🛠️ Build problems
Apps, websites, tools, bots and prototypes.
Build a website where strangers can swap things without money
Build0 solutionsBuild Bagholder.lol without real-money gambling
Build0 solutionsBring back StumbleUpon
Build0 solutionsBuild a free app that automatically chases overdue invoices
BuildHelps small businesses0 solutionsCreate a website that finds the cheapest supermarket for your whole shopping list
BuildHelps everyone0 solutionsBuild a simple tool that combines Google, Outlook and Apple calendars into one view
BuildHelps everyone0 solutionsCreate a free website that shows whether an image has appeared online before
BuildHelps everyone0 solutionsBuild a simple app that tracks your subscriptions and warns you before they renew
BuildHelps everyone0 solutionsBuild a free tool that splits household bills fairly, not just equally
BuildHelps everyone0 solutionsCreate a website that helps parents find free local activities for children
BuildHelps parents0 solutionsBuild a tool that explains why a website is slow, in normal language
BuildHelps small businesses0 solutionsCreate a simple inventory app for small businesses
BuildHelps small businesses0 solutionsCreate an app that suggests meals from what’s already in your fridge
BuildHelps everyone0 solutionsCreate a useful web service that costs less than $1 a month to run
BuildHelps everyone0 solutions⏱ 59 days leftMake a useful application that works completely offline
BuildHelps everyone0 solutions⏱ 59 days leftCreate something useful using only public-domain data
BuildHelps everyone0 solutions⏱ 59 days leftBuild something useful with no account, no cookies, no tracking and no ads
BuildHelps everyone0 solutions⏱ 59 days leftBuild a payslip checker that runs in one HTML file and never uploads your pay
BuildHelps everyone0 solutionsTell rail passengers if a delayed journey qualifies for Delay Repay and where to claim
BuildHelps commuters0 solutionsBuild a calculator that tells graduates whether overpaying their student loan is worth it
BuildHelps students0 solutionsHelp renters check if their deposit was protected and what they can claim if not
BuildHelps renters0 solutionsTurn any smart meter CSV into clear charts in a single HTML file, nothing uploaded
BuildHelps households0 solutionsShow every genuinely free way to file US taxes now that Direct File is gone
BuildHelps everyone0 solutions⏱ 59 days leftBuild a checker for federal and state earned income and child tax credits
BuildHelps families0 solutionsMake an easy kit for challenging wrong entries on the FCC broadband map
BuildHelps rural residents0 solutionsCheck a secondhand car, crib or gadget for recalls in one search
BuildHelps parents0 solutionsMap where you can text 911 in the US, county by county
BuildHelps deaf and hard of hearing people0 solutionsReconcile FDA and ASHP drug shortage lists into one clear view
BuildHelps patients0 solutionsPublish every state FAFSA aid deadline as a calendar you can subscribe to
BuildHelps students0 solutions