BacktestThe Best Free FX Replay Alternatives (2026)
FX Replay made web-based bar replay popular, but its full feature set sits behind a subscription. If you want unlimited manual backtesting without a monthly bill, here is how the field compares — including A-Backtest, which is free by design, not as a trial.
Try A-Backtest freeFeature comparison at a glance
| A-Backtest | FX Replay | TradingView replay | Desktop simulators (Forex Tester, Soft4FX) | |
|---|---|---|---|---|
| Price | Free — every feature | Free tier with limits; subscription for full use | Included in TradingView; full replay needs a paid plan | Paid license |
| Platform | Web browser (desktop + mobile) | Web browser | Web browser / apps | Windows desktop / MT4 |
| Markets | Forex, gold & silver, crypto, US indices | Forex-focused (varies by plan) | Depends on your data plan | Forex-focused |
| Order simulation with SL/TP | Yes, gap-aware fills + spread & commission | Yes | Limited — replay is chart playback first | Yes |
| Risk-based position sizing | Yes | Yes | No | Varies |
| Prop-firm challenge mode | Yes (FTMO-style rules) | Varies by plan | No | No |
| Trade journal & setup stats | Built-in, free | Yes (plan-dependent) | No | Basic reports |
| Custom timeframes | Yes, free | Plan-dependent | Paid-plan feature | Varies |
Competitor details reflect public information as of August 2026 and change over time — always check their sites. A-Backtest's column is simple to keep current: everything is free.
Why a free tool can afford to be free
A-Backtest is community-supported: the project runs on donations instead of subscriptions, so there is no incentive to lock replay depth, journals or challenge mode behind a paywall. You get the whole tool on day one — real multi-year data for forex, gold, crypto and US indices, realistic fills, risk-based sizing and a full journal.
When a paid tool still makes sense
If you need broker-connected forward testing, tick-level data for scalping research, or a specific desktop workflow, a paid simulator may fit better. For manual bar-replay backtesting in the browser — the thing FX Replay is known for — a free tool now covers the workflow end to end.
Frequently asked questions
Is A-Backtest really a full FX Replay alternative for free?
For manual bar-replay backtesting, yes: replay on all timeframes, simulated orders with SL/TP, spreads and commissions, risk sizing, a prop-firm challenge mode and a journal — all free.
What's the catch?
There isn't a pricing catch. The project is donation-supported and free for everyone. If it saves you a subscription, you can support it — but nothing is gated.
Does it cover crypto and indices too, not just forex?
Yes — BTC, ETH and other majors from Binance data, plus US30, US100 and SP500, alongside forex pairs, gold and silver.
Skip the subscription — start backtesting now
Free forever, in your browser. Your first replay session takes a minute to set up.
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