Tools
Free, self-hosted, no third-party trackers. Every calculation runs locally in your browser - your inputs never leave your device. Tools that touch sensitive habits skip even our anonymous visit count.
What do you want to figure out?
Before you deposit
Decision help from our fact database - requirements, evidence, unknowns.
Book finder
Three questions, hard requirements, honest unknowns - no sponsored picks.
open tool →Book & domain check
What our research actually knows about a site or domain - evidence, dates, unknowns.
open tool →Compare any books
Pick 2-3 operators, see payout rules, fees and limits side by side.
open tool →Understand the cost
The math that decides your money: bonuses, edges, risk, conversion.
Wagering calculator
Turn bonus + rollover into the real expected clearing cost.
open tool →Betting cost & session risk
What betting costs per week at the real book margin - and the odds of ending a session in profit or broke.
open tool →Market margin & RTP checker
Enter all outcomes of a market and get the overround and fair odds - or check a game payout table for the real RTP.
open tool →Odds converter & margin
Convert decimal/american/fractional odds and see the real margin you are paying.
open tool →Parlay calculator
Combined odds and true payout of an acca - and how fast the margin compounds.
open tool →BTC converter & net-arrival
BTC to USD/EUR/GBP plus what actually arrives after fees.
open tool →Verify & stay in control
Recompute operator claims and keep yourself honest - local-only, not visit-counted.
Verify results
Recompute what the operator claims - math, not trust.
Provably-fair verifier
Recompute seed-based dice rolls locally - the common documented schemes, commitment-checked.
open tool →When money is stuck
Deposits not credited, withdrawals missing: diagnose, then act.
Deposit & withdrawal help
Money stuck? Work out where it is and what to do next - with a support template.
open tool →Control your spending
Local-only tools that keep you honest with yourself.
Private spend journal
Local-only record of deposits, withdrawals and balances - with monthly limits.
open tool →