This document introduces two open source development tools for Adobe Experience Manager (AEM): AEM Fiddle and AEM Live Reload. AEM Fiddle provides a read-eval-print loop (REPL) for interacting with AEM, allowing developers to read, evaluate, print, and loop content. AEM Live Reload enables automatic reloading of scripts and client libraries in AEM 5.6+ when files are changed, removing the need to manually refresh, and requires installing browser plugins. Demos of both tools are provided.