Best Free Tiny House & ADU Design Software
For free tiny house & adu design software, TinyGrid leads our ranking: Genuinely free browser floor planner with all drawing tools, full fixture library, PNG/SVG/PDF export and unlimited local saves; only optional cloud storage is paid. TinyGrid, 3D Tiny House Designer and DEN Outdoors are compared in full below — each with its real free-tier limits, platforms, and export formats spelled out before you sign up.
14 tools ranked · free tiers & pricing last verified Jun 23, 2026
How they compare
Ordered by overall fit — free-tier value, output quality, platforms, and ease.
TinyGrid
Truly freeGenuinely free browser floor planner with all drawing tools, full fixture library, PNG/SVG/PDF export and unlimited local saves; only optional cloud storage is paid.
3D Tiny House Designer
Free, with limitsFree browser version lets you configure a trailer and drag-and-drop a tiny house; full features and plan export require a one-time ~$12 premium unlock.
DEN Outdoors
Free, with limitsFree instant AI build-cost estimator (enter design + lot, no sales call) is self-serve; the online customization platform and plans start at a paid $299 package.
Dwellito
Free, with limitsFree self-serve marketplace to browse prefab/ADU plans with a 3D home configurator, site planner and instant price estimates; build requires manufacturer quotes.
TinyFloorPlan
Free, with limitsFree online editor draws multi-floor plans with real dimensions and exports to PNG/PDF/DXF/SVG; some collaboration/export tiers may require an account.
Abodu Configurator
Free, brand-lockedEach Abodu model has a free 'Configure' tool to customize finishes and options; only Abodu's six prefab ADU models, turnkey-priced.
BOXABL Casita
Free, brand-lockedSelf-serve product/order pages and downloadable specs for the single Casita ADU model; customization is minimal and limited to Boxabl's one unit.
Pacifica Tiny Homes Model X Configurator
Free, brand-lockedFree self-serve configurator covering size, exterior, interior, kitchen, bath, climate and delivery for Pacifica's Model X tiny home; brand-locked.
Place Buildings Backyard Studio Configurator
Free, brand-lockedFree 5-step 3D configurator for a backyard studio/ADU (model, siding, roof, windows/doors) with multiple views; pricing comes via a quote request.
Samara Backyard
Free, brand-lockedFree 'Configure in 3D' tool tailors a Backyard ADU's size, layout and customizations; only Samara's own units, with install handled by them.
Studio Shed Design Center
Free, brand-lockedFree 3D Design Center lets you size, place doors/windows and pick finishes with live pricing; saving requires contact info and it builds only Studio Shed kits.
Tiny Heirloom Live Price Builder
Free, brand-lockedFree self-serve configurator that builds a tiny home from base models through bathroom, kitchen, tech and delivery options with a live price; brand models only.
Tumbleweed Tiny House Configurator
Free, brand-lockedFree self-serve configurator to pick a model, exterior/interior options and delivery, then download a printable quote PDF; only Tumbleweed's own models.
Villa Homes Design Studio
Free, brand-lockedFree self-serve browsing of 20+ ADU floor plans with finish customization and an instant quote; only Villa's HUD-approved prefab models.
TinyGrid
Truly freeGenuinely free browser floor planner with all drawing tools, full fixture library, PNG/SVG/PDF export and unlimited local saves; only optional cloud storage is paid.
3D Tiny House Designer
Free, with limitsFree browser version lets you configure a trailer and drag-and-drop a tiny house; full features and plan export require a one-time ~$12 premium unlock.
DEN Outdoors
Free, with limitsFree instant AI build-cost estimator (enter design + lot, no sales call) is self-serve; the online customization platform and plans start at a paid $299 package.
Dwellito
Free, with limitsFree self-serve marketplace to browse prefab/ADU plans with a 3D home configurator, site planner and instant price estimates; build requires manufacturer quotes.
TinyFloorPlan
Free, with limitsFree online editor draws multi-floor plans with real dimensions and exports to PNG/PDF/DXF/SVG; some collaboration/export tiers may require an account.
Abodu Configurator
Free, brand-lockedEach Abodu model has a free 'Configure' tool to customize finishes and options; only Abodu's six prefab ADU models, turnkey-priced.
BOXABL Casita
Free, brand-lockedSelf-serve product/order pages and downloadable specs for the single Casita ADU model; customization is minimal and limited to Boxabl's one unit.
Pacifica Tiny Homes Model X Configurator
Free, brand-lockedFree self-serve configurator covering size, exterior, interior, kitchen, bath, climate and delivery for Pacifica's Model X tiny home; brand-locked.
Place Buildings Backyard Studio Configurator
Free, brand-lockedFree 5-step 3D configurator for a backyard studio/ADU (model, siding, roof, windows/doors) with multiple views; pricing comes via a quote request.
Samara Backyard
Free, brand-lockedFree 'Configure in 3D' tool tailors a Backyard ADU's size, layout and customizations; only Samara's own units, with install handled by them.
Studio Shed Design Center
Free, brand-lockedFree 3D Design Center lets you size, place doors/windows and pick finishes with live pricing; saving requires contact info and it builds only Studio Shed kits.
Tiny Heirloom Live Price Builder
Free, brand-lockedFree self-serve configurator that builds a tiny home from base models through bathroom, kitchen, tech and delivery options with a live price; brand models only.
Tumbleweed Tiny House Configurator
Free, brand-lockedFree self-serve configurator to pick a model, exterior/interior options and delivery, then download a printable quote PDF; only Tumbleweed's own models.
Villa Homes Design Studio
Free, brand-lockedFree self-serve browsing of 20+ ADU floor plans with finish customization and an instant quote; only Villa's HUD-approved prefab models.
How we picked
Every pick here is chosen on real-world fit — free-tier value, platforms, 3D quality, and export options. Read the full method on our how we rate page.