Blindgrade
Chart replay with the ticker and dates hidden. You can't recall the answer, so the grade is what you did with the tape. Free daily chart to start.
Chart replay with the ticker and dates hidden. You can't recall the answer, so the grade is what you did with the tape. Free daily chart to start.
This page is designed to help you find out whether Blindgrade is good and if it is the right choice for you.
Blindgrade is chart replay practice with the ticker and dates taken off. You get a real historical chart, trade it with paper money as the candles play out, and get graded on what you did: entry, size, where the stop went. Then the reveal shows what the chart was.
Why blind: a replay on a chart you can identify tests your memory, not your reading. If you know it's Bitcoin in March 2020, you know the crash is coming. Hide the labels and the only thing left to trade is what is on the screen.
A live AI mentor watches you trade. When you make a habit-level mistake, such as a naked entry after a spike or a stop under no structure, it marks the chart and says one line about it while the candles are still playing. It sees only what you see, every number it quotes is measured by the engine, and it never tells you which way to trade.
Free: one daily chart for everyone, no account needed, and 15 practice rounds a week with a free account (the mentor on 3 of them). Pro, $79 a year: unlimited practice, the mentor on every round, replay any symbol from any date (blind or not), full analytics. Crypto today; forex next.
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Blindgrade hides the ticker and the dates on every replay. On other replay tools you pick the chart, so you often know how it ends: if it's Bitcoin in March 2020, you know the crash is coming. On Blindgrade you trade real historical candles without knowing what they are, so the only thing you can trade is what's on the screen. Each round is graded on your process: entry, size and where the stop went, not just profit. A live AI mentor marks habit-level mistakes on the chart while the candles are still playing. It sees only what you see and never tells you which way to trade.
Replay tools like FX Replay and TradingView's Bar Replay are good for backtesting a strategy on a chart you choose. Blindgrade is for practising the decision itself, without hindsight to lean on. It runs in the browser with no install. The daily chart needs no account. A free account gets 15 practice rounds a week, with the AI mentor on 3 of them. Pro is $79 a year, less than most replay subscriptions charge for a few months. It adds unlimited practice, the mentor on every round, replay of any symbol from any date (blind or not), and full analytics.
Newer and intermediate traders who want to get better at trading without risking money. Most are crypto traders who have watched tutorials and want repetitions with feedback before they trade live. It also suits experienced traders who use replay tools and want to check whether their reads hold up when they can't recognise the chart.
Blindgrade is built by a solo developer and trader. Practising on replay kept running into the same problem: on a chart you can identify, you already half-know the ending, so a good trade proves nothing. Blindgrade started as a daily mystery chart, the same hidden chart for everyone each day, in the style of Wordle. Practice rounds came next, then grading on process, then a live AI mentor. It has been in public beta since September 2026.
TypeScript, React, KlineCharts for the charts, Node.js with Fastify, and PostgreSQL. The live AI mentor runs on large language models. Every number it quotes is measured by Blindgrade's own trading engine, not written by the model
We have collected here some useful links to help you find out if Blindgrade is good.
Check the traffic stats of Blindgrade on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Blindgrade on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Blindgrade's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Blindgrade on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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