Minecraft is great with all the different biomes. But sometimes I wanted to build in a single biome world without starting a new save, and not always the same single biome. Sometimes I wanted to hang around in the rainforest biome, or the desert biome, etc. Flying all over the map to find large enough biomes and travel to/from them is a time consuming pain. But luckily with the addition of custom biomes, it is now much easier.

This datapack adds a dimension for each vanilla biome.
79 vanilla biomes, 79 different dimensions. Now you can start a save on a normally generated map and still experience playing on any number of single biome worlds without starting a new save. No mods needed and no custom content in this datapack, so it is a very small download.

Download the datapack and put it in %appdata%/Roaming/.minecraft/saves/(save)/datapacks
Seems to work fine being added to existing saves, toss it in, load the save, and the command to teleport works fine.

To travel to one of the dimensions, use the command Execute in (dimension, see below) run tp ~ ~ ~
For example: Execute in vbd:giant_spruce_taiga_hills run tp ~ ~ ~ to go to the dimension containing nothing but the Giant Spruce Taiga Hills biome.
~ ~ ~ will put you at the same cords in the new dimension as your current position, so best to use creative mode so you wont die if you get teleported into a mountain or a tree. Or could get really high up first, but then fall damage is a risk. Using 0 250 0 will put you in the center of the map at an elevation of 250 blocks above bedrock.

Vanilla Biome --- Dimension
Badlands --- vbd:badlands
Badlands Plateau --- vbd:badlands_plateau
Bamboo Jungle --- vbd:bamboo_jungle
Bamboo Jungle Hills --- vbd:bamboo_jungle_hills
Basalt Deltas --- vbd:basalt_deltas
Beach --- vbd:beach
Birch Forest --- vbd:birch_forest
Birch Forest Hills --- vbd:birch_forest_hills
Cold Ocean --- vbd:cold_ocean
Crimson Forest --- vbd:crimson_forest
Dark Forest --- vbd:dark_forest
Dark Forest Hills --- vbd:dark_forest_hills
Deep Cold Ocean --- vbd:deep_cold_ocean
Deep Frozen Ocean --- vbd:deep_frozen_ocean
Deep Lukewarm Ocean --- vbd:deep_lukewarm_ocean
Deep Ocean --- vbd:deep_ocean
Deep Warm Ocean --- vbd:deep_warm_ocean
Desert --- vbd:desert
Desert Hills --- vbd:desert_hills
Desert Lakes --- vbd:desert_lakes
End Barrens --- vbd:end_barrens
End Highlands --- vbd:end_highlands
End Midlands --- vbd:end_midlands
Eroded Badlands --- vbd:eroded_badlands
Flower Forest --- vbd:flower_forest
Forest --- vbd:forest
Frozen Ocean --- vbd:frozen_ocean
Frozen River --- vbd:frozen_river
Giant Spruce Taiga --- vbd:giant_spruce_taiga
Giant Spruce Taiga Hills --- vbd:giant_spruce_taiga_hills
Giant Tree Taiga --- vbd:giant_tree_taiga
Giant Tree Taiga Hills --- vbd:giant_tree_taiga_hills
Gravelly Mountains --- vbd:gravelly_mountains
Gravelly Mountains+ --- vbd:modified_gravelly_mountains
Ice Spikes --- vbd:ice_spikes
Jungle --- vbd:jungle
Jungle Edge --- vbd:jungle_edge
Jungle Hills --- vbd:jungle_hills
Lukewarm Ocean --- vbd:lukewarm_ocean
Modified Badlands Plateau --- vbd:modified_badlands_plateau
Modified Jungle --- vbd:modified_jungle
Modified Jungle Edge --- vbd:modified_jungle_edge
Modified Wooded Badlands Plateau --- vbd:modified_wooded_badlands_plateau
Mountain Edge --- vbd:mountain_edge
Mountains --- vbd:mountains
Mushroom Field Shore --- vbd:mushroom_field_shore
Mushroom Fields --- vbd:mushroom_fields
Nether Wastes --- vbd:nether_wastes
Ocean --- vbd:ocean
Plains --- vbd:plains
River --- vbd:river
Savanna --- vbd:savanna
Savanna Plateau --- vbd:savanna_plateau
Shattered Savanna --- vbd:shattered_savanna
Shattered Savanna Plateau --- vbd:shattered_savanna_plateau
Small End Islands --- vbd:small_end_islands
Snowy Beach --- vbd:snowy_beach
Snowy Mountains --- vbd:snowy_mountains
Snowy Taiga --- vbd:snowy_taiga
Snowy Taiga Hills --- vbd:snowy_taiga_hills
Snowy Taiga Mountains --- vbd:snowy_taiga_mountains
Snowy Tundra --- vbd:snowy_tundra
Soul Sand Valley --- vbd:soul_sand_valley
Stone Shore --- vbd:stone_shore
Sunflower Plains --- vbd:sunflower_plains
Swamp --- vbd:swamp
Swamp Hills --- vbd:swamp_hills
Taiga --- vbd:taiga
Taiga Hills --- vbd:taiga_hills
Taiga Mountains --- vbd:taiga_mountains
Tall Birch Forest --- vbd:tall_birch_forest
Tall Birch Hills --- vbd:tall_birch_hills
The End --- vbd:the_end
The Void --- vbd:the_void
Warm Ocean --- vbd:warm_ocean
Warped Forest --- vbd:warped_forest
Wooded Badlands Plateau --- vbd:wooded_badlands_plateau
Wooded Hills --- vbd:wooded_hills
Wooded Mountains --- vbd:wooded_mountains

To get back home use minecraft:overworld

Some notes:
The only difference between 'End Barrens', 'End Highlands', 'End Midlands' is the fauna so I gave them each a unique seed, the rest of the dimensions use the same seed as your overworld.
The 'Small End Islands' dimension wont spawn as small floating islands like the biome creates in the actual End.
'The Void' dimension wont be an an empty void. The biome generates a stone landscape.
ALL these dimensions contain their biome specific mobs, including an Ender Dragon in the 'The End' dimension

Future stuff:
Eventually I might make the datapack clear out the area you teleport into to eliminate getting teleported into a block, or add custom portals to build to go to each dimension, but don't hold your breathe. My knowledge with this kind of programming is virtually 0 so it took me over 6 hours and looking at numerous other datapacks just to figure out how to make these custom dimensions which are nothing but setting them to a single biome.
I would also like to make a dimension for each vanilla block where the entire landscape is nothing but that block, but that's further off then the custom portals.
Might make biome specific dimensions for various biome packs as well, like biomes o plenty, etc, if their creators are ok with me doing so.


Compatibilities:

This datapack just creates dimensions set to use single vanilla biomes, so any mods changing the appearance of vanilla biomes will probably effect the appearance of the biomes in these dimensions as well.


Feel free to use this on any servers.