If this is you
Choose Forex Tester
You want a full backtester: tick data with simulated costs, up to 10 synced charts, robots next to manual trades, blind testing, and a prop firm simulator with an optimizer.
Forex Tester vs TradingView Bar Replay
Forex Tester vs TradingView Bar Replay: which to backtest with
Forex Tester Online and TradingView Bar Replay both step history forward candle by candle. Forex Tester is built to backtest: orders fill on tick data, with spreads, swaps and commissions simulated. Bar Replay is a charting feature, and its orders fill on real time data. BacktestFlow goes deep on forex: every trade recorded, every finding checked for significance.
5rows Forex Tester leads
3rows TradingView Bar Replay leads
4rows BacktestFlow leads both
The difference that decides it
A backtester and a replay feature.
Forex Tester's own plan table lists “True backtesting, not bar replay” as a feature. The two tools sit on either side of that line.
On Forex Tester Online, an order fills on the simulated history. Candles are formed from tick data, and spreads, swaps and commissions are simulated. Trades and notes stay in the backtest project, with tags, screenshots, checklists and a confidence level on each one.
TradingView Bar Replay moves the chart into the past, but not the order panel. Its documentation says orders during replay “are executed using real-time data, including those in Paper Trading”. It keeps no trade record, so the spreadsheet is yours to keep.
So Forex Tester leads most rows about testing: fills, costs, robots and the prop firm simulator. Bar Replay leads where TradingView leads as a platform: market coverage, Pine Script® and replay below one minute.
BacktestFlow sits on the testing side too, built for forex traded by hand. Orders fill on the replayed candles, and the replay waits until every trade is recorded. Our Forex Tester alternative and Bar Replay alternative pages go row by row.
Side by side
Feature by feature. Where one tool leads, its cell is marked: 5 rows for Forex Tester, 3 for TradingView Bar Replay, 4 for BacktestFlow. BacktestFlow is the last column, for reference.
| Feature | Forex Tester | TradingView Bar Replay | BacktestFlow |
|---|---|---|---|
| What it is | A backtesting platform for manual and algorithmic strategies, in the browser, with a desktop version | A replay feature inside a charting platform | A replay backtester for forex, with its own statistics and a separate journal for live trades |
| Where orders fill | LeadsOn the simulated history, with spreads, swaps and commissions simulated | TradingView's documentation: “Trading orders are executed using real-time data, including those in Paper Trading” | On the replayed candles. Market, stop and limit orders; entry, stop and target dragged on the chart; partial closes; sizing by risk % or by lots |
| Trade record | Trades and notes kept in the backtest project, with tags, screenshots, checklists and a confidence level | None. You keep the record yourself | LeadsEvery close opens a write up with notes, tags, checklist and screenshots, and the replay waits until it is saved |
| Findings and coaching | Data driven recommendations, a Trade Analyzer, and analysis of which sessions and market conditions work best | None from Bar Replay | LeadsFlow Coach runs 28 analyses. A finding is kept only if it passes a significance check, and a report may only quote numbers the engine measured. On the Max plan every report, on the others the first per strategy and lens |
| Execution metrics | Tracks whether your higher confidence trades actually perform better | None: Bar Replay keeps no trade record to measure | LeadsPlanned against captured R:R, target hit rate and position sizing consistency on every plan; the checklist discipline score on paid plans |
| Forex specific analysis | Session analysis, across forex, stocks, futures and ETFs | Not applicable | LeadsStatistics in pips, candles on the DST aware 17:00 New York session grid, and on paid plans, performance by trading session |
| Price data | LeadsTick by tick data that forms each candle | Bar based: the documentation says Bar Replay “does not work with … tick-based charts” | 1 minute OHLC candles from bid prices; no tick data and no spread modeling |
| Data below one minute | None: 1 minute is the smallest; its FAQ says second based timeframes are planned | LeadsSecond based bars, from August 17, 2022 | None: one minute is the smallest |
| Forex minute history | Up to 23 years depending on the asset: EURUSD, GBPUSD, USDJPY and gold from May 6, 2003 | EURUSD one minute data from November 28, 2001; how far back you can replay intraday depends on your plan | Forex from 2010 to 2015 depending on pair: GBPUSD and AUDUSD from 2010, EURUSD from 2012. Gold from 2011 |
| Markets | 283 assets: 112 currency pairs plus commodities, indices, stocks, futures, ETFs and crypto | LeadsEffectively everything TradingView lists | 41 instruments on paid plans, forex first: 28 pairs plus metals, energy, the dollar index, four stock indices, BTC and ETH. The free plan has 8 of them |
| Several charts at once | Up to 10 synced charts, across different symbols and timeframes | All charts in a layout replay in sync, across symbols and timeframes | One instrument per session |
| Moving through history | LeadsJumps to indicator crossovers, level touches, session opens and news events, with a blind mode that hides the instrument and dates | Step forward, or choose a new starting bar during replay; a step back control is not described | Each session starts on a date you pick. Fast forward runs the replay to the next Sydney, Tokyo, London or New York open, or to a time of day, and stops early on a fill, stop or target. On the Max plan, rewind steps back 1 to 50 candles |
| Coded strategies | LeadsBacktests trading robots, and portfolios that mix robots with discretionary trading | Not covered by the Bar Replay documentation | Manual by design: every trade is placed by hand |
| Custom indicators | 95 built in indicators, plus custom indicators you create and upload | LeadsPine Script® and TradingView's community library | TradingView Charting Library indicators and drawings, plus built in Session and TDI studies. On the Max plan, a developer rebuilds your Pine Script® indicators by hand |
| Prop firm challenges | LeadsProp Firm Simulator: account size, profit target, daily and total drawdown and minimum days, with an optimizer | Not part of Bar Replay | On paid plans, a challenge mode: profit target, daily and max drawdown on equity, open positions included, and a locked Passed or Failed result |
| Trying it | A free demo, no credit card required | Usable on TradingView's free tier; intraday replay depth depends on your plan | A free plan, no credit card: the replay, the full trade record and the Verdict and Edge statistics on 8 instruments |
The short answer
Which should you use?
If this is you
Choose TradingView Bar Replay
You already chart on TradingView and want to practice reading price across any market with your own Pine Script®. You are happy to keep the trade record yourself.
If this is you
The forex specialist: BacktestFlow
You trade forex by hand and want two answers: whether the strategy has an edge, and whether you followed it. Every trade is recorded before the replay moves on, and execution is measured on every plan.
FAQ
Frequently asked questions. About Forex Tester, TradingView Bar Replay, and the differences.
For backtesting, yes. Forex Tester Online fills orders on simulated history, forms candles from tick data and simulates spreads, swaps and commissions. TradingView Bar Replay fills orders on real time data and keeps no trade record. TradingView leads on charting, markets and Pine Script®; Forex Tester leads on testing.
You can replay charts on TradingView's free tier, but how far back intraday replay goes depends on your plan. Bar Replay records nothing, so a free backtest there means logging every trade in a spreadsheet. Forex Tester offers a free demo with no credit card. BacktestFlow has a free plan, with replay and the full trade record.
It depends on what you test. Bar Replay is bar based: its documentation says it does not work with tick based charts, and orders fill on real time data. Forex Tester Online forms each candle from tick data. For strategies on 15 minute charts and above, one minute candles are usually enough, as long as fills happen on the replayed bars.
On forex minute data they are close. TradingView lists EURUSD one minute data from November 28, 2001. Forex Tester lists EURUSD, GBPUSD, USDJPY and gold from May 6, 2003, with tick data behind each candle. Below one minute, TradingView's second based bars start on August 17, 2022, while Forex Tester's smallest timeframe is 1 minute.
Yes. Forex Tester Online runs in any browser, on desktop and mobile, with nothing to install. A separate desktop version works without an internet connection. Bar Replay runs inside TradingView itself. BacktestFlow runs in the browser too, the same on macOS, Windows and Linux.
Forex Tester goes wide on data and method, Bar Replay across every market TradingView lists. BacktestFlow goes deep on forex execution. Orders fill on the replayed candles, the replay waits until every trade is recorded, and Flow Coach keeps a finding only if it passes a significance check. On paid plans, results break down by trading session.
Sources
Check it yourself. Every claim about Forex Tester and TradingView Bar Replay on this page was checked against their own published material in November 2026.
- Forex Tester Online, product site (features, asset list, plan table, FAQ)
- Forex Tester Online, prop firm challenge simulator
- Forex Tester Desktop, product site
- TradingView, Bar Replay: how and why to test a strategy in the past (official documentation)
We quote no prices: they change often, so check them at the source. Software changes too, so if something here is out of date, it is an error rather than a position, and it gets corrected.
BacktestFlow is not affiliated with, endorsed by, or sponsored by Forex Tester or TradingView. Forex Tester is a trademark of its respective owner; TradingView and Pine Script® are trademarks of TradingView, Inc. BacktestFlow is built with the TradingView Charting Library. Forex Tester's site blocks automated access, so its claims were checked by hand in a browser. Features change: verify current details at the source.