BROWSER GTO SOLVER
BROWSER-BASED • INSTANT • PRO TOOLKIT

Master GTO.
Train like the pros.

The full pro GTO poker solver in your browser.Instant. No install. Built for serious study.

Join the waitlistTry the live demo

Free during beta. No install required.

For serious recreational players, study groups, and coaches who want mathematically sound strategies.
How GTO Lab works

Study. Practice. Improve.

01 — STUDY
Study any spot
Instant GTO for preflop, flop, turn, river. Set stacks, pot, bet sizes. See the full strategy.
02 — PRACTICE
Practice decisions
Train spots with instant feedback. See your EV loss and learn the correct frequencies.
03 — IMPROVE
Analyze your play
Coming soon: Upload hands and get solver-backed reports on where you leak EV.
The real thing

See it in action

BTN vs BB — K♠9♦4♣ SRP 100bb100bb • SRP
14.8% (25 / 169)
AA
AKs
AQs
AJs
ATs
A9s
A8s
A7s
A6s
A5s
A4s
A3s
A2s
AKo
KK
KQs
KJs
KTs
K9s
K8s
K7s
K6s
K5s
K4s
K3s
K2s
AQo
KQo
QQ
QJs
QTs
Q9s
Q8s
Q7s
Q6s
Q5s
Q4s
Q3s
Q2s
AJo
KJo
QJo
JJ
JTs
J9s
J8s
J7s
J6s
J5s
J4s
J3s
J2s
ATo
KTo
QTo
JTo
TT
T9s
T8s
T7s
T6s
T5s
T4s
T3s
T2s
A9o
K9o
Q9o
J9o
T9o
99
98s
97s
96s
95s
94s
93s
92s
A8o
K8o
Q8o
J8o
T8o
98o
88
87s
86s
85s
84s
83s
82s
A7o
K7o
Q7o
J7o
T7o
97o
87o
77
76s
75s
74s
73s
72s
A6o
K6o
Q6o
J6o
T6o
96o
86o
76o
66
65s
64s
63s
62s
A5o
K5o
Q5o
J5o
T5o
95o
85o
75o
65o
55
54s
53s
52s
A4o
K4o
Q4o
J4o
T4o
94o
84o
74o
64o
54o
44
43s
42s
A3o
K3o
Q3o
J3o
T3o
93o
83o
73o
63o
53o
43o
33
32s
A2o
K2o
Q2o
J2o
T2o
92o
82o
72o
62o
52o
42o
32o
22
Fold
Call / Check
Raise
Drag to select • Click to toggle
Board
Ks9d4c
Flop • Pot ~6bb
Edit ranges live. Solve uses the visible selection.
Strategy at this node
Hit Solve to see GTO frequencies and EV.
Real version streams iterations and replaces estimate with exact Nash solution.

Range colors: fold • call/check • raise. Mixed strategies use gradients.

GTO study today is broken

  • • Desktop solvers are powerful but painful to use and install
  • • Pre-solved libraries never quite match the spot you face
  • • No good way to actually practice and get feedback

GTO Lab is different

The complete pro GTO toolkit in your browser: pre-solved libraries, trainers, hand analysis, node locking, preflop charts, ICM tools and more — instant estimates plus exact solving.

The toolkit

The complete pro toolkit

Visual Range Builder
The signature 13×13 matrix. Click, drag, filter suited. Exactly like the best desktop tools.
Instant postflop solves
Any flop, turn, river. Configure stacks, pot, and bet sizes. See strategy + EVs immediately.
Node-by-node Explorer
Walk the tree. See how frequencies and EVs change on every card. Understand why.
Training modes SOON
Drill spots. Get scored on your decisions vs GTO. Track your EV lost over time.
Instant Estimates
Fast estimates followed by precise solving. Study more spots, iterate quickly.
Explore full feature details →

Features trusted by the best solvers

Massive Pre-Solved Library — Instant access to millions of solved spots for cash games, MTTs, and all stack depths. No waiting for solves.
Advanced Trainer & Drills — Practice any spot with instant GTO feedback, EV loss scoring, and targeted drills to fix leaks.
Hand History Analyzer — Upload your sessions for detailed GTO reports, EV leak detection, and progress tracking.
Node Locking & Exploits — Lock strategies and re-solve to create maximum exploitation against specific opponents.
Preflop Range Charts — Professional preflop solutions and charts for every position, format, and stack depth.
ICM & Tournament Tools — ICM-aware solving for MTTs, final tables, PKO, and bounty formats.

Plus custom bet trees, aggregated board reports, range vs range equity, tree navigation, MCP support, and everything else the top solvers (GTO Wizard, PioSolver, GTO+) deliver — available instantly in your browser.

How it works

01
Configure the spot
Pick positions, effective stacks, pot size, and the board. The tool auto-loads sensible starting ranges.
02
Build ranges & tree
Adjust the 13×13 grids for hero and villain. Choose your bet sizes and max raises.
03
Solve & explore
Hit solve. Watch exploitability drop. Click through every decision point and runout.

FAQ

Is this a real solver or just estimates?

The production version uses a real CFR+ engine (WASM in the browser for speed + optional server deep solves). The demo on this page uses accurate sample data to show the interface and interaction.

Will it work on mobile?

Yes. The range grid and most of the UI are fully responsive. You’ll be able to study on the go.

How accurate will the solutions be?

Target < 0.3% pot Nash distance by default (configurable). Comparable to modern desktop solvers for the tree sizes we support in v1.

When will training and preflop charts be ready?

Postflop solver first. Training, preflop library, and hand history import are the next major milestones after the core solver is solid.

Be first to train with GTO Lab.

Early access to the beta + private study resources.

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