CEL Playground is an interactive WebAssembly (Wasm) powered environment to explore and experiment with the Common Expression Language (CEL). It provides a simple and user-friendly interface to write and quickly evaluate CEL expressions.

CEL Playground is built by compiling Go code to WebAssembly and includes the following libraries that are available in the environment:

• CEL extended string function library
• Kubernetes list library
• Kubernetes regex library
• Kubernetes URL library

Take a look at all the environment options.

Build the Wasm binary:

make build

Serve the static files:

make serve

We appreciate your contribution. Please refer to our contributing guideline for further information. This project adheres to the Contributor Covenant code of conduct.

CEL Playground is available under the Apache 2.0 license. See the LICENSE file for more info.