A 100% Free Replay Trading Tool I Built for Practice

Advanced charting

1. Unlimited indicators on the chart
2. Custom timeframes: type anything like 2m, 6m, 23m, 2h…
3. High-resolution chart screenshots for review and journaling

Multi-chart layouts

1. Multiple layouts (1x2, 2x2, 3x3…)
2. Sync timeframes and drawings across charts
3. Fullscreen chart mode for focus

Replay mode

1. Full historical data replay – backtest from the earliest available data
2. Practice on complete market history, not just limited ranges
3. Speed control: 1x, 2x, 5x, 10x
4. Jump to any point in history
5. Future candles hidden (bar replay style)
6. Visual replay range selection

Trading simulation inside replay

1. Place BUY / SELL orders like a real broker
2. Multiple positions at the same time (hedging supported)
3. Real-time margin, equity, free margin, margin level
4. Real spreads, commissions, and swaps (Wednesday triple swap)
5. Automatic margin call & stop out
6. Sessions are saved and can be resumed anytime

Supported markets

1. Crypto: Binance (200+ USDT pairs)
2. Forex: FXCM (majors & minors)
3. Futures: CME (ES, NQ)

Alerts & watchlists

1. Price alerts (cross above/below, greater/less than)
2. Notifications via Telegram and in-app real time
3. Real-time watchlists with % change like TradingView
4. Share watchlists via public links

The whole point of Beaveron is simple:
give traders a realistic replay environment to practice properly, without paying a crazy monthly fee.

The platform is still actively being improved, and I’m genuinely open to any feedback or suggestions from you guys.
If there’s something missing, annoying, or that could be done better, feel free to say it straight.

1. Chat box for all user
2. Fix bug

Next version you guys can add custom indicators by PineJS code

1. Added support for custom indicators
2. Fixed faster chart loading
3. Bug fixes
4. Documentation for PineJS custom indicators: Market Lab (https://marketlab.cloud/docs/custom-indicators)

Statistics:

1. Total users: 216
2. Daily active users: increasing day by day, averaging around 110 users per day (both new and returning)
3. Average backtesting time per user: 16 minutes

Overall, things are looking pretty good

1. Onboarding for new user
2. Toast notification
3. new symbol USOIL, UKOIL, US30
4. Limit order on simulator mode
5. update custom indicator document and log view when code
6. Shortcut on multiple chart Alt + left click for fullscreen
7. Update UI UX for mobile
8. Fix bug

Statistics:

1. We will no longer track logged-in users, because many users use the website normally without logging in.
2. A total of 1.9k users since Feb 14, with an average session time of 16 minutes (which is very good).
3. Around 120 users visit daily. Reddit banned us, then the number of new users dropped significantly, but the good news is that traffic from ChatGPT has started coming in and is increasing quickly every day. Users from ChatGPT are even higher quality than those from Google.

Can anyone give me advice on marketing on Reddit? I’d appreciate it.

1. Fix custom timeframe spread in replay mode
2. Fix symbol with season candle
3. Fix trade and chat tab bug on mobile UI
4. Add position size calculator tool
5. Add order line in simulator backtest and calculate position size
6. Add custom indicators: Trading Sessions, ICT Killzone
7. Fix save layout
8. Fix bugs

Statistics:

1. Yesterday the site hit 400 users in a single day, while the normal level is around 200. Weekends will probably have more users. It also means any updates should be done during weekdays, because people usually use the weekend to backtest.
2. The next issue is the server. Since hardware component prices have increased, VPS providers also raised their prices. At this rate, we will probably need to upgrade the server soon.
3. User traffic from Google is still ranked #1. Traffic from ChatGPT during the week is fairly stable, but it increases significantly on weekends. I also noticed a few users coming from Perplexity AI, although for now it’s only about 2 users.
4. Since we started tracking the data, the site has had about 3.5k total users. Real users are probably around half of that, because as mentioned before, users don't need to log in to backtest.
5. The average session time has increased to nearly 18 minutes. This is actually more important, because it shows the website is retaining users better.
6. Looking at users by country, Vietnam still has the most users. But if we look by region, the EU is the largest, although users there are spread across many countries rather than concentrated in one.

1. pivot point, top central pivot, bottom central pivot, PDL, PDH, R1, S1, R2, S2 on 15 mins time frame.
2. pivot point, top central pivot, bottom central pivot, PWL, PWH, R1, S1, R2, S2 on 30 mins - 4h time frame, and daily time frame monthly pivots with the same logic.
3. plus I also use initial balance. (can be ignored)

these levels will be calculated from prev days/week/month OHLC.

I am building a custom pivot indicator. I need to draw horizontal lines that reset at the start of each new trading session (day/week/month).

The following do NOT work for me:

1. PineJS.Std.period/time/dayofmonth/month/year(ctx) — always returns 0
2. new_var(value).get(N) — throws get is not a function
3. change() on alternate symbol series — always returns non-zero, breaking every bar
4. this._prev* manual history — main() appears to only run once on the last bar for console.log purposes

My specific questions:

1. How do I detect when a new trading day starts on a 5min chart so I can return NaN on that bar to break/reset a horizontal line?
2. Is there a working example of a pivot indicator that draws flat lines resetting each session?
3. Why do dayofmonth(), month(), year() and time() always return 0 in my script?
4. Is new_var().get(N) supposed to work for accessing previous bar values? It throws TypeError: get is not a function in my environment.
5. What is the correct way to access the previous bar's value in a custom indicator script?

Appreciate your views on this.

Thank you.

var barTime = PineJS.Std.time(this._context);
var d = new Date(barTime);
var dayOfMonth = d.getUTCDate();      // 1-31
var month      = d.getUTCMonth();     // 0-11
var year       = d.getUTCFullYear();  // 2024
var dayOfWeek  = d.getUTCDay();       // 0=Sun, 1=Mon...
var hours      = d.getUTCHours();
var minutes    = d.getUTCMinutes();

var close = PineJS.Std.close(this._context);
var closeSeries = this._context.new_var(close);
var prevClose = closeSeries.get(1);  // previous bar's close

console.log("bar time:", PineJS.Std.time(this._context), "close:", PineJS.Std.close(this._context));

this.main = function(context, inputCallback) {
    this._context = context;
    this._input = inputCallback;
    var PineJS = __PineJS;
    var barTime = PineJS.Std.time(this._context);
    var d = new Date(barTime);
    var currentDay = d.getUTCDate();
    var high  = PineJS.Std.high(this._context);
    var low   = PineJS.Std.low(this._context);
    var close = PineJS.Std.close(this._context);
    var open  = PineJS.Std.open(this._context);
    // Initialize state
    if (!this._pvt) {
        this._pvt = {
            prevDay: currentDay,
            dayHigh: high, dayLow: low, dayOpen: open, dayClose: close,
            pivot: NaN, tc: NaN, bc: NaN, r1: NaN, s1: NaN
        };
    }
    // Detect new day
    if (currentDay !== this._pvt.prevDay) {
        // Calculate pivots from PREVIOUS day's OHLC
        var pH = this._pvt.dayHigh;
        var pL = this._pvt.dayLow;
        var pC = this._pvt.dayClose;
        var pp = (pH + pL + pC) / 3;
        this._pvt.pivot = pp;
        this._pvt.tc = (pp - pL) + pp;      // Top Central Pivot
        this._pvt.bc = pp - (pH - pp);       // Bottom Central Pivot
        this._pvt.r1 = 2 * pp - pL;
        this._pvt.s1 = 2 * pp - pH;
        // Reset day tracking
        this._pvt.dayHigh = high;
        this._pvt.dayLow = low;
        this._pvt.dayOpen = open;
        this._pvt.prevDay = currentDay;
    } else {
        // Update running high/low
        this._pvt.dayHigh = Math.max(this._pvt.dayHigh, high);
        this._pvt.dayLow  = Math.min(this._pvt.dayLow, low);
    }
    this._pvt.dayClose = close;
    return [this._pvt.pivot, this._pvt.tc, this._pvt.bc, this._pvt.r1, this._pvt.s1];
};

1. Supertrend — persistent state pattern (this._st) + dynamic calculations per bar
2. Buy/Sell Signals — new_var().get(1) for previous bar lookback
3. OHLC Range Demo — accessing all OHLC values + previous bars

Also download the PineJS Reference from the docs page — Section 10 has complete working examples.
Hope this helps!

1. Now you can simulator crypto line on exchange and broker
2. Add more symbol AUDCAD, AUDNZD, AUDJPY, CADJPY, EURAUD, EURCAD, EURNZD, GBPAUD, GBPCAD
3. fix save layout
4. fix gap candle
5. fix bug

Statistics:

1. Total users have reached 5.4k.
2. DAU (Daily Active Users) has returned to 250.
3. The average session duration has increased to 18 minutes and 22 seconds.
4. Google and ChatGPT have been heavily throttled this week.

1. Update V2 of the custom indicator documentation, adding more examples and reducing errors when converting from Pine Script to PineJS.
2. fix UI
3. fix bugs

Statistics:

1. Total users: 7.5k
2. Total logged-in users: 962, but many users are still using the platform without logging in
3. DAU increased to 300, with a peak of 377 DAU on Saturday
4. Average session duration increased to 19 minutes 26 seconds

1. Improved security and refactored code to enhance performance
2. Added crosshair synchronization feature
3. Enabled saving layouts for multiple chart panes
4. Added custom indicators:
   1. VSA Volume by skyline-trader
   2. Gann Swing Chart [One-bar] by meomeo105
   3. Calculate Target by Range [Wyckoff, PnF] by meomeo105
   4. BTC Risk Metric by Skywalking2874
   5. Session by luxAlgo

5. Updated documentation to v3 to help AI generate better scripts
6. Fixed replay issues when using timezones other than UTC+0

Statistics:

1. Total visits: 11k
2. Total logged-in users: 1259, but many users are still using the platform without logging in
3. DAU increased to 450
4. Average session duration increased to 19 minutes 37 seconds
5. Telegram group chats are more active and better for building a community in the future.
6. Traders have expressed that they really like the platform and are interested in donating and subscribing
7. My goal is to build a learning platform for all traders, with no cost barriers, where the community supports each other and grows together
8. I’m always open to all feedback, big or small, to improve the platform, so feel free to message me anytime

1. New feature: session history
2. New feature: templates for drawing tools
3. New feature: favorite watchlist
4. Added custom indicator: Volume Bubbles by BigBeluga
5. Fixed limit order
6. UI improvements
7. Bug fixes

Statistics:

1. Total visits: 14k
2. Total logged-in users: 1,495 (however, many users are still using the platform without logging in)
3. DAU increased to an average of 550
4. Average session duration: 19 minutes 19 seconds

Next Direction:

1. DAU increased this week, but total usage time dropped significantly, pulling down the average session duration, clearly a negative signal that needs to be addressed
2. The first issue identified is building features too quickly while the platform still has frequent minor bugs, causing users to lose patience. Many bugs have been reported over the past 2 weeks, especially this week
3. New user growth did not meet expectations, SEO does not seem suitable for a new project, and data suggests a pivot should have been made since mid-March, about one month was wasted
4. Too much focus was placed on building features instead of distribution, a clear mistake. Fortunately, users like the product and share it, so the platform is still growing
5. In the next 2 weeks, stop building new features and focus on fixing small bugs and improving platform stability
6. Also shift more focus to distribution through channels like YouTube and community groups, collect more data to identify which channels are effective and which should be dropped. SEO will still be optimized but not heavily prioritized as it is a long-term strategy
7. Recently started reading books on distribution, retention, and data analysis, focusing on applying insights immediately
8. Development time will be reduced, with a 50:50 balance between marketing and product development moving forward

1. New symbol DXY, VIX, USDSEK, UK100, GER30, JPN225, COPPER
2. Add hotkey for replay mode
3. Allow backtest trade session with NQ, ES from CME
4. Fix minimum lot size
5. Fix bug

Statistics:

1. Total visits: 19k
2. Total logged-in users: 1894
3. DAU increased to 650
4. Average session duration increased to 18 minutes 51 seconds

Next Direction:

1. Review policies for data sources and libraries before using them for commercial purposes
2. Redesign the branding to make it more polished
3. Open donations

1. Rebrand the platform to Beaveron
2. Upgrade the server
3. Add symbol comparison feature
4. Update documentation for custom indicators
5. Add symbols: XLMUSDT, ARBUSDT, LINKUSDT
6. Add perpetual futures: BTCUSDT.P
7. Add more custom indicators
8. Fix bugs

Statistics:

1. Total visits: 25k
2. Total logged-in users: 2289
3. DAU increased to 800
4. Average session duration increased to 18 minutes 39 seconds