Why keep a trading journal
A trading journal is a record of every trade you take, kept in one place, in the same format every time. Instrument, direction, entry, exit, size, and what you were thinking when you took it. That sounds simple, and it is. The value isn't in any single entry. It's in what a full, honest record of many trades tells you that memory alone cannot.
Most traders remember their biggest wins vividly and let their small losses blur together. That's not a character flaw, it's just how memory works under any kind of emotional weight. The problem is that a trading record built from memory is quietly wrong in a specific direction: it always looks better than the real thing. A journal is the fix, because it doesn't forget anything, including the trades you'd rather not think about.
Why logging every trade matters
A journal is only as useful as it is complete. If you log the trades you're proud of and skip the ones that went badly, every number that comes out of it — win rate, average R, net P&L — is inflated. The discipline is logging the trade the moment it closes, win or lose, before you've had time to decide it doesn't count.
R multiple: judging by what you risked
P&L tells you how much money a trade made or lost. A trade risking 50 to make 100 and a trade risking 500 to make 100 have identical P&L but are not remotely the same trade. R multiple normalizes the result against the risk and lets you compare a stock trade to a forex trade on one consistent scale.
Frequently asked questions
What is a trading journal for?
It's a record of every trade you take: what you traded, the direction, your entry and exit, and what you were thinking. Most traders remember their big wins and forget their small losses, so their sense of how they're actually doing drifts away from reality. A journal fixes that. Logging every trade, not just the interesting ones, is what makes the record trustworthy.
Why does logging every trade matter more than most traders think?
Because a partial record lies. If you only log the trades you're proud of, your win rate and average R multiple both come out better than your real performance. The value of a journal is statistical: it takes a real sample size to see whether a setup actually works, and a sample missing your losses isn't a real sample.
What is R multiple and why use it instead of just P&L?
R multiple is your profit or loss measured against what you risked, not against a currency amount. A trade risking 50 that makes 100 is a 2R win. A trade risking 500 that makes 100 is only 0.2R, even though the profit in currency is identical. P&L alone can't tell those two trades apart, and they are not the same trade. R multiple is what lets you compare a stock trade to a forex trade to a commodity trade on one consistent scale.
Does this work for forex and commodities, or only stocks?
All three, as one tool. The instrument field is free text, so you can log RELIANCE, EUR/USD, or Gold the same way. Entry, exit, size, and stop loss are just numbers. The math behind P&L and R multiple doesn't care what market they came from.
Where is my data stored?
In your browser's local storage, on this device only. There's no account, no sign-in, and nothing is sent to a server. That also means the data doesn't sync between devices or browsers on its own.
What happens if I clear my browser data?
Your journal is gone unless you've exported a backup. Local storage is tied to this browser on this device, so clearing site data, using a different browser, or switching devices all start a fresh, empty journal. Export a backup regularly if the record matters to you, and use Import backup to load it back in.
What's the difference between Export CSV and Export backup?
Export CSV is for spreadsheets. It's one-way: opening it in Excel or Sheets is the point, and it was never meant to load back into this tool. Export backup is a separate file, in a different format, built specifically to be re-imported. If you clear your browser, switch devices, or just want a safety copy, export a backup and use Import backup to bring it back exactly as it was.
Does this tool give trading advice or signals?
No. This is a logging tool, not an advisor. It records the trades you already made and calculates the numbers that follow directly from what you entered: P&L, R multiple, win rate. It doesn't recommend a trade, flag an opportunity, or tell you what to do next.