content

You can also create custom presets using any combination of After Effects effects, including third-party plugins. Your presets use the same marker-driven timing as the bundled ones. See Tutorial 09.

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 layers Captyne creates give you three levels of control:

• Master null (ACP_MASTER) — move all captions at once
• Phrase nulls (ACP_SET_n_CTRL) — move one caption phrase
• 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?

Language is auto-detected, but you can set it yourself with the Language option on the Setup tab before transcribing. This helps with mixed-language content, clips that start with music, or audio with heavy background noise.

Can I add captions to a composition without audio?

Yes. Open Preview → Transcript & Data and type or paste your text into Caption Text. Captyne times the words automatically, or you can load word timings from a transcript JSON. You get the full preset system and marker timing — you just provide the text yourself.

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.