Birthday Background Generator
Make a birthday background in 8 styles: a wall of balloons, balloon bunches in the two bottom corners with the middle left clear, confetti, curly streamers hanging from the top, bunting garlands, a row of wrapped gift boxes with bows, sprinkles, or a party mix of bunting, balloons, gifts and confetti. Pick one of 11 colour sets, from rainbow brights, pastel and mint and peach to pink and gold, black and gold and navy night. No words or numbers are drawn on the picture, so it works behind your own wording, a photo or a video call. Every balloon has its string tied at the knot. Every picture comes from a seed number: the same seed and size always give the same picture, and New seed gives you a new one. Choose desktop, 4K, phone, a 16:9 video-call background, tablet, square, banner or your own size up to 4096 pixels, then 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
Details
Number field for this style: balloons, 3 to 80 (a larger number is used as 80, a smaller one as 3).
Number field for this style: balloons in each corner, 3 to 12 (a larger number is used as 12, a smaller one as 3).
Number field for this style: confetti density, 1 to 120 (a larger number is used as 120, a smaller one as 1).
Number field for this style: streamers, 3 to 40 (a larger number is used as 40, a smaller one as 3).
Number field for this style: flags on each garland, 5 to 40 (a larger number is used as 40, a smaller one as 5).
Number field for this style: gift boxes, 2 to 30 (a larger number is used as 30, a smaller one as 2).
Number field for this style: sprinkle density, 1 to 120 (a larger number is used as 120, a smaller one as 1).
Number field for this style: balloons in each corner, 3 to 7 (a larger number is used as 7, a smaller one as 3).
No words or numbers are drawn: the picture leaves the wording to you.
Runs in your browser with our own code: nothing is uploaded or saved. Every balloon, string, confetti piece, streamer, flag, gift box and sprinkle 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 birthday background
- Pick a preset: balloons, corners, confetti, streamers, bunting, gift boxes, sprinkles or the party mix.
- Choose the style and one of the colour sets.
- Set how many balloons, streamers, flags or boxes (or how thick the confetti is), the soft glow lights and the grain.
- Press New seed for a new picture; the same seed always gives the same one.
- Choose a size and download the PNG or JPG, or the print PDF.
What you can use it for
- Video-call backgrounds for a birthday call or an office celebration
- Phone lock screens and desktop wallpapers on the day
- Backgrounds behind your own birthday post, story or slide
- Party screens and TV slideshows
- Printed backing paper for cards, scrapbooks and table decorations
- Backdrops for a birthday photo you add wording to yourself
The 16 presets
| Preset | Style | Colours | Size | What is drawn |
|---|---|---|---|---|
| Rainbow balloon wall | Balloon wall | Rainbow brights | 1920 × 1080 | 24 balloons |
| Pastel balloon corners (space in the middle) | Balloon corners | Pastel | 1920 × 1080 | 12 balloons |
| Bright confetti | Confetti | Primary colours | 1920 × 1080 | 995 confetti pieces |
| Pink and gold curly streamers | Curly streamers | Pink and gold | 1920 × 1080 | 14 streamers, 332 confetti pieces |
| Mint and peach bunting | Bunting garlands | Mint and peach | 1920 × 1080 | 24 flags, 249 confetti pieces |
| Gift boxes with bows | Gift boxes | Red and white | 1920 × 1080 | 7 gift boxes, 332 confetti pieces |
| Rainbow sprinkles | Sprinkles | Rainbow brights | 1920 × 1080 | 2,488 sprinkles |
| Party mix: bunting, balloons and gifts | Party mix | Rainbow brights | 1920 × 1080 | 10 balloons, 14 flags, 4 gift boxes, 415 confetti pieces |
| Black and gold balloon wall | Balloon wall | Black and gold | 1920 × 1080 | 30 balloons |
| Navy night confetti | Confetti | Navy night | 1920 × 1080 | 1,493 confetti pieces |
| Purple party streamers | Curly streamers | Purple party | 1920 × 1080 | 18 streamers, 332 confetti pieces |
| Blue and silver balloon corners | Balloon corners | Blue and silver | 1920 × 1080 | 16 balloons |
| Lemon and lime bunting | Bunting garlands | Lemon and lime | 1920 × 1080 | 32 flags, 249 confetti pieces |
| Phone wallpaper: pastel balloon wall | Balloon wall | Pastel | 1170 × 2532 | 18 balloons |
| Video call: balloon corners | Balloon corners | Rainbow brights | 1920 × 1080 | 10 balloons |
| 4K pink and gold party mix | Party mix | Pink and gold | 3840 × 2160 | 12 balloons, 14 flags, 4 gift boxes, 1,659 confetti pieces |
Each preset only fills in the fields; change any setting afterwards.
The 8 styles
| Style | What is drawn |
|---|---|
| Balloon wall | Balloons in loose rows across the whole picture, each with a string hanging from its knot |
| Balloon corners | A bunch of balloons in each bottom corner, every string running from its balloon’s knot to a bow; the middle stays clear |
| Confetti | Rectangles, circles, triangles and thin strips scattered over the picture |
| Curly streamers | Curling ribbons hanging from the top edge, with a little confetti |
| Bunting garlands | Triangle flags on a sagging rope, one to three garlands depending on the shape of the picture |
| Gift boxes | A row of wrapped boxes with a lid, a ribbon and a bow, with confetti above |
| Sprinkles | Rounded rod sprinkles and small round dots, like the top of a cake |
| Party mix | Bunting along the top, balloon bunches in the corners and gift boxes in the middle, with confetti |
| Style | The number field means | Range |
|---|---|---|
| Balloon wall | balloons | 3 to 80 |
| Balloon corners | balloons in each corner | 3 to 12 |
| Confetti | confetti density | 1 to 120 |
| Curly streamers | streamers | 3 to 40 |
| Bunting garlands | flags on each garland | 5 to 40 |
| Gift boxes | gift boxes | 2 to 30 |
| Sprinkles | sprinkle density | 1 to 120 |
| Party mix | balloons in each corner | 3 to 7 |
The 11 colour sets
| Colours | Balloons, flags and confetti | Background (top to bottom) |
|---|---|---|
| Rainbow brights | #ff4f6d, #ffb703, #2ec4b6, #3a86ff, #8338ec | #fff8ef to #ffe9f0 |
| Pastel | #ffb3c6, #ffd6a5, #b9f2b0, #a0c4ff, #cdb4db | #fdf6ff to #e9f6ff |
| Pink and gold | #ff7aa2, #f2c14e, #e8a87c, #fff7fa, #d4a017 | #fff0f5 to #ffd9e6 |
| Blue and silver | #2f6fdd, #8fb8ff, #c0c7d1, #f7f9fc, #1d3f8a | #eaf3ff to #c9defa |
| Black and gold | #d4af37, #f5d77a, #b8860b, #f4f4f4, #9a9aa2 | #16161b to #2b2b33 |
| Mint and peach | #7fd8be, #ffb38a, #ffd97d, #a1e3d8, #ff8c69 | #f2fff9 to #ffece0 |
| Primary colours | #e63946, #ffbe0b, #1d4ed8, #2a9d8f, #f77f00 | #ffffff to #f1f4fa |
| Purple party | #c77dff, #ff70a6, #ffd670, #70d6ff, #e0aaff | #2a1145 to #4b1d6b |
| Red and white | #d62828, #fffafa, #f28482, #9d0208, #ffb4a2 | #fff5f5 to #ffe3e3 |
| Navy night | #ff5a5f, #ffb400, #00c2a8, #86b6ee, #f8f8ff | #0d1b3e to #1d2f5e |
| Lemon and lime | #ffd60a, #9ef01a, #ff9f1c, #38b000, #fff3b0 | #fffbe6 to #f1ffe0 |
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.
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 photo of your own to your screen instead, use the Phone Wallpaper Maker; to change the size of a picture afterwards, the Image Resizer.
Which tool to use
| You want | Use |
|---|---|
| A birthday picture with no wording, for a screen or a call | Birthday Background Generator (this page) |
| A printable sign with Happy Birthday, a name or an age | Birthday Sign Maker |
| Flags to print, cut out and string up | Bunting Template |
| A cone hat to print and fold | Party Hat Template |
| Sheet music, piano keys or sound waves | Music Background Generator |
For a printable sign with a headline, a name and an age, use the Birthday Sign Maker; for flags to cut out, the Bunting Template; for a music-themed picture, the Music Background Generator.
More free tools
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Frequently asked questions
Is this a photo?
No. Every balloon, string, confetti piece, streamer, flag, gift box and sprinkle is drawn by our own code from the seed: it is artwork, not a photograph.
Can it say Happy Birthday or a name?
No. This page draws no words or numbers at all, so the picture stays clean behind your own wording. For a printable sign with a headline, name and age, use the Birthday Sign Maker linked below.
Which style is best as a video-call background?
Balloon corners: the balloon bunches stay in the two bottom corners and the middle stays clear for you. Choose Video call background (16:9, 1920 × 1080), download the PNG and pick it as a virtual background in your video-call app.
What does the number field do?
It depends on the style: how many balloons, how many balloons in each corner, how many streamers, how many flags on each garland, how many gift boxes, or how thick the confetti or sprinkles are. The table below gives the range for each style.
How thick is the confetti?
The confetti and sprinkles styles place the number field × 40 pieces for every million pixels, up to 8,000 pieces in one picture. Every piece lies fully inside the picture.
What does the seed do?
It fixes where every balloon, piece of confetti, streamer and gift box goes, its colour and its tilt. The same seed and size give exactly the same picture, pixel for pixel.
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 is sent anywhere or saved when you close the page.