OPEN BETA · FREE TO TRY

BROWSER GTO SOLVER · REAL CFR

Master GTO.
Train like the pros.

A real browser GTO toolkit — postflop solver, hand analysis, push/fold trainer, and preflop charts.
Free while in open beta. No install.

Try free Get updates See all features →

Open beta — free to try. No install. No credit card.

For serious recreational players, study groups, and coaches who want mathematically sound strategies.

How GTO Lab works

Study. Practice. Improve.

01 — STUDY

Study any postflop spot

Real client-side CFR for flop, turn, and river. Set stacks, pot, bet sizes, and rake. See full strategy and EVs.

02 — PRACTICE

Practice decisions

Push/fold trainer on our Nash/ICM data. Instant feedback and scores vs chart.

03 — IMPROVE

Analyze your play

Import CoinPoker hands, auto-solve each decision, replay at the table, and see EV loss vs GTO.

The real thing

See it in action

Try free →

Real GTO solve — CFR engine output

Flop • BB (out of position)Node EV: 3.25 bb

AA8.6

AKs

AQs

AJs

ATs

A9s1.7

A8s

A7s

A6s

A5s0.8

A4s

A3s

A2s

AKo

KK12.0

KQs

KJs

KTs

K9s9.8

K8s

K7s

K6s

K5s

K4s

K3s

K2s

AQo

KQo4.0

QJs1.8

QTs

Q9s

Q8s

Q7s

Q6s

Q5s

Q4s

Q3s

Q2s

AJo

KJo3.8

QJo

JTs1.7

J9s

J8s

J7s

J6s

J5s

J4s

J3s

J2s

ATo

KTo

QTo

JTo

T9s1.8

T8s

T7s

T6s

T5s

T4s

T3s

T2s

A9o1.4

K9o

Q9o

J9o

T9o

9911.6

98s1.8

97s

96s

95s

94s

93s

92s

A8o

K8o

Q8o

J8o

T8o

98o

87s0.4

86s

85s

84s

83s

82s

A7o

K7o

Q7o

J7o

T7o

97o

87o

76s0.5

75s

74s

73s

72s

A6o

K6o

Q6o

J6o

T6o

96o

86o

76o

660.6

65s

64s

63s

62s

A5o

K5o

Q5o

J5o

T5o

95o

85o

75o

65o

550.5

54s

53s

52s

A4o

K4o

Q4o

J4o

T4o

94o

84o

74o

64o

54o

4411.4

43s

42s

A3o

K3o

Q3o

J3o

T3o

93o

83o

73o

63o

53o

43o

330.5

32s

A2o

K2o

Q2o

J2o

T2o

92o

82o

72o

62o

52o

42o

32o

Fold

Check / Call

Bet (small)

Bet (large)

Raise

All-in

Hover for EV breakdown

Board

Ks9d4cFlop · 6bb pot

BB defends vs a BTN open. Flop K♠9♦4♣, 100bb start, ~3 SPR.

Solved to 0.46% of pot exploitability

BB (out of position) — choose an action

Aggregate strategy

Root

Real output from the production CFR+ engine. The full app solves live in-browser for any spot.

Strategy colors: fold • check/call • bet/raise • all-in. Mixed strategies use gradients. Hover a hand for EV.

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

A focused browser GTO toolkit: real client-side postflop CFR, hand analysis, a push/fold trainer, labeled preflop charts, and equity/math tools — no install, free during open beta.

The toolkit

Explore all features →

Visual Range Builder

The signature 13×13 matrix. Click, drag, weighted ranges, text I/O, saved ranges.

Browser postflop solver

Real CFR in your browser (WASM). Configure stacks, pot, bet tree, and rake. Strategy matrix, EVs, line strip, and graphs.

Tree & line navigation

Walk the tree with a line strip. See how frequencies and EVs change on every card.

Push/fold trainer

Drill push/fold spots scored against our Nash/ICM charts. Live today.

Hand analysis

Import CoinPoker hands, auto-solve, table replay, and per-decision EV loss vs GTO.

Explore full feature details →

What’s in GTO Lab today

Available now

Browser postflop solver — Real CFR in the browser (WASM). 4-step wizard, weighted ranges, simple/advanced bet trees, rake, strategy matrix, EVs, line strip, graphs.

Hand analysis — Import CoinPoker hands → auto-solve → table replay → per-decision EV loss and GTO line forward.

Push/fold trainer — Drill push/fold spots scored against our own Nash/ICM charts.

Preflop chart browser — Push/fold cash + ICM (partial 6-max coverage) and cash100 approx charts with honest provenance chips.

Equity & math tools — Equity calculator plus pot odds, outs, and MDF.

Ranges, tree nav & config — Range builder with text I/O and saved ranges, tree navigation, rake and spot config.

On the roadmap

Deeper preflop library — Broader chart coverage and more solved preflop spots over time.

More hand-history formats — Beyond CoinPoker — additional HH import formats.

Node locking & exploit re-solve — Lock strategies and re-solve for opponent-specific exploits.

Full postflop ICM — Beyond preflop push/fold ICM — deeper tournament postflop support.

Roadmap items are not available yet. We ship what works and label the rest clearly.

Pricing

Free during open beta

The full toolkit is free to try while we are in beta. Paid plans later — lock in founding rates on the list below.

Open beta — free to try. No credit card. No daily solve caps right now.

When paid plans launch

OPEN BETA

Open beta

Full toolkit free to try

$0/mo

Free during beta

Try free

✓Postflop solver (real CFR in browser)
✓Hand analysis, trainer, preflop charts
✓Equity & math tools, range builder
✓No credit card required

Pro

Planned study plan

FOUNDING RATES

$12/mo

billed monthlybilled annually · $144/yr

Get founding rates

✓Unlimited browser solves
✓Full postflop solver — boards & trees we support
✓Preflop chart browser
✓Tree & line navigation
✓Save & export ranges
✓Product updates as we ship

Elite

Planned for grinders & coaches

When paid plans launch

$23/mo

billed monthlybilled annually · $276/yr

Get founding rates

✓Everything planned in Pro
✓Priority access to new modes
✓Hand analysis & trainer included in beta today
✓Roadmap: node locking, more HH formats
✓Roadmap: deeper ICM & library
✓Priority support when paid plans launch

Everything free during open beta. Founding rates shown for when paid plans launch — not a checkout yet.

How it works

Configure the spot

Pick positions, effective stacks, pot size, and the board. The tool auto-loads sensible starting ranges.

Build ranges & tree

Adjust the 13×13 grids for hero and villain. Choose your bet sizes and max raises.

Solve & explore

Hit solve. Watch exploitability drop. Click through every decision point and runout.

FAQ

Is this a real solver or just estimates?

Real CFR runs in your browser via WASM — not AI estimates. The demo on this page shows real solver output baked from that engine, which you can explore node-by-node. There is no separate server-side deep-solve path yet.

Will it work on mobile?

The UI is responsive, so you can browse charts and light tools on the go. Heavy postflop solves are more comfortable on a desktop or laptop.

How accurate are the solutions?

Default target is about 0.3% pot Nash distance (configurable). Browser memory and tree size set practical limits — we do not claim perfect parity with every desktop-solver feature.

Are training, preflop charts, and hand analysis ready?

Yes. Push/fold trainer, preflop chart browser (push/fold + labeled approx cash charts), and CoinPoker hand analysis are live now alongside the postflop solver.

Is GTO Lab free?

Yes during open beta — free to try, no credit card. Paid plans may launch later; join the list for product updates and founding rates when that happens.

Get product updates

Product news and founding-member pricing when paid plans launch. The toolkit is free to try during open beta.