24 ideas
Amazon FBA Calculator
24k/moProfit analysis tool that calculates Amazon FBA fees, margins, and ROI for product research. Amazon sellers and e-commerce entrepreneurs use it to evaluate product viability and pricing strategies.
Weekend1099 Tax Calculator
13k/moTax estimation tool that calculates quarterly taxes and deductions for freelancers and contractors. Self-employed professionals and gig workers use it to plan tax payments and maximize deductions.
WeekendInstagram Engagement Rate Calculator
8.5k/moAnalytics tool that calculates Instagram engagement rates and performance metrics. Influencers and marketers use it to measure content performance and optimize posting strategies.
WeekendEtsy Shipping Calculator
2.6k/moE-commerce tool that calculates accurate shipping costs for Etsy sellers with multiple carriers. Etsy sellers and handmade businesses use it to set competitive shipping prices and increase profits.
WeekendEtsy Profit Calculator
2.3k/moBusiness analysis tool that calculates true profit margins for Etsy sellers including all fees and costs. Etsy sellers and handmade entrepreneurs use it to price products profitably and grow their business.
WeekendNPS Score Calculator
1.2k/moCustomer feedback analysis tool that calculates Net Promoter Scores from survey responses. Product managers and customer experience teams use it to measure customer loyalty and satisfaction.
WeekendYouTube RPM Calculator
1k/moCreator analytics tool that calculates YouTube revenue per mille and channel earnings potential. YouTubers and content creators use it to analyze monetization performance and optimize revenue.
WeekendConversion Rate Optimizer
700/moWebsite analytics tool that analyzes and suggests improvements for conversion rate optimization. Digital marketers and business owners use it to increase website conversions and sales performance.
1–2 weeksCustomer Lifetime Value Calculator
500/moBusiness metrics tool that calculates CLV for better customer acquisition and retention decisions. Marketing teams and business analysts use it to optimize customer acquisition costs and marketing spend.
WeekendChurn Rate Calculator
450/moBusiness analytics tool that calculates customer churn rates and retention metrics. SaaS companies and subscription businesses use it to measure customer retention and identify improvement opportunities.
WeekendCustomer Acquisition Cost Calculator
350/moMarketing analytics tool that calculates CAC across different channels and campaigns. Marketing teams and growth specialists use it to optimize ad spend and improve customer acquisition efficiency.
WeekendGoogle Ads CPC Calculator
300/moPPC analysis tool that calculates cost-per-click and budget optimization for Google Ads campaigns. Digital marketers and advertisers use it to plan ad spend and improve campaign profitability.
WeekendDropshipping Profit Calculator
250/moE-commerce analysis tool that calculates true profit margins for dropshipping businesses including all costs and fees. Dropshippers and e-commerce entrepreneurs use it to evaluate product viability and pricing.
WeekendQuarterly Tax Estimator
200/moTax planning tool that calculates estimated quarterly tax payments for self-employed individuals. Freelancers and business owners use it to avoid penalties and manage cash flow effectively.
WeekendShopify Profit Margin Calculator
200/moE-commerce analytics tool that calculates profit margins for Shopify store products including all fees. Shopify sellers and e-commerce entrepreneurs use it to optimize pricing and maximize profitability.
WeekendYouTube Sponsorship Calculator
200/moCreator monetization tool that calculates fair sponsorship rates based on channel metrics. YouTubers and influencers use it to price brand partnerships and negotiate sponsorship deals effectively.
WeekendEmail Open Rate Calculator
150/moEmail marketing analytics tool that calculates open rates and campaign performance metrics. Email marketers and campaign managers use it to measure engagement and optimize email strategies.
WeekendFacebook Ads ROI Calculator
100/moAdvertising analytics tool that calculates return on investment for Facebook ad campaigns. Digital marketers and advertisers use it to measure campaign profitability and optimize ad spend.
WeekendSaaS MRR Calculator
100/moBusiness metrics tool that calculates Monthly Recurring Revenue and SaaS growth metrics. SaaS founders and subscription businesses use it to track revenue performance and plan growth strategies.
WeekendMembership Site Calculator
50/moBusiness planning tool that calculates revenue projections and metrics for membership sites. Course creators and membership site owners use it to plan pricing and forecast business growth.
WeekendAffiliate Commission Calculator
50/moMarketing analytics tool that calculates affiliate commissions and program profitability. Affiliate marketers and program managers use it to optimize commission structures and track earnings potential.
WeekendInstagram Influencer Rate Calculator
40/moCreator monetization tool that calculates fair rates for Instagram sponsored posts and partnerships. Influencers and content creators use it to price collaborations and negotiate brand deals effectively.
WeekendPrint on Demand Calculator
40/moE-commerce tool that calculates profit margins for print-on-demand products across different platforms. POD sellers and designers use it to optimize pricing and maximize profitability.
WeekendStartup Runway Calculator
40/moBusiness planning tool that calculates how long startup funding will last based on burn rate. Startup founders and investors use it to plan fundraising and manage cash flow effectively.
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.
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.
To-do lists, notes, wikis, kanban boards and project trackers. Most are a weekend to a week with Claude Code.
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.