Dynamic Glass makes Minecraft glass connect automatically for cleaner windows and builds, while still letting you place normal vanilla glass whenever you want.
Place glass normally and the borders between nearby Dynamic Glass blocks disappear, leaving only the outside edge of the glass structure.
Hold Shift while placing to place completely normal vanilla glass with the usual borders.
Place normally to automatically remove borders between connected glass.

Hold Shift while placing to keep the normal Minecraft borders.

Dynamic Glass works with:
You still use the normal Minecraft glass items.
There are:
Dynamic Glass is designed to work in both singleplayer and multiplayer. For multiplayer, install the mod on both the client and server.