A warmer welcome starts with a plan
Free Christmas Light Designer (No Sign-Up)
The free designer lets you draw lights on a photo in your browser, compare bulb types and export a plan without uploading the image. Use is unlimited, with no signup.
Plan your Christmas glow
Your photo stays on your device and is never uploaded. No account needed.
Drop a photo here, or choose the sample. Click or tap points along a roof, window or tree. Double-click, press Enter, or choose Finish line. Net lights need at least three points and close automatically. In wreath mode, click to place a wreath. Keyboard: arrow keys move the canvas cursor; Space adds a point or wreath; Escape cancels a line.
Choose a photo or try the sample to begin.
Undo: Ctrl/Cmd+Z. Redo: Ctrl/Cmd+Shift+Z. Select a finished line above to change its settings.
Shopping list (estimate)
| Item | Quantity (estimate) | Shop |
|---|---|---|
Clip quantities include the extra percentage above. Check clip fit and actual mounting spacing; measure each outlet run before buying.
Make it photoreal with AI → AI render opens Nov 12, 2026. The AI workflow will ask for upload consent; this designer keeps your photo local.
Get 20 bonus credits when AI renders open Nov 12
Join the waitlist with your email. We will email you once when AI renders open, plus the bonus credits will be added when you sign up with the same email. No spam; unsubscribe anytime.
Plan lights locally, without an account
The free Christmas light designer lets you draw a lighting plan over your own house photo in the browser. Use is unlimited, with no signup. The manual tool never uploads your photograph: selection, drawing and image export happen on your device. It is a useful starting point when you want control over the exact line you sketch.
This guide describes the live manual tool. It uses drawn bulbs and a night effect rather than AI generation. That means your original house remains the photographic background, but the sketch is still a visual plan. It does not inspect mounting surfaces, calculate electrical load or turn a photograph into a measured survey.
How to draw lights along your house
Choose a clear daytime photograph showing the full roofline, porch and relevant landscaping. Begin with one continuous edge: the front eave is often easier to read than several gables at once. Click points along the visible edge, then choose Finish line, following changes in direction rather than drawing a single straight line across architectural corners. Add separate runs for windows, door frames and trees.
Use undo and redo while refining the plan. Draw large structural lines first, then add smaller details only if they help the composition. If a branch or gutter hides an edge, do not assume a line behind it is installable. Save your original photograph separately so you can compare the sketch with an uncluttered view of the building.
Mini and C9 bulbs explained
Mini lights create a fine pattern of smaller points. They are useful for exploring wrapped trunks, garland and finer accents where a large bulb would visually overwhelm the surface. A drawn line is only a simplified representation of a real wrap: trunk diameter, branch shape and actual spacing will affect the length needed.
C9-style bulbs make larger, more distinct points suited to a readable roofline or window outline. On a long ranch roof they can establish a simple rhythm; on a taller house, they can emphasize selected gables. The bulb label describes the intended visual style here. Real products vary in spacing, cable, power requirements and connection limits, so inspect their specifications separately.
Icicle and net lights explained
Icicle lights hang in short drops below a horizontal run, creating a fringe along eaves. Draw the supporting edge where the lights would attach, then judge whether the drops obscure the roof shape or compete with windows. A low porch and an upper-story eave may need different visual restraint even if they use the same color.
Net lights distribute points over an area, commonly to suggest coverage on shrubs. Use the preview to see whether that broad patch balances the roofline. It does not fit a manufactured net to a three-dimensional bush. Measure the real surface and check the actual product dimensions rather than estimating net quantities from the number of glowing points on screen.
Choose spacing, color and night effect
The controls include warm white, cool white, multicolor and red/green, along with spacing and bulb size. Wider spacing makes individual points easier to distinguish; tighter spacing creates a more continuous line. Begin with one color family, then introduce another only where it helps identify a focal area. A consistent rhythm can make an irregular facade easier to read.
The night slider darkens the photo so the drawn glow is easier to compare. It is a display effect, not a simulation of measured brightness, light spill or energy consumption. Bulb size and spacing on the canvas are visual settings, not calibrated inches. Check the real product's spacing before translating an attractive sketch into an order.
Strand calculator: estimate, then verify
The helper takes your entered roofline length, strand length and extra percentage. Formula: strands = round up(measured feet × (1 + extra ÷ 100) ÷ strand length). Worked example — estimate: 100 measured feet with 10% extra divided by 25-foot strands gives 4.4, rounded up to five strands. It does not infer roof length from the picture.
Measure separate runs and account for unlit leads, connection positions, corners and gaps. Confirm that the strand you intend to buy actually has 25 feet of illuminated length. A different usable length needs a different divisor. The result is a length estimate; product connection limits, power arrangements and access still need their own checks.
Export a sketch or continue to AI
PNG export is available with a small site mark in the corner. Keep a copy of the sketch with your real measurements and send it to an installer as a concept if useful. The local photo is never uploaded by the manual designer; exported files remain wherever you choose to save or share them.
Make it photoreal with AI when rendering opens November 12, 2026. That will be a separate upload choice requiring permission and consent. The AI flow will remove GPS metadata, offer house-number and plate blur, and delete uploads within 24 hours. Use the house-lights guide to choose a preset before taking that next step.
How it works at launch
Load a local photograph
Select your house photo on your device. The manual canvas works without an account or an upload.
Draw and compare
Trace the roofline and accents, choose mini, C9, icicle or net lights, then adjust spacing, color and the night effect.
Estimate and export
Enter a measured length for the strand estimate and export a PNG concept. Choose AI separately if you want a photoreal preview at launch.
Planned price per AI render: Standard 10 credits · HD 20 · Print 40. About $0.13–$0.20 per Standard render when a planned pack is used entirely at Standard quality. Packs coming soon.
An AI preview of the look, not a blueprint. Small details (gutters, railings, light counts) can differ from your real house.
Before and after examples
These samples were created with AI image models to show the kind of preview the AI render will produce. Results on your photo will differ.
Before

After

Frequently asked questions
Is my photo uploaded by the designer?
No. The manual designer processes the photo locally, never uploading it. AI will be a separate consent-based upload choice.
Will I need an account or credits?
Unlimited manual use is available without signup. AI rendering is separate and uses credits; it opens November 12, 2026 in free mode.
Does drawing a line measure my roof?
No. Enter real measurements for the strand helper. Canvas spacing and apparent roof length are visual cues, not calibrated dimensions.
Can I save the result?
PNG export with a small site mark is available. Save your original separately and label any shared sketch as a concept.
Can the plan become an installation quote?
It can support a conversation. An installer still needs to verify measurements, materials, mounting, access and power before agreeing a scope and price.