Sportsbooks bake a hidden margin into every price. Vigkit strips it out to reveal the fair odds — what the price really implies — and answers the one thing that matters: is this bet actually in your favor?
It's called the vig — the margin baked into every line. A "−110" isn't a coin flip; it's 52.4%. Across a three-way market it can hide an 18% house edge. You can't beat what you can't measure. This makes it visible — and tells you when a price is genuinely in your favor.
No tipsters. No "locks." Just the math the pros run before every bet.
Turn free bets, "bet & get" offers, and profit boosts into near-guaranteed cash. The books give this value away — Vigkit does the math to capture it, with a positive answer almost every time.
Checks a sharp line several independent ways and only flags a bet when the math agrees there's genuine value — so you skip the fake edges and bet the real ones.
Tells you exactly how much to bet to grow your bankroll safely — and automatically bets smaller when the edge is less certain, so one bad night doesn't sink you.
Breaks down those tricky 3-way "Tie" bets, reveals their unusually large built-in margin, and tells you whether any side is genuinely worth it — tuned for each sport.
Spots the rare moments when two books price the same game far enough apart that betting both sides can lock in a profit — and shows the exact stake for each. Prices move fast, so it's uncommon and you have to act quickly.
Checks every leg and keeps only the ones with real value, then handles same-game bets correctly instead of letting the payout fool you.
Logs your bets and tracks profit, win rate, and whether you're consistently beating the closing line — the truest sign that you're ahead of the market.
Enter the sharp price and the price your book is offering. American or decimal — it converts both.
See the fair probability, the expected value, and a clear ROBUST / THIN / PASS call — no guesswork.
Get a Kelly-optimal stake sized to your bankroll and your confidence — then log it and track your CLV.
For the casual bettor.
For the serious value bettor.
For the full-time grinder.
Early access: every feature is free right now — no card required. The prices above are what Pro will cost at full launch. By using Vigkit you agree to our Terms of Service and Privacy Policy.
"It paid for itself the first week — not by picking winners, but by telling me which bets to skip. The PASS calls are worth more than the green ones."
"Finally understood why my parlays were bleeding money. The vig compounds — the Builder made that obvious and forced discipline I didn't have."
"The CLV tracker changed how I think. I stopped caring about individual results and started chasing closing-line value. My ROI followed."
Illustrative mock-up testimonials.
No — and that's the point. It never predicts games. Your edge comes from market structure: mispriced lines, removable vig, and disciplined sizing. You supply the prices; it does the math.
It's an analytics tool, not advice. It shows you the math behind a price. All betting decisions — and risks — are your own.
Your inputs, bet log, and history are saved only in your own browser — we never receive or store them. (Loading the page and verifying a Pro license use ordinary web requests, like any website, but none of your betting data is sent to us.)
No tool can, and we never claim otherwise. Most lines are efficient and the honest answer is often "pass." What the tool does is make sure that when you do bet, the number is trustworthy — and stop you from betting fake edges.
Start with a 7-day free trial so you can decide before paying. After that, all sales are final (except where the law requires otherwise), and billing is handled by our payment provider. The tool is fully self-service, with this help center and an in-app glossary — there's no account to manage and nothing to wait on.
Run the same math the bookmaker does — before you place a single bet.
Launch the tool — free →