Free GTO poker solver for Texas Hold'em, online
Solve No-Limit Hold'em postflop spots right in your browser — on a phone or a computer. No download, no signup, no subscription.
Solve a spot in a couple of minutes
Spot
Start from a ready-made 6-max 100bb spot or enter your own ranges, pot and stacks.
Board
Deal the flop; add a turn and a river to start from a later street.
Solve
The solver iterates until it reaches the accuracy you set — 0.5% of the pot is plenty for study.
Strategy
Walk the action tree and see how often every hand checks, bets or raises, with EV and equity.
What the solver does
Matrix and combo list
The 13×13 matrix shows the mix for each hand class; the range view lists every combo with its suits.
EV and equity
The expected value of every action in big blinds and the equity of every hand.
Filters that speak poker
Type AKs+, AhKh or $tp, or pick categories like sets, top pair or flush draws.
Full action tree
Check, bet, raise and all-in on every street, all the way to the river.
Your own bet sizes
Three tree sizes — Light, Standard and Detailed — or set every sizing yourself.
Private by design
The solve runs on your device; your spots are never uploaded anywhere.
Ready-made spots: 6-max cash, 100bb
Ranges and bet sizes come pre-filled from a 6-max cash baseline — change anything before you solve.
- SRP BTN vs BB
- SRP CO vs BB
- SRP UTG vs BB
- SRP SB vs BB
- 3-bet BB vs BTN
- 3-bet SB vs BTN
- 3-bet BTN vs CO
- 4-bet CO vs BTN
How a poker solver works in your browser
GTOLens runs a discounted CFR solver (counterfactual regret minimization) compiled to WebAssembly. It uses every core of your phone or computer, so no server time is needed and nothing you enter leaves your device.
Accuracy is measured as exploitability — how much a perfect opponent could win against the strategy, as a share of the pot. You choose 1%, 0.5% or 0.3%, and the solver stops as soon as it gets there.
Tree size sets the detail: Light (one bet size per street, the best choice for a phone), Standard (two sizes on the flop, for a laptop) and Detailed (two sizes on every street, for a powerful computer).
Frequently asked questions
How accurate is a free solver?
As accurate as you ask: the solver stops at the exploitability you choose — 1, 0.5 or 0.3% of the pot. At 0.5% the strategy is very close to equilibrium, which is more than enough for study.
How long does a solve take?
A Light tree on the flop usually solves in a few minutes or less, depending on your device and the ranges. Bigger trees and tighter accuracy take longer, and you can stop early to look at the current strategy.
Will my phone handle it?
Yes for the Light tree, which is designed for phones. Standard and Detailed trees need more memory and time, so solve them on a laptop or desktop.
How is it different from paid solvers?
It runs free in your browser and covers heads-up postflop spots with ready-made 6-max ranges. Paid desktop solvers add extras such as aggregated reports and node locking; for studying individual spots GTOLens gives you the core: strategy, EV and equity for every hand.
Solve your first spot
Open the solver, pick BTN vs BB and deal a flop — it takes a minute.
Play Omaha? See solved PLO preflop ranges →