Fantasy Background Generator
Make a fantasy background: floating islands at golden hour or under two moons, an enchanted forest with light shafts and glowing motes, a crystal cave in violet, blue-green, amber, rose or ice blue, waterfalls pouring over stepped cliffs, or two moons rising over layered ridges. Pick a preset or set your own: the scene, the light, the glow colour, how many layers and how many islands, trees, crystal clusters or falls per layer, how much the far layers fade into the haze, the mist, the light shafts, the motes, the moons and the stars. Every picture comes from a seed number: the same seed and size always give the same scene, and New seed gives you a new one. Choose desktop, 4K, phone, a 16:9 video-call background (for Zoom, Teams or Meet), tablet, square, banner or your own size up to 4096 pixels. It is artwork drawn by our code, not a photograph. Download a PNG or JPG, or a PDF to print. Nothing is uploaded.
100% private — everything runs in your browser. Everything runs in your browser; nothing is uploaded.
The preview is the same picture drawn smaller. PNG and JPG download at the full size; the PDF fits the picture on one page.
Picture
Scene
Sky
Finish
Runs in your browser with our own code: nothing you type is uploaded or saved. Every island, tree, crystal, cliff, waterfall and moon is drawn by our own code from the seed; it is artwork, not a photograph. You may use what you make here, including commercially, with no credit needed.
How to make a fantasy background
- Pick a preset: floating islands, enchanted forest, crystal cave, cliff waterfalls, twin moons and more.
- Choose the scene, the light and the glow colour.
- Set how many layers and how many islands, trees, crystal clusters or falls per layer; press New seed for a new scene.
- Set the haze, the mist, the light shafts and the glowing motes.
- For a sky scene: choose no moon, one moon or two, their size, the clouds and the stars.
- Choose a size and download the PNG or JPG, or the print PDF.
What you can use it for
- Desktop and phone wallpapers
- Video-call backgrounds
- Book covers, story slides and game backdrops
- Tabletop game and party invitations
- Social posts and stream banners
- Writing prompts and classroom displays
The 16 presets
| Preset | Scene | Light or glow | What is in it | Size |
|---|---|---|---|---|
| Floating islands at golden hour | Floating islands | Golden light | 5 layers, 18 islands | 1920 × 1080 |
| Floating islands in a bright sky | Floating islands | Bright day | 5 layers, 23 islands | 1920 × 1080 |
| Floating islands under twin moons | Floating islands | Moonlit night | 5 layers, 18 islands, two moons, 60 motes, 900 stars | 1920 × 1080 |
| Enchanted forest with light shafts | Enchanted forest (light shafts) | Golden light | 5 layers, 31 trees, light shafts, 80 motes | 1920 × 1080 |
| Misty enchanted forest at dawn | Enchanted forest (light shafts) | Rose dawn | 6 layers, 33 trees, light shafts, 40 motes | 1920 × 1080 |
| Enchanted forest at night, glowing motes | Enchanted forest (light shafts) | Moonlit night | 5 layers, 27 trees, light shafts, 220 motes | 1920 × 1080 |
| Crystal cave, violet glow | Crystal cave | Violet glow | 5 layers, 94 crystals, 60 motes | 1920 × 1080 |
| Crystal cave, blue-green glow | Crystal cave | Blue-green glow | 6 layers, 132 crystals, 90 motes | 1920 × 1080 |
| Crystal cave, amber glow | Crystal cave | Amber glow | 4 layers, 72 crystals, 40 motes | 1920 × 1080 |
| Waterfalls over stepped cliffs | Waterfalls over cliffs | Bright day | 5 layers, 8 waterfalls | 1920 × 1080 |
| Cliff waterfalls at violet dusk, twin moons | Waterfalls over cliffs | Violet dusk | 5 layers, 8 waterfalls, two moons, 30 motes, 400 stars | 1920 × 1080 |
| Twin-moon sky over ridges | Twin-moon sky over ridges | Moonlit night | 5 layers, two moons, 1,200 stars | 1920 × 1080 |
| Twin moons at violet dusk | Twin-moon sky over ridges | Violet dusk | 6 layers, two moons, 300 stars | 1920 × 1080 |
| Video call: soft floating islands | Floating islands | Rose dawn | 4 layers, 11 islands | 1920 × 1080 |
| Phone wallpaper: crystal cave | Crystal cave | Ice blue glow | 5 layers, 90 crystals, 70 motes | 1170 × 2532 |
| 4K twin-moon sky | Twin-moon sky over ridges | Moonlit night | 6 layers, two moons, 1,400 stars | 3840 × 2160 |
Worked out by the tool.
Sizes
| Size | Pixels | Width ÷ height |
|---|---|---|
| Phone | 1170 × 2532 | 0.462 |
| Desktop | 1920 × 1080 | 1.778 |
| 4K | 3840 × 2160 | 1.778 |
| Video call background | 1920 × 1080 | 1.778 |
| Tablet | 2048 × 2732 | 0.750 |
| Square | 2048 × 2048 | 1.000 |
| Banner | 1500 × 500 | 3.000 |
Every size is drawn at its own pixels, not stretched.
The 5 scenes
| Scene | How it is drawn |
|---|---|
| Floating islands | A grassy top on a shallow arc and a jagged rock underside about 0.55 × as deep as the island is wide, with round trees and thin falls off the edge |
| Enchanted forest | Tall trunks with flared roots and a canopy, light shafts at one slant and glowing motes |
| Crystal cave | Ceiling and floor rock with hanging and rising spikes, and clusters of pointed six-sided crystals that glow |
| Waterfalls over cliffs | Stepped cliffs: every fall starts at the lip of a drop and ends at its foot |
| Twin-moon sky | Two moons (the small one 0.55 × the big one, never overlapping) over layered ridges with pines in front |
Every shape is a polygon or disc worked out by our code; there are no image files.
How the far layers fade
| Layer | Mixed towards the haze | Colour | Brightness (0–255) | Size scale | Islands |
|---|---|---|---|---|---|
| 1 (farthest) | 85 % | #d6bf91 | 192 | 0.35 | 5 |
| 2 | 61 % | #a89670 | 151 | 0.49 | 4 |
| 3 | 38 % | #7d7051 | 112 | 0.65 | 4 |
| 4 | 17 % | #564c34 | 76 | 0.82 | 3 |
| 5 (nearest) | 0 % | #352f1c | 47 | 1.00 | 2 |
Worked out by the tool for the first preset (5 layers, desktop): the farther the layer, the more haze and the lighter the colour. Each layer’s haze share is the haze setting × (1 − its place from the back ÷ (layers − 1))^1.15.
The 5 kinds of light
| Light | Haze colour | Nearest layer |
|---|---|---|
| Rose dawn | #ecc9d4 | #2b2440 |
| Bright day | #cfe3ef | #25402f |
| Golden light | #f2d8a6 | #352f1c |
| Violet dusk | #a596cf | #18142c |
| Moonlit night | #3b4b7c | #060914 |
The sky for each light comes from the same painted-sky code as our sky backgrounds.
The 5 glow colours
| Glow | Crystal colour | Cave haze | Cave rock (nearest) |
|---|---|---|---|
| Violet | #b98cff | #6f569a | #13101c |
| Blue-green | #5fe0d0 | #3d8480 | #0d151a |
| Amber | #ffbf5a | #95723f | #171313 |
| Rose | #ff8fc0 | #955877 | #171019 |
| Ice blue | #a8d8ff | #65809a | #12141c |
In the crystal cave the glow colour also sets the depth colours; in the other scenes it colours the motes.
What downloads
| Download | What is in it |
|---|---|
| PNG | The still picture at the full size you chose, every pixel exactly as drawn |
| JPG | The same picture as a smaller JPG (quality 92) |
| One Letter or A4 page with the picture fitted inside 10 mm margins |
| Paper | A 4K picture prints at | Sharpness |
|---|---|---|
| Letter (landscape) | 259.4 × 145.9 mm | 376 px per inch |
| A4 (landscape) | 277.0 × 155.8 mm | 352 px per inch |
To fit a picture of your own to a screen, use the Phone Wallpaper Maker; to change the size of a picture afterwards, the Image Resizer.
Which tool to use
| You want | Use |
|---|---|
| A fantasy scene: islands, cave, forest, falls or moons | Fantasy Background Generator (this page) |
| A map of an invented land | Fantasy Map Generator |
| Names for places and characters | Fantasy Name Generator |
| A dark stone or moonlit window scene | Gothic Background |
| A castle scene | Castle Background Generator |
Other tools: the Fantasy Map Generator to draw the land your scene sits in, and the Fantasy Name Generator to name it.
More free tools
More fantasy art and backgrounds?
Picture and print tools that run privately in your browser, with no sign-up and no watermark.
Frequently asked questions
Is this a photo?
No. Every island, tree, crystal, cliff, waterfall and moon is drawn by our own code from the seed: it is artwork, not a photograph.
Is it from a film or a game?
No. The scenes are our own shapes: no characters, creatures, logos or places from any film, book or game.
Why are the far layers paler?
Each layer is mixed towards the haze colour of the light you chose, more the farther away it is. Painters call this aerial perspective. The table below gives the numbers for the first preset.
How are the crystals drawn?
Each crystal is a pointed six-sided prism seen from the side: a long body and a pointed tip, fanned out in clusters with a glow behind them.
Can I have two moons?
Yes. Set Moons to 2 on the floating islands, cliff waterfalls or twin-moon sky scenes. The small moon is 0.55 times the size of the big one and they never overlap.
Can I use it as a video-call background?
Yes. Choose Video call background (16:9, 1920 × 1080), download the PNG or JPG and pick it as a virtual background in your video-call app. The soft floating islands preset keeps it calm.
What does the seed do?
It fixes where every island, tree, crystal, waterfall and star goes. The same seed and size give exactly the same picture, pixel for pixel.
How big does the PDF print?
The picture is fitted on one Letter or A4 page inside 10 mm margins, turned to suit its shape. The table below gives the printed size of a 4K picture.
Is it free?
Yes. There is no sign-up, no watermark and no limit.
Is anything uploaded?
No. Every pixel is worked out by JavaScript in your browser. Nothing you type is sent anywhere or saved when you close the page.