Glow Spinner - Neon Fidget Drawing
Glow Spinner is a small toy for drawing light. You trace lines on a dark canvas with neon brushes, and the app copies each stroke around the centre so it becomes a symmetric "spinner" with 2, 3, 4, 5, 6 or 8 blades — or leave symmetry off and draw freely. When you are done, flick the drawing and it spins around its hub, the glowing lines blurring into rings and petals.
It is designed for a few relaxing minutes rather than serious illustration: there is nothing to learn, every stroke looks good, and spinning a finished piece is oddly satisfying. Children enjoy it as a digital fidget toy, and adults use it as a quick way to doodle without a blank-page feeling.
Finished spinners can be saved to a collection in your browser, marked as favourites, and exported as a still PNG image or a looping animated GIF to use as a wallpaper, sticker or message.
The app runs entirely in your browser. What you enter is saved only on this device.
How to use Glow Spinner
- Start a new spinner. Tap New Spinner on the home screen, or open Presets and pick one of the 30 ready-made designs as a starting point.
- Choose blades, brush and colour. Pick the number of blades at the top (Free, 2, 3, 4, 5, 6 or 8). Tap a colour in the palette, and use the Brush button to switch between Neon, Dual, Pulse, Lightning and Rainbow brushes and change the line size.
- Draw. Drag on the canvas. Each stroke is repeated around the centre according to the blade count. Use undo and redo at the top right, or the clear button to start over.
- Spin it. Tap Spin. Flick anywhere on the screen to set the spinner turning; a harder flick spins it faster and it slowly coasts to a stop.
- Save to your collection. Tap Save and give your spinner a name. It appears on the home screen and in Collection, where you can sort by recent or favourites, mark favourites with the heart and reopen or delete pieces.
- Export. Tap Share and choose Export PNG for a still image or Export GIF for an animation. For GIFs you choose the spin speed first; the file is then downloaded to your device.
Features
- Symmetric drawing with 2, 3, 4, 5, 6 or 8 blades, or free drawing
- Five glowing brush styles: Neon, Dual, Pulse, Lightning and Rainbow
- Colour palette and adjustable line size
- Undo, redo and clear
- Flick-to-spin with natural slow-down
- 30 preset spinners to start from
- Collection with names, favourites and sorting
- Download as PNG or as a looping animated GIF with a chosen spin speed
Why spinning lines make new shapes
Rotational symmetry
A shape has rotational symmetry when it looks the same after being turned by a fraction of a full circle. A three-bladed spinner repeats every 120 degrees, a six-bladed one every 60 degrees. Glow Spinner builds this for you: one stroke drawn near a blade is copied to all the others, so even a quick scribble becomes a balanced pattern. Snowflakes (six-fold), many flowers (often five-fold) and kaleidoscopes all rely on the same principle.
What your eyes do when it spins
When a bright line moves quickly, your visual system blends its positions over a short window of time, so a rotating dot looks like a ring and a rotating line looks like a disc. Points far from the centre travel further in the same time and blur into wide bands, while points near the hub stay sharper. This is the same effect that makes a sparkler appear to draw letters in the air and a ceiling fan look like a solid circle.
Because of this, the way you place lines matters more than their exact shape. Lines that cross the centre become filled circles; lines that stay at one distance from the hub become thin rings; diagonal lines produce spirals and petal shapes as the spinner slows down.
Tips for striking spinners
Use contrast: one or two bright colours on the dark background glow more than a full rainbow. Combine a few long strokes reaching the edge with short marks near the hub to get both outer rings and inner detail. Try the same drawing with different blade counts — odd numbers (3 or 5) often look more dynamic, even numbers (4, 6, 8) more like mandalas.
For GIFs, a slower spin speed keeps the individual lines visible, while a fast speed turns them into smooth rings. Short loops look best when shared in chats and as stickers.
A calm, screen-friendly fidget
Repetitive, low-stakes activities like doodling or spinning a toy can help some people settle their attention for a moment. Treat Glow Spinner as a short break: a few minutes of drawing, a spin, and back to work.
Frequently asked questions
Is Glow Spinner free in the browser?
Yes. Drawing, spinning, the presets, the collection and PNG and GIF downloads all work without an account.
Where are my saved spinners stored?
Only in this browser on this device (IndexedDB). Nothing is uploaded. Clearing site data for this website or using a private window deletes your collection, so download anything you want to keep.
How do I save an exported image to my phone's photos?
The PNG or GIF is downloaded through your browser. On iPhone and Android, open the download and use the share or save option to add it to your photos.
Why does GIF export take a while?
The app renders each frame of the spin and encodes them in your browser. Keep the tab open and in front until the download starts.
Can I export a video?
MP4 export is only in the iPhone and Android app. The web version offers PNG and GIF.
How is the web version different from the app?
Drawing, spinning and the collection work the same way. The app saves directly to your photo library and share sheet, can export MP4 video and offers an optional ad-free upgrade; purchases are not available on the web.
Limitations of the web version
- MP4 video export is not available on the web
- Exports are downloaded as files instead of opening the share sheet
- Collection is stored only in this browser and is not synced
- In-app purchases are not offered on the web
Phone app
Glow Spinner is also available as an app for phones and tablets: