Shelfcanvas
Halloween · Oct 31

AI Halloween Costume Generator for You and Your Pet

Turn one selfie or pet photo into an original Halloween portrait. Pick one of nine looks, upload a photo and press Generate — the costume and scene change, your face or your pet's markings stay recognizable.

Drop your selfie here

Hollow Oak Witch selected · chest-up photo works best

See all 9 looks
  • 9 looks
  • 4:5 portrait PNG
  • Cost shown on Generate

Shelfcanvas AI Halloween Costume Generator turns one selfie or pet photo into an original portrait set in its own Halloween scene, while your face, or your pet's markings, stay recognizable.

In short

  • Six looks are for you and three for your pet, each shown with a real example result.
  • Every look comes with its own Halloween scene, light and colour palette, with jack-o'-lanterns, cobwebs, fog and moonlight.
  • You choose a look instead of writing a prompt; each generation makes one 4:5 portrait PNG.
  • Each portrait shows one person aged 18 or older, or one pet.
  • Try another look puts a different costume on the same photo without uploading it again.

Try a look on your photo

By uploading, you confirm you have permission to use this photo and everyone in it is 18 or older. Terms

Trying a look on your photo takes four steps in the generator above.

  1. Choose Me or Pet. Press Me for a photo of yourself or Pet for an animal photo, then pick a look such as Hollow Oak Witch or Glow Dino.

  2. Upload your photo. Press Upload photo and choose a clear chest-up selfie, or a pet photo taken at eye level with the whole body in frame.

  3. Generate the portrait. Press Generate and watch Checking photo, Creating your look and Final check.

  4. Download or try another look. Compare the result with your original and press Download to keep it, or press Try another look to put a different costume on the same photo.

If you came from the Halloween AI prompts page through Try on your photo, that look and its mode are already selected. Each generation makes one portrait of one person or one pet; Generate again makes a new portrait of the same look.

Six AI Halloween costume ideas for Me

The six AI Halloween costume ideas for Me are listed below. Every Me look keeps your face, skin tone, apparent age, expression and head angle, and keeps you as the only person in the picture; Halloween Robot and Moonlit Unicorn also keep your glasses on. Each look starts from your photo. The editor may extend the picture a little below your frame to show the costume, so a chest-up photo is enough for every look.

AI Halloween costume portrait of a woman in a moss-green wool cloak before a hollow oak

Hollow Oak Witch

Hollow Oak Witch is a woodland witch without a pointed hat: a moss-green wool cloak with the hood resting on your shoulders, a dark linen tunic, a leather belt and bundles of dried herbs at the waist. You stand in front of a huge hollow oak at midnight, with jack-o'-lanterns glowing between its roots, cobwebs across the hollow, an iron cauldron, fallen leaves, low fog and a pale ghost far behind, with colours inspired by old hand-tinted photographs. Your hairstyle stays the same. A chest-up photo is enough: in the example, the editor extended a chest-up photo down to the belt and herbs. Keep your hands away from your face.

Halloween costume photo of a woman with purple beaded braids at a moonlit cemetery gate

Raven Braids

Raven Braids restyles your hair into long deep-purple braids with small silver beads and crescent charms, and dresses you in a black and plum velvet jacket with a high collar and ornate silver clasps. The scene is a moonlit cemetery garden on Halloween night: stone ravens on the gate posts, cobwebs on the iron gate, jack-o'-lanterns along the path and a full moon, in the moody light of a 1990s horror film. Because the braids replace your hairstyle, this look works with any hair. Use a head-and-chest photo so the collar and clasps appear, and push your hair back from your cheeks.

Woman with short curly hair in a crescent-moon crown and navy constellation gown in an observatory

Cosmic Princess

Cosmic Princess keeps your own hairstyle and adds a small silver crescent-moon crown, with a deep-navy velvet gown embroidered in silver constellations and a few glowing stars. The background is an old observatory on Halloween night, with a huge full moon through the open dome, jack-o'-lanterns along the brass railing, cobwebs on the telescope, bats crossing the moon and a faint ghost in the mist. A chest-up photo works: the editor can extend it a little to show the embroidery on the gown. Leave a little space above your head for the crown.

AI costume of metal chest armour with blue lights on a man with glasses and beard

Halloween Robot

Halloween Robot is a costume worn by a person, not a robot face. You get segmented brushed-metal chest and shoulder plates over a charcoal undersuit, with small blue light strips, in an inventor's workshop on Halloween night with jack-o'-lanterns on the workbench, cobwebs on old machines, paper bats, a full moon in the window and a small sheet ghost in the doorway, in cool blue light inspired by 1990s camcorder footage. Your head, hair, beard and glasses stay as they are, uncovered. Shoot from the chest up or wider with your shoulders square to the camera, and keep your glasses on if you wear them.

Skeleton face paint costume with ivory bone lines on a smiling woman's cheeks and jaw

Bone Lace Skeleton

Bone Lace Skeleton is light face paint on your own face, not a mask or a skull. Fine ivory bone lines trace the cheekbones and jaw, and painted teeth sit just outside your real lips, and most of your face stays natural: the paint keeps to the cheekbones, temples and jaw. You also get a black tailored suit with a black lace collar, in a candle-lit Victorian parlour with a skull and melted candles on the mantel, jack-o'-lanterns, cobwebs on the window, a full moon and a ghost in the fog, styled as an antique silver daguerreotype. Use a sharp, front-facing photo with the whole face lit and no hand near your mouth.

Man with glasses in a lilac unicorn costume hood with a spiral horn at a carousel

Moonlit Unicorn

Moonlit Unicorn is a soft dusty-lilac plush costume with an open-face hood, small silver ears and one glowing spiral horn above the forehead. Your face, beard and glasses stay visible inside the hood. The scene is an abandoned carousel on Halloween night, with jack-o'-lanterns on the steps, cobwebs between the poles, bats across a full moon, amber carnival bulbs, a small ghost among the carousel horses and lilac mist, in the moody light of a 1990s horror film. Take the photo from the chest up, with room above your head for the horn, and face the camera straight on.

Three pet Halloween costumes for Pet

The three pet Halloween costumes are Jack-o'-Paws, Glow Dino and Baked Potato. Every Pet look keeps your animal's species and breed, coat colour, markings, eye colour and head angle, and leaves the eyes and ears uncovered. The costume is clothing on your pet; the animal never turns into a pumpkin, a dinosaur or food. The source photo can show your pet just as they are, in a familiar room, with no real costume needed.

Pet Halloween costume on an orange tabby cat: a pumpkin outfit with a green felt leaf

Jack-o'-Paws

Jack-o'-Paws adds a soft orange pumpkin outfit around the body, with ribbed panels and a green felt leaf at the collar, on a front porch on Halloween night with carved jack-o'-lanterns, a small cauldron of wrapped candy, paper bats, cobwebs on the railing, fallen leaves and a little ghost in the foggy yard, shot like a flash party snapshot. The example is a seated cat, and that pose shows the costume best: the outfit covers the chest, back and sides while the legs stay natural. Take the photo at your pet's eye level with all four paws in view.

Golden retriever in an AI-generated green dinosaur costume with glowing spikes in a moonlit backyard

Glow Dino

Glow Dino puts a charcoal-green fleece dinosaur suit on your pet, with a row of glowing green fabric spikes down the back and a fabric dino tail, in a backyard on Halloween night with jack-o'-lanterns on the lawn, cobwebs on the fence, bats across a full moon, fallen leaves and a small ghost by the fence, in cool night light inspired by 1990s home videos. Your pet's head stays fully furry, with no dinosaur head. The spikes and tail are the whole joke, so a three-quarter view that shows the length of the back works far better than a face close-up.

Orange tabby cat in a felt baked-potato costume with foil and butter in a Halloween kitchen

Baked Potato

Baked Potato wraps your pet in a padded brown potato shell with a crinkled silver-foil wrap, a felt butter pat and felt chives on top. Your pet sits on a broad wooden table in a witch's kitchen on Halloween night, with jack-o'-lanterns, melted candles, a black iron cauldron, cobwebs over copper pans and a ghost at the window, styled like a food-magazine photo. Everything on the costume is fabric, not real food. Use a calm seated photo with the head and front paws clear, and leave space around the body for the round potato shell.

Halloween costume photo tips for selfies

A chest-up selfie is enough for a Halloween costume photo: all six Me looks work from it. The editor may extend the picture a little below your frame to show the costume, as it did in the Hollow Oak Witch, Raven Braids and Cosmic Princess examples, while your face and head stay as in your photo. Bone Lace Skeleton is the one look where a face-and-shoulders selfie is all you need, because the change is on your face.

For the clearest likeness, take a fresh photo instead of using a filtered one. Hold the phone at eye level and step back a little, because a phone held close makes noses and foreheads look bigger. Face a window for soft light. Avoid hats and big hoods in the source photo: Moonlit Unicorn and Hollow Oak Witch add their own hood, and the others expect your hairline to be visible.

Matching costume portraits for couples and friends

Matching costume portraits are made one person at a time: each generation makes one portrait of one person and does not combine two photos. For a matching set, each adult uploads their own photo, or one adult uploads a photo they have permission to use. Pick looks that share a mood. Raven Braids and Hollow Oak Witch pair well as a moonlit cemetery and a misty forest. Cosmic Princess and Halloween Robot both have a full moon behind you. Two Moonlit Unicorn portraits are an easy matching costume.

Take both source photos the same way, at the same distance, light and crop, so the finished portraits sit well side by side. Then stack the downloads in the photo strip of the Halloween photo frame maker to show them side by side. Every person pictured must be 18 or older, and each person should agree to how the portraits will be shared.

Pet costume photos: shoot the pose the costume needs

A good pet costume photo shows the part of the body the costume covers, because each pet look covers a different part of the body. Jack-o'-Paws covers the chest, back and sides, Glow Dino runs along the spine to the tail, and Baked Potato sits around the back and shoulders. For all three, the most useful photo is your pet sitting still, taken at their eye level from a little to one side, with the whole body in frame. A face-only close-up gives the costume nowhere to go.

Patience matters more than kit. Wait for a calm moment, hold a treat just above the camera so your pet looks your way, and shoot several frames. Choose the sharpest one where both eyes are open. Dark coats need a lighter wall behind them, and pale coats a darker one. After generating, check the markings you know best, such as a white chest patch or a split face, against the original.

Would you rather write the costume prompt yourself?

This generator does not take typed prompts: you choose a look, and the matching prompt is used for you. That keeps every generation inside the nine original designs shown on this page. If you prefer to read the wording, the Halloween AI prompts page on Shelfcanvas lists the full prompt behind each of these nine looks, so you can see exactly what the editor is asked to keep and change.

Halloween costume pictures for content creators

For content creators, one clear Halloween costume picture per post works best. A Halloween profile picture or story is often seen at thumbnail size, so pick looks that read at a glance. Bone Lace Skeleton, Jack-o'-Paws and Moonlit Unicorn are recognizable even when small. Raven Braids and Hollow Oak Witch reward a full-size post where the velvet, wool and herbs can be seen. If you plan to add a caption, leave room on one side of your source photo and check the result before you post, because the editor may extend the frame a little to show the costume.

To test looks for a series, start with one source photo and use Try another look so the face stays consistent across the set. Download the results you will publish and keep the original. Get permission from anyone pictured for the actual use, including sponsored or commercial posts. A generated costume photo shows an idea; it is not a photo of a real event, and it does not mean anyone endorses a product. For Halloween banners, stickers and printables to go with your posts, see the Halloween kit.

Ready for yours? Scroll back to the generator, pick a look and add your photo.

Frequently asked questions

Shelfcanvas, an AI photo editor for Halloween costume portraits, turns one selfie or pet photo into a costumed portrait set in its own Halloween scene. It offers nine fixed looks, six for adults and three for pets, makes one 4:5 portrait PNG per generation, with the cost shown on the Generate button before anything is charged, and is instructed to keep your face, skin tone and expression, or your pet's markings.

Each generation in Me or Pet mode uses credits and needs a free account; the Generate button shows the cost before you start. Browsing the nine costume looks and reading this guide is free, and if you pick a look before signing in, you come back to the generator with the same look selected.

Upload one adult aged 18 or older, or one pet, per portrait, with the rights to the photo and the adult's permission to generate and use their likeness; by uploading you confirm both. This feature is for adults aged 18 or older and rejects photos detected as showing a minor, including photos uploaded by a parent. Flagged by mistake? Choose another clear photo of the adult with the whole face visible and good light. If it keeps happening, email contact@shelfcanvas.com about the blocked task. Each generation makes one portrait of one person or one pet. For a couple or group, generate each adult separately with related looks. The adult-only rule is Shelfcanvas's own product rule, not a legal ban on child photos.

See the official COPPA definitions.

Shelfcanvas uses your photo to make the portrait you asked for, including the photo check and the final check; the image and model services that process it follow their own terms, and Shelfcanvas does not make a blanket promise about their model-training practices. Results stay available to download for 30 days, source uploads are removed with the expired result, temporary moderation copies are cleared within a day and private review evidence is kept for 180 days. To delete uploads, results or your account sooner, email contact@shelfcanvas.com with your account email and the task.

It is a generated photo edit, not a physical try-on: it shows a costume mood or makeup idea and does not measure real clothing fit. To show the costume, the editor may extend the picture a little below your frame, down to a belt or the hands, while your face and head stay as in your photo. The portrait appears after Checking photo, Creating your look and Final check; the time depends on the photo and on how busy the image service is.

Yes, when you have the rights to the uploaded photo and permission for the intended use of the person's likeness. This does not grant exclusive copyright or clear third-party rights. Your right to use downloaded images continues after your subscription ends.

Halloween is in 4 days

See yourself in a Halloween costume

Upload a clear photo of yourself and pick a costume look to try on.

  • Costume looks
  • Couple costumes
  • Pet costumes
Everything for Halloween
Two friends in witch costumes at a Halloween party, no frame yet
Your photo
The same friends in a white Halloween Polaroid frame with bats and the caption Witchy Friday
Result

or drop a photo here · Free to try