Stripe

Lopebase — Aggregates analytics, revenue, and banking data from multiple SaaS tools into one dashboard across projects.

Wisenum — Checks lottery numbers against past draws and estimates how many other people play the same numbers, suggesting less popular alternatives.

BazukaMail — Sends email marketing campaigns with flat-rate pricing and multi-domain support.

Profitly — Shows profit margin per customer by combining Stripe revenue with AI provider costs and flags unprofitable accounts.

MRRKit — Shows MRR, revenue, subscribers and downloads from several payment and app store accounts in one dashboard.

Prep66 — Offers practice questions, revision guides and mock exams for Part 66 aircraft maintenance licence exams.

B2B SaaS OS — Provides a Next.js and Supabase starter with database-level multi-tenant isolation, RBAC, Stripe billing, and an automated integration test suite for security checks.

Zerkuri — Lets creators list and sell digital design files for laser cutting, CNC, 3D printing and similar making, and lets buyers share finished projects made from them.

Pathly — Monitors websites by checking uptime, running scripted browser user journeys, and testing the HTTP/API chains behind pages.

Buildsheet — Lets users build cheat sheets by arranging markdown, chart and LaTeX blocks on a grid and exporting them to PDF or Markdown.

MansaStack — Provides focused Next.js starter codebases for SaaS, digital-product stores, and studio or agency sites, each without unrelated boilerplate.

facturapp — Creates branded PDF invoices and collects payments through the user's own Stripe account.

flekt bid — Lets site owners bid on a placement that ranks their site first on an apple-style showcase page.

Batonic — Lets buyers preview the actual digital or physical product, service, or deliverable before paying and offers a 48-hour inspection period after purchase.

Header Modifier Pro — Modifies HTTP request and response headers in the browser to work around CORS errors during local development.

Building a free visual webhook… — Generates a temporary URL that receives webhook requests and shows their raw payloads and headers live in the browser.

6 months, 2 paying customers,… — Recovers failed subscription payments for businesses that bill through Stripe.

ChaChing Alerts — Plays a sound and keeps running totals for successful Stripe payments across multiple accounts in a browser tab.

PayoutCut — Calculates net payouts after platform fees and reverse-calculates the invoice amount needed to receive a target net amount.

[Feedback wanted] Building an… — Generates four fixed Stripe subscription reports and sends a weekly email digest.

Akeso Check — Audits a Stripe billing integration by reading webhook code and simulating test-mode purchases, cancellations, failed payments and refunds against a running app to find access mismatches.

checkout-tax-api — Returns whether to charge sales tax or VAT, the rate, and an invoice line for a transaction given seller and buyer countries.

Lirova — Classifies failed Stripe subscription payments by decline code and decides whether to retry, wait, or email the customer.

PayCanary — Monitors payment account signals to flag risks of merchant account freezes, with a crisis flow for when a freeze happens.

Ledgerly — Converts Stripe webhook events into balanced double-entry accounting entries exportable to QuickBooks or Xero.

EntitleGuard — Compares a Stripe subscription CSV export against an app's users/workspaces export in the browser and flags access mismatches like unpaid-but-active or paid-but-blocked.

WinBack — Guides merchants through Stripe dispute evidence submission and drafts defense narratives for chargebacks.

Tofu — Relays webhooks from providers like Stripe and GitHub to multiple developer environments through one stable URL, with request inspection and replay.

My last SaaS died quietly… — Tracks failed Stripe subscription payments and flags at-risk revenue so the owner can follow up with users before they churn.

CleanPulse — Converts Stripe CSV exports into QuickBooks-ready files with gross sales and processing fees on separate lines.

binance-pay-saas-starter — Provides a Next.js and Express starter kit that accepts Binance Pay crypto payments and issues license keys after payment.

Ballast — Provides a SaaS boilerplate with a merchant-of-record billing engine, credits, and usage billing built in, so developers can charge without a Stripe account.

Transmit — Sends transactional email through an API, with a free sandbox that simulates sends and fires real webhooks.

I’m tired of clunky invoicing… — Generates GST-compliant invoices with automatic CGST/SGST/IGST calculation, PDF export, and a UPI payment QR code.

Settle — Generates and downloads PDF invoices without requiring an account, with planned multi-client invoice tracking and ACH bank payments.

pocketsflow — Lets businesses train an AI chatbot on their own website content with manual setup options.

SettleBolt — Accepts crypto payments via links, hosted checkout, invoices and WooCommerce, sending funds directly to the merchant's wallet without custody.

distrustMRR — Generates fake Stripe-style monthly recurring revenue charts for entertainment.

BillingOS — Provides a drop-in SDK for adding subscription billing to apps, including embeddable checkout, a customer portal, usage metering, and feature gating.

SellStein — Provides an online store builder with payment processing for merchants that other processors reject.

Razorpay Firebase Extension — Integrates Razorpay payments into Firebase projects with webhook handling, idempotency, and auditing.