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Backtest in seconds. On any machine.

Every market, strategy, free tool and guide CRTLAB has, in one place. 10,000 candles of replay as a free sample, and unlimited for $14.99 a month.

Open the chartFree tools
Markets17Strategies26Free tools14Learn22Company119

Markets

Backtest any of these markets candle by candle on real history.

Start here

  • All markets & conceptsEvery page you can launch a backtest from
  • US StocksEvery US Equities market in one place
  • CryptoEvery Crypto market in one place

Indices

  • NAS100Nasdaq 100 · E-mini
  • US30Dow Jones · E-mini
  • SP500S&P 500 · E-mini
  • GER40DAX 40 · FDAX

Forex

  • EURUSDEuro / US Dollar · 6E
  • GBPUSDPound / US Dollar · 6B
  • USDJPYUS Dollar / Yen · 6J
  • AUDUSDAussie / US Dollar · 6A

Commodities

  • XAUUSDGold · GC
  • XAGUSDSilver · SI
  • USOILWTI Crude · CL

Crypto

  • BTCUSDBitcoin
  • ETHUSDEthereum
  • SOLUSDSolana

Strategies

Test a trading model, ICT and SMC concept, session or indicator rule by rule.

Trading models

  • CRT Strategy BacktesterCRT
  • ICT Strategy Backtesting ToolICT
  • SMC Strategy BacktestingSMC

ICT & SMC concepts

  • Fair Value Gap BacktesterFair Value Gap
  • Order Block BacktesterOrder Blocks
  • Market Structure Backtester (MSS / BOS)Market Structure
  • Liquidity Sweep BacktesterLiquidity
  • Key Levels BacktesterKey levels
  • Opening Range Backtester (ORB)Opening range
  • SMT Divergence BacktesterSMT divergence

Indicators

  • Moving Average Backtester (SMA / EMA / WMA)Moving averages

Sessions & timeframes

  • London Session BacktesterLondon
  • New York Session BacktesterNew York
  • Asian Session BacktesterAsia

More strategies

  • Footprint Chart BacktestingVolume footprint
  • Order Flow BacktestingOrder flow
  • Volume Profile BacktesterVolume profile
  • Backtesting With Real VolumeReal volume
  • Gold Footprint ChartGold
  • Gold Volume ProfileGold
  • EUR/USD Footprint ChartEUR/USD
  • EUR/USD Volume ProfileEUR/USD
  • GBP/USD Footprint ChartGBP/USD
  • GBP/USD Volume ProfileGBP/USD
  • NAS100 Footprint ChartNAS100
  • NAS100 Volume ProfileNAS100

Free tools

Trading calculators, free and without an account.

Calculators

  • Futures Tick Value CalculatorTicks, dollars and contracts for ES, NQ, gold, crude and the micros.
  • Position Size CalculatorSize every trade to your exact risk.
  • Risk / Reward CalculatorGet your R:R and the win rate it needs.
  • Margin & Leverage CalculatorWhat the broker locks, and your real leverage.
  • Pip & Profit CalculatorPip value and P&L for any trade.
  • Compounding CalculatorWhat a fixed % gain compounds to.
  • Prop Firm Challenge CalculatorYour real odds of passing, simulated.
  • Backtest Sample Size CalculatorIs your edge real, or just noise?
  • Profit Factor CalculatorPaste your trades. Find out if the edge is real.
  • Risk of Ruin CalculatorWill the account survive its worst streak?
  • Fibonacci Retracement CalculatorRetracements, extensions and the OTE band.
  • Drawdown Recovery CalculatorThe gain — and the trades — back to flat.

Market hours

  • Session & Kill Zone TimesMarket hours in your timezone, live.

Everything

  • All free toolsThe full tools page

Learn

Definitions and guides written for people who backtest.

Start here

  • Blog15 guides on backtesting properly
  • ReferenceDefinitions of the concepts you trade

Reference

  • CRT (Candle Range Theory)Definition
  • Liquidity SweepDefinition
  • ICT Kill Zones | Times, Definition & DataDefinition
  • Order BlockDefinition
  • Premium and Discount | ICT Equilibrium ExplainedDefinition

Concepts

  • Market Structure Explained: How to Actually Read Price9 min read
  • What Is a Fair Value Gap? (And Why Most Traders Get Them Wrong)11 min read
  • What Is Liquidity in Trading? (And How to Actually Trade It)9 min read
  • What Is CRT (Candle Range Theory)? A Plain-English Guide for Traders9 min read

Guides

  • How Long Does It Take to Backtest a Strategy?11 min read
  • How to Backtest a Trading Strategy (The Complete Method)14 min read
  • What to Log in a Trading Journal (The Fields That Actually Change Anything)10 min read
  • How to Write Trading Rules You Can Actually Backtest16 min read
  • Why Your Backtest Results Don't Match Live Trading13 min read
  • Out-of-Sample Testing: How to Prove Your Backtest Isn't Just a Story14 min read
  • 7 Backtesting Mistakes That Make Your Results Worthless15 min read
  • Backtesting vs Paper Trading vs Live: What Actually Makes You Better8 min read
  • How Many Backtests Do You Need Before Trusting a Strategy?10 min read
  • How to Backtest an ICT Strategy: A Step-by-Step Guide21 min read
  • How to Backtest the CRT Strategy (Candle Range Theory), Step by Step14 min read

Company

Plans, comparisons and the legal pages.

Legal

  • Terms of ServiceThe rules for using CRTLAB
  • Refund policyCancelling and refunds
  • Privacy policyWhat we collect and why
  • Risk disclaimerBacktesting is not financial advice
  • Third-party services & licencesDatabento, TradingView and every service we use
  • Discord privacyFor the Discord integration
  • Extension privacyFor the browser extension

Why CRTLAB

  • Candle-by-Candle ReplayReplay
  • Forex Backtesting SoftwareBacktesting
  • Backtesting SoftwareBacktesting Software
  • Create your own indicatorCustom indicators
  • Backtest with news on the chartNews-aware backtesting
  • Prop firm challenge practiceProp firms
  • Prop Firm Challenge Simulatorall of them
  • AIFO Challenge SimulatorForex & CFD
  • Alpha Capital Group Challenge SimulatorForex & CFD
  • Alpha Funded Challenge SimulatorForex & CFD
  • Alpha Futures Challenge SimulatorFutures
  • Apex Trader Funding Challenge SimulatorFutures
  • AquaFunded Challenge SimulatorForex & CFD
  • Atlas Funded Challenge SimulatorForex & CFD
  • Atmos Funded Challenge SimulatorForex & CFD
  • Audacity Capital Challenge SimulatorForex & CFD
  • Axis Funded Challenge SimulatorForex & CFD
  • Blue Guardian Challenge SimulatorForex & CFD
  • Blue Guardian Futures Challenge SimulatorFutures
  • Blueberry Funded Challenge SimulatorForex & CFD
  • Breakout Challenge SimulatorCrypto
  • BrightFunded Challenge SimulatorForex & CFD
  • Bulenox Challenge SimulatorFutures
  • Bullwaves Prime Challenge SimulatorForex & CFD
  • Carrot Funding Challenge SimulatorForex & CFD
  • City Traders Imperium Challenge SimulatorForex & CFD
  • Crypto Fund Trader Challenge SimulatorCrypto
  • DNA Funded Challenge SimulatorForex & CFD
  • E8 Futures Challenge SimulatorFutures
  • E8 Markets Challenge SimulatorForex & CFD
  • Earn2Trade Challenge SimulatorFutures
  • Eightcap Challenges Challenge SimulatorForex & CFD
  • Elite Trader Funding Challenge SimulatorFutures
  • Elites Funding Challenge SimulatorForex & CFD
  • Finotive Funding Challenge SimulatorForex & CFD
  • Fintokei Challenge SimulatorForex & CFD
  • Forexive Challenge SimulatorForex & CFD
  • ForTraders Challenge SimulatorForex & CFD
  • FTMO Challenge SimulatorForex & CFD
  • FTMO Futures Challenge SimulatorFutures
  • FTUK Challenge SimulatorForex & CFD
  • Funded Futures Family Challenge SimulatorFutures
  • Funded Futures Network Challenge SimulatorFutures
  • Funded Trader Markets Challenge SimulatorForex & CFD
  • Funded Trading Plus Challenge SimulatorForex & CFD
  • FundedNext Challenge SimulatorForex & CFD
  • FundedNext Futures Challenge SimulatorFutures
  • FundedX Challenge SimulatorForex & CFD
  • FunderPro Challenge SimulatorForex & CFD
  • FunderPro Futures Challenge SimulatorFutures
  • Funding Frontier Challenge SimulatorForex & CFD
  • Funding Traders Challenge SimulatorForex & CFD
  • FundingPips Challenge SimulatorForex & CFD
  • FundYourFX Challenge SimulatorForex & CFD
  • FXIFY Challenge SimulatorForex & CFD
  • FXIFY Futures Challenge SimulatorFutures
  • Get Funded Now Challenge SimulatorForex & CFD
  • Global Forex Funds Challenge SimulatorForex & CFD
  • GOAT Funded Futures Challenge SimulatorFutures
  • GOAT Funded Trader Challenge SimulatorForex & CFD
  • Halcyon Trader Funding Challenge SimulatorFutures
  • Hola Prime Challenge SimulatorForex & CFD
  • HyroTrader Challenge SimulatorCrypto
  • IC Funded Challenge SimulatorForex & CFD
  • Instant Funding Challenge SimulatorForex & CFD
  • Klein Funding Challenge SimulatorForex & CFD
  • Leeloo Trading Challenge SimulatorFutures
  • Lucid Trading Challenge SimulatorFutures
  • MasterFunders Challenge SimulatorForex & CFD
  • Maven Trading Challenge SimulatorForex & CFD
  • MFA Traders Challenge SimulatorForex & CFD
  • Mubite Challenge SimulatorCrypto
  • MyFundedFutures Challenge SimulatorFutures
  • Next Level Funded Challenge SimulatorForex & CFD
  • Nordic Funder Challenge SimulatorForex & CFD
  • One Stop Prop Challenge SimulatorForex & CFD
  • OneFunded Challenge SimulatorForex & CFD
  • OneUp Trader Challenge SimulatorFutures
  • Paid To Trade Challenge SimulatorForex & CFD
  • Phidias Propfirm Challenge SimulatorFutures
  • PipFarm Challenge SimulatorForex & CFD
  • Pipstone Capital Challenge SimulatorForex & CFD
  • Pivex Funded Challenge SimulatorForex & CFD
  • QT Funded Challenge SimulatorForex & CFD
  • Quantum Funding Challenge SimulatorForex & CFD
  • SabioTrade Challenge SimulatorForex & CFD
  • SFX Funded Challenge SimulatorForex & CFD
  • Space Funded Challenge SimulatorForex & CFD
  • SuperFunded Challenge SimulatorForex & CFD
  • Sure Leverage Funding Challenge SimulatorForex & CFD
  • Take Profit Trader Challenge SimulatorFutures
  • The Trading Pit Challenge SimulatorForex & CFD
  • The Upside Funding Challenge SimulatorForex & CFD
  • The5ers Challenge SimulatorForex & CFD
  • Think Capital Challenge SimulatorForex & CFD
  • Top One Futures Challenge SimulatorFutures
  • Top One Trader Challenge SimulatorForex & CFD
  • Top Trader Prime Challenge SimulatorForex & CFD
  • Topstep Challenge SimulatorFutures
  • TradeDay Challenge SimulatorFutures
  • Tradeify Challenge SimulatorFutures
  • TradersYard Challenge SimulatorForex & CFD
  • TX3 Funding Challenge SimulatorForex & CFD
  • UProfit Trader Challenge SimulatorFutures
  • WeMasterTrade Challenge SimulatorForex & CFD
  • X-Funded Challenge SimulatorForex & CFD
  • Multi-Chart BacktestingTwo charts
  • Market Replay SoftwareThe replay

Compare

  • FX Replay alternativeFX Replay
  • TradingView Bar Replay alternativeBar Replay
  • Forex Tester alternativeForex Tester
  • MetaTrader Strategy Tester alternativeMetaTrader Strategy Tester

What's new

24 Sept 2026

Best time to trade

A free tool showing how much gold, the Nasdaq, forex and ten more markets move in every hour of the day, measured on two years of real data.

23 Sept 2026

Prop firm mode

Run any session as a funded challenge with the rules checked live, then see how your challenges went in Analytics.

22 Sept 2026

Analytics

Your equity curve, a calendar of every day you traded, and the hours and markets your edge actually works in.

16 Sept 2026

Your account and plan in the hub

Your member card, settings and plan live in the hub now, and upgrading happens right there without leaving the chart.

14 Sept 2026

The CRTLAB Hub

Markets, strategies, free tools, guides, the community board and support, all in one place. Open it from the logo on your chart.

14 Sept 2026

Support chat

Message us from inside the app and get the reply in the same chat.

Start backtesting

Pick any market and replay it candle by candle.

Open the chart
10,000 candles freeNo card to startData & charts DatabentoTradingView
CRTLAB

Replay real market history candle by candle, trade it as it forms, and find out what your strategy is actually worth.

Version
v1.11.0
Last updated
3 Nov 2026
Email us
crtlab@proton.me
Based in
United Kingdom

Product

  • Features
  • Pricing
  • FAQ
  • Prop firm simulator
  • Measured answers
  • Market recaps
  • Blog
  • Backtesting software
More
  • Market replay
  • Reference
  • Candle-by-candle replay
  • Prop firm practice
  • Two synced charts
  • Real volume

Free tools

  • Futures tick value calculator
  • Best time to trade
  • Position size calculator
  • Risk/reward calculator
  • Margin & leverage calculator
  • Pip calculator
  • Compounding calculator
  • Prop firm challenge calculator
More
  • Backtest sample size calculator
  • Profit factor calculator
  • Risk of ruin calculator
  • Fibonacci calculator
  • Pivot point calculator
  • Drawdown recovery calculator
  • Average daily range
  • CRT statistics
  • Asian range statistics
  • PDH / PDL statistics
  • FVG statistics
  • Volume profile statistics
  • Order block statistics
  • Session & kill zone times

Backtest

  • NAS100
  • US30 (Dow)
  • Gold (XAUUSD)
  • Bitcoin (BTCUSD)
  • DAX (GER40)
  • WTI crude
  • Forex
  • All markets & concepts

Strategy

  • CRT backtester
  • Footprint chart
  • SMT divergence
  • Volume profile
  • ICT backtesting
  • SMC backtesting
  • FVG backtester
  • Order block backtester
More
  • Liquidity sweep backtester
  • Market structure backtester
  • Order flow

Company

  • Log in
  • Terms
  • Privacy
  • Refunds
  • Risk disclaimer
  • Partnerships
  • Site map
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CRTLAB
© 2026 CRTLAB. All rights reserved.Not financial advice. Past results do not guarantee future results.