| A-Backtest | FXAbsolute | |
|---|---|---|
| Price | Free, funded by voluntary donations, with no paid tier | Free, with no paid tier above it |
| Instruments | Bitcoin, Ethereum and gold built in; forex by importing your own data | 15 |
| Timeframes | 6 | 10 |
| Historical data | Not stated for the built-in markets | 5 years of 1-minute bars, 2021 to 2026 |
| Indicators | 82, plus custom indicators written in JavaScript | Unlimited — every indicator, at once |
| Saved sessions | No stated limit | Unlimited |
| Trades per session | No stated limit | Unlimited |
| Account needed | No card required to start | None on a first visit; a free account from the second |
| Download needed | None — it runs in the browser | None — it runs in the browser |
Prices and limits change. Everything in the A-Backtest column was read from their own site on 10 September 2026. Check it there before you decide anything on the strength of this page.
Stated first, and plainly, because a comparison published by one of the two tools is worth nothing if it wins every row.
82 against this site’s handful, plus custom indicators in JavaScript. If you build your own studies, that is not a close call.
36, including a pitchfork. FXAbsolute has the common set and no more.
Replay from 0.5x to 10x with rewind.
A-Backtest states forex is available by importing your own data. FXAbsolute ships 15 instruments with 28.4 million one-minute Dukascopy bid bars already loaded, so there is nothing to source, clean or upload before your first session.
Ten against six.
Every study on this site publishes the SHA-256 of the exact data file behind it. You can verify the numbers rather than trust them.
FXAbsolute ships an MCP server, so Claude or another coding agent can read the same charts and run the same tests. No API key and no account.
Pick A-Backtest if you live in indicators, write your own, or mostly trade crypto and gold. Pick FXAbsolute if you trade forex and want five years of clean one-minute history to be there when you open the page, without sourcing a data file first.
Nothing, and there is no tier above it. All 15 instruments, all 10 timeframes, every indicator and drawing tool, unlimited sessions, unlimited trades, the journal and the full analytics, at no cost and with no card. Your first visit asks for nothing at all; from the second you are asked for a free account, which unlocks nothing because nothing is locked — it exists so a returning trader can be reached.
Yes, as checked on 10 September 2026. Their site states that starting, learning and using it are free, with no paid tier and no ads, funded by voluntary donations.
FXAbsolute, on the data question alone. A-Backtest lists Bitcoin, Ethereum and gold as built in and describes forex as available through importing your own data. FXAbsolute ships fifteen instruments with five years of one-minute history already loaded.
A-Backtest, by a wide margin: 82 plus custom JavaScript indicators, against a small standard set here. If your method depends on an unusual study, that is the stronger tool.
Neither asks for one to start. FXAbsolute asks for a free account from your second visit; it unlocks nothing, because nothing is locked.