These platforms do not disagree about backtesting — they are doing different things and calling both backtesting. MT4 runs coded Expert Advisors against a simulated tick stream. TradingView evaluates Pine Script strategies on bar closes, and separately offers manual replay. Understanding which paradigm you are in explains most of the confusion about why results differ.
| MT4 | TradingView | |
|---|---|---|
| Language | MQL4 | Pine Script |
| Evaluation | Interpolated tick stream | Bar close |
| Real tick data | No | No |
| Manual bar-by-bar trading | No | Yes (paid tiers) |
| Data source | Your broker | TradingView's feed |
| Platform | Windows desktop | Browser, any device |
| Price | Free | Free tier / paid |
| Intraday replay on free tier | n/a | None |
Two rows carry most of the weight. MT4 cannot do manual backtesting at all — its Strategy Tester runs Expert Advisors, so a discretionary trader has nothing to use. And TradingView's free plan has no intraday bar replay, only daily and above, so a discretionary trader arriving on the free tier also has nothing to use. Both facts routinely surprise people mid-migration.
Both misrepresent reality, in different places. Knowing which distortion applies to you matters more than which platform is "better".
MT4 cannot use real tick data. It interpolates a plausible path through each one-minute bar and tests against that invented path. For a strategy whose entries and exits sit far apart, the invention is harmless. For one with tight stops, the invented path decides your results.
Pine Script strategies are evaluated when a bar closes, not continuously through it. If your stop and target both sit inside a single bar's range, the engine must apply an assumption about which came first — it did not observe the path.
How often does that actually happen? Measured across 1,911,141 EURUSD one-minute bars aggregated into 31,852 hourly bars:
| Bracket | Ambiguous bars | % of hourly bars |
|---|---|---|
| ±5 pips | 5,239 | 16.45% |
| ±10 pips | 959 | 3.01% |
| ±20 pips | 77 | 0.24% |
| ±40 pips | 3 | 0.01% |
Resolved against the underlying minute data, the stop is hit first 50.06% of the time at a 5-pip bracket — a coin flip. So a tight-stop strategy tested on hourly bars has one trade in six decided by an assumption, on either platform. The full study and the script are here.
| You want to… | Use | Why |
|---|---|---|
| Test a coded EA against your broker's data | MT4 | Same data and platform you will trade on |
| Test a coded strategy quickly and visually | TradingView | Pine Script is far faster to write than MQL4 |
| Practise discretionary trading bar by bar | TradingView (paid) or a free replay tool | MT4 cannot do it at all |
| Work on a Mac, Linux or a phone | TradingView | MT4 is Windows desktop |
| Optimise parameters across thousands of runs | Neither — use MT5 | Free, multi-core, with forward testing |
| Model spread realistically | Neither | Needs real tick data with bid/ask |
| Backtest without paying anything | MT4 (coded) or a free replay tool (manual) | TradingView's free tier has no intraday replay |
The row worth pausing on: if you are choosing between MT4 and TradingView for automated testing, the honest answer is that MT5 beats both and costs nothing. It supports real broker tick data, multi-core optimisation and built-in forward testing. The only reasons to stay on MT4 are existing MQL4 strategies and broker support.
A large share of people comparing these two want to step through history placing trades by hand. MT4 cannot, and TradingView puts it behind a paid tier.
FXAbsolute does exactly that free, in a browser, with no account: 28,412,683 one-minute bars across 15 forex, index and crypto instruments from 2021 to 2026, with drawing tools, limit orders, an automatic trade journal and live statistics. It runs anywhere TradingView does, including phones and Macs.
Its honest limits: no spread modelling, no Pine Script or MQL equivalent, no automation at all, and plainer charting than TradingView by a wide margin. It replaces the manual-practice function of these platforms and nothing else.
They test differently. MT4 runs coded Expert Advisors against ticks interpolated from one-minute bars and cannot do manual backtesting at all. TradingView evaluates Pine Script strategies on bar closes and offers manual bar replay on paid tiers. For automated testing, MetaTrader 5 beats both and is free, supporting real tick data and multi-core optimisation.
It is accurate for strategies with wide stops and unreliable for tight ones. Pine Script evaluates on bar closes, so when a stop and target both sit within one bar the engine assumes which came first. Measured on EURUSD hourly bars, 16.45% of bars were ambiguous at a 5-pip bracket but only 0.01% at 40 pips.
No. The MT4 Strategy Tester runs Expert Advisors, so it tests coded strategies rather than letting you place trades by hand. Options are the Soft4FX add-on at $109 plus tax, which covers MT4 and MT5, or a browser-based replay tool such as FXAbsolute which is free and needs no MetaTrader.
Not for intraday timeframes. As of 17 August 2026 the free Basic plan offers replay on daily timeframes and above only. Essential provides roughly six months of one-minute depth, which is the first tier usable for intraday forex practice.
Different data feeds and different evaluation models. MT4 uses your broker's history and simulates a tick path through each bar; TradingView uses its own feed and evaluates Pine Script on bar closes. Neither is wrong — they are answering slightly different questions, and the gap widens as stops tighten.
Not automatically. MQL4 and Pine Script have different primitives and different execution models — MQL4 runs against a tick stream while Pine Script evaluates on bar closes — so a strategy must be rewritten and its behaviour re-verified rather than translated.
FXAbsolute replays five years of real one-minute data bar by bar — no account, no install, no paid tier, and it runs anywhere.
Open FXAbsolute →