DarkMode

A browser extension that forces dark mode on any website, even ones that don't support it natively.

Target User

People who prefer dark mode but visit websites that only have light themes

Core Action

Install the extension, every website automatically renders in dark mode

Business Model

Free basic dark mode, $2.99 one-time for per-site customization and exclusion lists

Based on Dark Reader / Night Eye

Intelligent color inversion that preserves images and brand colors

Related Ideas

APIPlayground

A visual tool for testing and debugging API endpoints with automatic documentation generation.

Target User

Backend developers who need to test and document APIs quickly

Core Action

Enter an API endpoint, test it visually, auto-generate documentation from responses

Business Model

Freemium — 50 requests/day free, $12/mo unlimited

Based on Postman / Insomnia

Auto-generates API docs from your test requests, not manual documentation

APIStatus

A dashboard that monitors the status of third-party APIs your app depends on.

Target User

Developers who need to know when a dependency API goes down before their users do

Core Action

Add API endpoints you depend on, get alerts when they go down or slow down

Business Model

Free for 3 endpoints, $9/mo for 25 endpoints with Slack/PagerDuty integration

Based on StatusPage.io / Upptime

Monitors APIs you USE, not your own — know when Stripe or Twilio is having issues

BugBountyBoard

A job board specifically for bug bounty programs and security researcher positions.

Target User

Security researchers looking for bug bounty programs and security jobs

Core Action

Browse active bug bounty programs filtered by technology, payout range, and difficulty

Business Model

Free for researchers, companies pay $99/mo to list their bug bounty program

Based on HackerOne / Bugcrowd

Aggregated bug bounty listings with difficulty ratings and average payout data

ChangelogBot

An AI that generates changelogs from your git commits and formats them for public release notes.

Target User

SaaS teams who neglect updating their changelog

Core Action

Connect your repo, get a formatted changelog draft after each release

Business Model

Free for public repos, $9/mo per private repo

Based on Keep a Changelog / Headway

AI-written human-readable changelogs from git history, zero manual effort

CouponClipper

An app that aggregates digital coupons from all major grocery stores and auto-clips the ones on your shopping list.

Target User

Grocery shoppers who want to save money but don't have time to search for coupons

Core Action

Create a shopping list, see all available coupons for your items across nearby stores

Business Model

Free with affiliate revenue from grocery store partnerships

Based on Flipp / Ibotta

Auto-matches coupons to your shopping list items — no searching or clipping required