Keylight is a professional chroma keying (green screen/blue screen) plugin originally developed by The Foundry. Adobe licensed it and bundled it with After Effects starting from CS3. Version 1.2 was the standard for CS5.
If Keylight 1.2 is completely missing, you can copy it from a working Adobe installation.
For Windows 7 / 10 (CS5):
For Mac OS X (Snow Leopard/Lion):
⚠️ Warning: Do NOT download Keylight from random “free plugin” websites. Most contain malware. The only safe source is Adobe’s servers or a verified CS5 disk.
Keylight is the industry-standard green screen (chroma key) plugin. If you are still using Adobe After Effects CS5 (a classic, 64-bit version), you might have noticed that Keylight doesn't always show up by default, or you need the specific 1.2 version for compatibility.
Good news: Keylight is actually free and included with After Effects. You just need to know how to activate or reinstall it correctly. after effects cs5 plugin keylight 12 download install
In this guide, I’ll show you exactly how to get Keylight 1.2 running on After Effects CS5 (Windows & Mac).
Q: Can I use Keylight 2.0 or 3.0 in After Effects CS5? A: No. Keylight versions are tied to After Effects builds. CS5 only supports the 1.2 binary format.
Q: My Keylight 1.2 is missing the "Intermediate Result" view. Is that normal?
A: Yes. The Intermediate Result and Combined Matte views were added in Keylight 2.0 (CS6). You only have Final, Status, and Source views. Keylight is a professional chroma keying (green screen/blue
Q: Will Keylight 1.2 work on Windows 10 with CS5? A: Yes, with moderate success. Run After Effects CS5 in Windows 7 compatibility mode (Right-click AE icon > Properties > Compatibility > Windows 7). Some interface glitches may occur but keying works.
Q: I lost my CS5 serial. Can I still get Keylight? A: Not legally. Adobe support no longer issues CS5 replacements. You would need to purchase a used CS5 license (eBay/Craigslist) or upgrade to a modern After Effects subscription.
If Keylight 1.2 just won’t cooperate or you need better results, you have alternatives that still run on CS5’s aging architecture. For Mac OS X (Snow Leopard/Lion):