Although Minecraft's Java and Bedrock Editions are quite different, it's still possible to convert an existing Java world to Bedrock if you don't mind there being some differences to the world ...

There is a critical difference between a Bedrock seed and a Java seed, because each one correlates to it's own specific version of Minecraft.

Here's what you should know about the differences in Minecraft Java and Bedrock for Windows before you choose which to install.

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While the Bedrock Edition does have add-ons, it features more paid content to add to the game, whereas the Java version lets you install mods (such as texture packs) for free.