Write Complex After Effects Expressions
10x Faster with AI
Describe what you want in plain English. TC Forge generates clean, bug-free ExtendScript & applies it directly to your selected timeline properties in 1 click.
give me a wiggle
It looks like no property is selected, but since you are working in a composition with 3D layers, I have provided the standard wiggle expression below. Please select the Position or Rotation property before applying.
const freq = 1; const amp = 50; wiggle(freq, amp)
Supercharge Your Animation Code
No more scrolling through dead forum threads for expression math. Get instantaneous, tailor-made code right inside AE.
AI Expression Generator
Powered by Google Gemini AI (gemini-3.1-flash-lite). Translates natural prompt descriptions into bug-free ExtendScript code.
FREE & PRO1-Click AE Timeline Apply
Select any property keyframe (Position, Scale, Rotation, Path) and click + ADD EXPRESSION to inject code directly without copy-pasting.
PRO UNLOCKEDExpression Auto-Fixer
If After Effects throws an expression error, TC Forge automatically diagnoses timeline syntax issues & generates a 1-click repaired version.
PRO UNLOCKEDAuto Slider Controller
Automatically instantiates & links custom Slider Control effect sliders on your active layer for live parameter tweaking in AE.
PRO UNLOCKEDBring Your Own API Key
Connect directly to your personal Google AI Studio account. Type any model manually (gemini-3.1-flash-lite) for maximum speed.
FREE & PROCross-Platform AE Extension
Lightweight extension running natively on Windows & macOS (Apple Silicon native). Works on After Effects CC 2019 through 2026+.
FREE & PROCompare Free vs Pro Tier
Choose the tier that fits your motion workflow.
| Feature | Free Tier | Pro Tier ⚡ |
|---|---|---|
| AI Expression Generation & Chat | ✅ Unlimited | ✅ Unlimited |
| Preset Expression Library | ✅ Included | ✅ Included |
| Manual Code Copy to Clipboard | ✅ Yes | ✅ Yes |
| 1-Click Apply directly to AE Property | 🔒 Locked | ✅ UNLOCKED |
| Expression Error Auto-Fixer | 🔒 Locked | ✅ UNLOCKED |
| Auto Slider Controller Injection | 🔒 Locked | ✅ UNLOCKED |
| Device Authorization | Unregistered | ✅ Up to 2 Devices |
| License Verification | Not required | ✅ 6-Digit Email OTP |
| Get Extension | Download Free | Get Pro v2.1 |
How to Setup TC Forge in 3 Easy Steps
Get up and running in under 2 minutes with free Google AI Studio integration.
Get Free Google API Key
- Visit aistudio.google.com
- Sign in with your Google account
- Click "Get API Key"
- Click "Create API Key" & copy it
Configure TC Forge Panel
- Open AE -> Window > Extensions > TC Forge
- Click the ☰ Menu / ⚙️ Settings
- Paste your API key into the "Google Gemini API Key" field
- Click Save Settings
Type Model Name Manually
In TC Forge Settings, type your desired model string manually into the Model field (e.g., gemini-3.1-flash-lite):
- ⚡ Sub-second response time (< 1s)
- 🎯 High ExtendScript coding accuracy
- 💰 Maximum free daily request volume
Unlock Pro in 30 Seconds via Email OTP
No complicated long serial keys! Purchase with your Gmail address, request a 6-digit OTP code inside TC Forge Settings in After Effects, and enter the code to unlock Pro features instantly across 2 devices.
The TC Forge Roadmap
We're continuously enhancing TC Forge with powerful AI animation tools.
Gemini AI Engine & Core Panel
Launch release featuring Google Gemini AI integration, ExtendScript code generator, preset library & setting configuration.
1-Click Timeline Apply & Auto Sliders
Direct injection into selected property keyframes with automatic Slider Control effect creation.
Expression Auto-Fixer & Manual Model Input
Current release with automated ExtendScript error diagnosis, instant code repair, and custom model manual entry.
Multi-Layer Batch Expressing
Apply contextual AI expressions across multiple selected layers simultaneously with custom stagger logic.
Rs. 1,350
Fetching live USD value...
Lifetime Access / One-Time Payment
- Unlimited Gemini AI Expression Generator
- 1-Click Apply directly to AE Property
- Automated Expression Error Auto-Fixer
- Auto Slider Controller Effect Ingestion
- 50+ Preset Expression Library
- 2 Computer Authorization via Email OTP
The Creator Dream Fund
I built TC Forge to eliminate tedious ExtendScript coding. Purchasing this tool will fund my dream of replacing my old workstation gear with a new sportbike.
Frequently Asked Questions
Which versions of After Effects are supported? +
TC Forge Pro v2.1 supports Adobe After Effects CC 2019 (v16.0) through After Effects 2026+ on both macOS and Windows (including native Apple Silicon support).
Do I need a paid Google API key? +
No! Google AI Studio offers a generous free tier that gives you plenty of daily requests for personal motion design and client workflows without any fees.
How do I set the AI Model in TC Forge? +
In TC Forge Settings, type your desired model name manually into the Model field (e.g. gemini-3.1-flash-lite or gemini-2.5-flash).
How many devices can I use with 1 Pro license? +
Each TC Forge Pro license allows simultaneous activation on up to 2 computers (e.g., your primary studio workstation & laptop).
Is this a monthly subscription or one-time payment? +
It is a 100% one-time payment for lifetime access! No recurring fees or hidden subscriptions. All future v2.x feature updates and bug fixes are included.
How does Pro OTP Activation work? +
Upon purchasing, enter your Gmail address inside the TC Forge Settings panel in After Effects. Click 'Send Code' to receive a 6-digit verification OTP in your inbox, enter it, and all Pro features unlock instantly!
How does the Expression Auto-Fixer work? +
If After Effects returns an expression error, TC Forge inspects the timeline error log, diagnoses missing keyframes or invalid ExtendScript syntax, and automatically generates a repaired version.