18 ideas
Your own Notion
An all-in-one docs and wiki workspace: nested pages in a sidebar, block editor with headings, lists, to-dos and code, slash command menu and more.
1–2 weeksYour own Trello
A kanban board for projects: boards with lists and cards, drag and drop between lists, labels, due dates and checklists and more.
WeekendYour own Google Calendar
A calendar app: day, week and month views, create events by dragging, recurring events and more.
1–2 weeksYour own Todoist
A to-do list app: quick add with natural language dates, projects and sections, priorities and labels and more.
WeekendYour own Airtable
A spreadsheet-database hybrid: tables with typed fields, grid, kanban and calendar views, linked records between tables and more.
1–2 weeksYour own Obsidian
A markdown notes app with backlinks: markdown notes in folders, [[Wiki links]] and backlinks, graph view of linked notes and more.
WeekendYour own Evernote
A note-taking app: notes with rich text and images, notebooks and tags, web clipper and more.
WeekendYour own Asana
A team project manager: projects with tasks and subtasks, list, board and timeline views, assignees and due dates and more.
1–2 weeksYour own Things 3
A beautifully designed personal task manager: inbox, Today, Upcoming and Someday, projects with headings, areas of responsibility and more.
WeekendYour own Jira
Issue tracking for software teams: projects with issues, sprints and backlog, board with custom statuses and more.
1–2 weeksYour own monday.com
A work management platform: boards with typed columns, status, people and date columns, kanban and timeline views and more.
1–2 weeksYour own Miro
An online collaborative whiteboard: infinite canvas, sticky notes, shapes and connectors, multiplayer cursors and more.
Big buildYour own ClickUp
An all-in-one productivity app: spaces, folders and lists, tasks with many views, docs and more.
1–2 weeksYour own Linear
A fast issue tracker for product teams: issues with keyboard-first UI, cycles, projects and roadmaps and more.
1–2 weeksYour own Confluence
A team wiki: spaces and page trees, rich editor, page templates and more.
1–2 weeksYour own Basecamp
A simple project management tool: projects with to-dos, message board, schedule and more.
WeekendYour own Toggl Track
A time tracker: one-click timer, projects and clients, manual entries and more.
WeekendYour own Forest
A focus timer that grows trees: start a focus session, a tree grows while you focus, leaving early kills the tree and more.
Weekend
More things to build
Upscalers, background removers, converters and generators. Image tools pull huge search volume and most of the work can run in the browser.
Compressors, croppers, GIF makers, subtitle generators and intro makers that people search for every month.
Voice generators, transcription, trimmers and noise removal. Pair a simple editor with a speech API and you have a product.
Hashtag, caption, title and bio generators, plus schedulers and thread tools. Small AI tools with steady search demand from creators.
Checkers, validators and generators for site owners: sitemaps, robots.txt, meta tags, SSL, speed and broken links.
Resume builders, AI writers and other everyday tools that people search for by name.
Profit, tax, churn, ROI and creator rate calculators. The easiest wins on this page: no backend, one formula, and searchers who are ready to act.
Your own take on ChatGPT, Perplexity, Midjourney, Otter and more, each with a prompt that wires up the API calls for you.
Feeds, follows, stories and communities: prompts for your own Instagram, Reddit, Threads or Letterboxd for a niche.
Chat, email and calls, from a Slack for your community to a Discord-style server app.
Swipe stacks, matches and chat for a niche dating app, with safety features built in from the start.
Form builders, help desks, e-signature, website builders and design tools. Plenty of people pay for each of these every month.
CRMs, email marketing, social schedulers and lead tools: the software that businesses pay per seat for.
Budgeting, invoicing, expense tracking, trading journals and more. Where money moves, the prompts point you to a licensed provider.
Job boards, applicant tracking, shift scheduling and HR records for small teams.
Two-sided marketplaces and online stores, from a niche Etsy to a local Airbnb, with payments through Stripe Connect.
Scheduling, appointments, reservations and point of sale for local businesses: some of the easiest software to sell.
Workout logs, calorie counters, meditation and running plans. Many are a weekend build with a clear audience.
Flashcards, quizzes, courses and homework help, with Claude generating the lesson content.
Streaming, players, live video and media databases, with a video or audio API doing the heavy lifting.
Link-in-bio pages, newsletters, digital product stores, memberships and video editors for creators.
Maps, trail finders, flight trackers and booking tools built on open map data and travel APIs.
Scanners, file storage, password managers, blockers and other everyday tools.
Original browser games in the genres of the classics: puzzle, arcade, platformer, runner and party games. Your own name, art and levels, with familiar mechanics.
Give Claude more to work with while it builds: skills, MCP servers and subagents. Once it ships, use the overnight prompts to find users for it.