If you have the money, you could either download it from Minecraft.net or from the Microsoft store. I'm pretty sure you get both editions through the Microsoft store. If you're trying to get it for free (just warning you that's piracy and technically illegal, but if nobody catches you you're probably not gonna get in too much trouble) I don't know any ways because what I used doesn't work anymore and now I am saving up Microsoft Rewards points for an Xbox gift card because that's how broke I am.

Download it from Minecraft.net or search it on Microsoft Store.

Visit Minecraft.net and click the button labeled "get Minecraft" once you're there. After that, choose any of the devices, and as an added perk, you'll receive Bedrock with the Java edition. However, the incentive is restricted to Windows 11 only. Have you got it with you? If you don't, it's going to be very difficult for you to do so. waffle game

Go to Minecraft.net and go to the get Minecraft button. Then select any of the devices and you’ll get Bedrock with Java edition as a bonus. But the bonus is only for Windows 11. Do you have it? If you don’t then it’s basically impossible.

WilloMC

if you own Minecraft java you should have bin given it for free just click the side that says Minecraft for windows

how ever if you have mac I don't think you can

you may be able to buy it from: https://www.minecraft.net/en-us

if you want to convert java packs to bedrock you can do that here: https://rtm516.github.io/ConvertJavaTextureToBedrock//