StackBlitz
CodeSandbox
replit
CodePen
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Glitch
JSFiddle
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Countspace
TickCounter
Timer and Stopwatch
Countdown+
Countdown Studio
Day Counter App
Free Countdown Timer
Countspace is a countdown boards app. Instead of separate URLs for each thing you're counting down to, you stack multiple countdowns on one board and share it with a single link.
For anyone whose life has more than one important date coming up โ event planners, sports fans tracking a season, wedding planners with lead-up milestones, travelers with a multi-stop itinerary, teams with product launches. Recipients don't need an account to view the shared board.
Free tier: 3 countdowns per account. Pro tier: unlimited, video/image backgrounds, password-protected boards, custom domain support. Curated Explore section with public countdowns anyone can follow.
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Countspace's answer:
Existing countdown tools force you to create one countdown per URL, which fragments any use case with more than one date. Countspace lets you group them โ a trip with departure + arrival + return, a wedding with lead-up milestones, a sports season, a launch with pre-orders + release + review windows. One board, one link, one screen.
Countspace's answer:
Multiple countdowns stacked on a single shareable board, instead of the usual one-countdown-per-URL sites. Recipients don't need an account to view. Boards open fullscreen on any screen (TV, phone, event monitor) and can be embedded on third-party sites via a separate embed subdomain.
Countspace's answer:
Next.js 15 (App Router), Supabase (Postgres + Row-Level Security + Realtime + Auth), Vercel (hosting + edge middleware), Stripe (payments).
Countspace's answer:
Built out of the frustration I kept hitting as a solo maker โ I made one-off countdown pages for different things (a trip, a wedding lead-up, event launches) and got tired of hopping between them. I wanted one place I could hand a URL to anyone and open fullscreen on any screen. So I built the app I wanted for myself.
Countspace's answer:
Anyone whose life has more than one important date coming up at once. Wedding planners tracking lead-up milestones, event organizers, sports fans following a season, travelers with multi-stop itineraries, small teams tracking product launches and campaigns, personal users combining trips + deadlines + celebrations on a single board.
I've started using this as my main IDE for new projects when I'm trying things out. If it keeps getting better at the rate it has been, it'll be even better than coding locally.
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In the code editor tab (powered by StackBlitz), navigate to the env.ts file and enter your OpenAI key. Run npm run generate in the terminal to see how @autoview generates TypeScript frontend code from example schemas derived from both TypeScript types and OpenAPI documents. - Source: dev.to / over 1 year ago
URL: https://stackblitz.com What it does: An online IDE for coding, previewing, and deploying web apps instantly. Why it's great: Rapidly spin up projects without local setups โ great for experimentation. - Source: dev.to / over 1 year ago
CodeSandbox - Online playground for React
TickCounter - Create a countdown timer and put it on your website in 30 seconds. For free. Works great with Canva, Wordpress, Shopify, Wix and many others.
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages โ without spending a second on setup.
Timer and Stopwatch - Online Stopwatch, with start alerts, lap times and sounds. Save details of your timings in a text file.
CodePen - A front end web development playground.
Countdown+ - Countdown+ lets you to countdown to your events, birthdays, holidays and any events in your life. Add and Follow your friends and family events to keep track of their events.
