Plan Harmony

What it does

Why should the fun have to wait for the trip? Work with your friends to build the perfect itinerary and keep track of it while you're traveling. Leave the spreadsheets at work and let Plan Harmony help you plan your next adventure.

Plan trips together with friends using Plan Harmony's collaborative app. Build itineraries, find activities, track your budget, and create memorable travel experiences.

Build a shared itinerary, find activities together, track your group budget, and stop running every decision through a 200-message group chat. Plan Harmony keeps the planning in one place, and gives every traveler a real say. A calendar everyone can edit. A budget everyone can see. A vote everyone can cast. Five features that hold a shared trip together. Create a collaborative trip itinerary with a visual calendar view that everyone can access. Easily sync with Google Calendar to keep your travel plans organized and accessible during your journey. Track your entire trip budget in one place. Expense splitting shows who has paid what, so cost sharing stays transparent across the whole group.…from planharmony.com

In the maker’s words, at launch

Hi HN, I built Plan Harmony because trip planning—especially with friends or family—kept turning into a mess. We’d juggle group chats, scattered Google Docs, random links, and always miss something. I wanted a tool to help structure an itinerary, suggest smarter options, and keep everyone on the same page—without…

• 
  Holihopper2024 · holihopper.com · ▲189

  Collaborative kanban style trip planning

• II
  Itineraries.io – I built a joint trip planner in between surgeries2024 · itineraries.io · ▲96

  Hey HN, For the last several weeks, I have just been sleeping, eating, operating and developing itineraries.io. Rinse and repeat. I work as a surgeon in the UK. My main other passions are travel and programming. Recently, when I haven't been stitching someone up, I've been working on my project. Having always dreamed of exploring the world as a child, I struck a goldmine when I found a wife who shared the same love of adventure as me. We couldn't afford to travel much when we first met at university. Over the last couple of years, since both entering the workforce, we have been able to live…

• 
  Plannet2021 · apps.apple.com · ▲82

  Plan your next trip as a group

• 
  Hoku2021 · hoku.travel · ▲87

  The best way to organize your group travel plans

• 
  Trip WayJan 2026 · apps.apple.com · ▲14

  Plan trips, organize details, and share itineraries

• 
  PlanAway2025 · planaway.xyz · ▲6

  Hey HN This app will finally get your trips out of the group chat. I built PlanAway because planning group trips with friends always turned into: 200 unread messages arguing about dates A spreadsheet nobody updates Ten different apps for flights, stays, and activities PlanAway puts everything in one place: - Create a trip with friends - Add reservations, expenses, and itineraries - Collaborate in real time (no more lost notes) - Get AI suggestions for activities and food It’s live now as a web app. You can mess around with it WITHOUT creating an account! Still early, but usable — and I’d…

• 
  Lofi Cities – Pixel-art city nights with browser-generated lofi▲319

  Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.

  Work · 24d ago · loficities.com

• 
  Smooth Recorder▲257

  Mac screen recordings that look edited when you hit stop

  Work · 18d ago · smoothrecorder.com

• 
  Figma Specs▲222

  A container for your context that lives on the Figma canvas

  Work · 3d ago · figma.com

• 
  The rarest tech books and docs you've probably never read▲190

  Work · 12d ago · readrare.com

• 
  Locofy.ai▲720

  Hey there, I am Honey - Co-founder at Locofy. We, along with other makers, have been building Locofy.ai to help massively accelerate the builders - the designers, developers, product managers & founders, and we're excited to share it today with the HN Community. Locofy.ai simply converts designs into production-ready frontend code for web and mobile apps. It adapts to your preferred design tools, tech stack, and workflows with ease and lets you launch upto 4x faster, while letting designers design the way they want and giving high-quality responsive code that developers love. With this…

  Dev tools · 2022 · locofy.ai

• PO
  Porting OpenBSD Pledge() to Linux▲571

  Life & fun · 2022 · justine.lol

• 
  PocketBase – Open Source realtime backend in one file▲563

  Open Source realtime backend in 1 file. Contribute to pocketbase/pocketbase development by creating an account on GitHub.

  Dev tools · 2022 · github.com

• 
  ruttl▲552

  Visual & Design Feedback Tool that helps you review design, content and report bugs on websites, applications, PDFs and images.

  Dev tools · 2022 · ruttl.com

• 
  Pipes puzzle (a.k.a. Net) on a hexagonal grid▲537

  Hello, HN - I wanted to share this puzzle game I made during my vacation. I'm rather fond of the pipes puzzle where your goal is to restore a scrambled network of connections by rotating tiles. It's usually played on a grid of squares and this all started when I decided to make a programmatic solver for that kind of puzzle. Then I realized that with some minor changes the solver could generate new puzzle instances. I thought about what kind of puzzle to make and someone suggested a hexagonal grid. Adapting the generator wasn't too hard but then I had to create a way to play this variant. So…

  Life & fun · 2022 · hexapipes.vercel.app

• 
  Parsnip – Duolingo for Cooking▲536

  We're building Parsnip to create a "tech tree" of cooking skills that allows anyone to level up on the building blocks of cooking knowledge while tracking their progress over time. It took us a few iterations to figure out the right product; here's the story of our latest pivot: [https://parsnip.substack.com/p/a-new-hope] The goal is to create a personalized way to learn any recipe on the Internet, then use this as a springboard to help home cooks of all levels solve the problem of repeated meal planning in a 10x better way:…

  Work · 2022 · parsnip.ai