StopByte is now a payments & ecommerce toolkit
StopByte started life as a developer forum. It is now something more focused: a set of free calculators and guides for payments and ecommerce profitability.
What’s live today
- Stripe Fee Calculator — exact fees, net payout, and reverse “what should I charge” mode
- ROAS Calculator — return on ad spend, plus target-ROAS planning
- Breakeven ROAS Calculator — the profitability floor for your ad campaigns
- Shopify Profit Calculator — true per-order profit with plan-specific fees
The old forum threads remain archived and readable at their original URLs.
More guides on payment fees, gateways, and payment orchestration are on the way.