Automatic crypto trendlines
CoinBeacon fits the main support and resistance lines through a coin's swing pivots on Binance spot and futures, then validates each one by how many separate times price came back to it. Three tests or more mark a line confirmed, and every test is shown.
- Data source
- Binance spot + futures
- Confirmed at
- 3+ tests
- Statuses
- Watching · Testing · Broken · Break failed · Retest holding
- Break rule
- Closed candle + ATR margin
One support, one resistance
A chart can carry a dozen overlapping lines. CoinBeacon keeps the main support and the main resistance, ranked by quality and with near-duplicates merged.
- Validated by independent tests. Three or more separate tests mark a line confirmed; a two-test line shows as tentative. Every test is marked on the chart where it happened.
- Quality-scored. Each line is scored on its tests, how far they span the window, how tightly the pivots sit on it, and how recent the last one is.
- Fresh structure wins. Lines that price has moved away from drop in the ranking, so the levels you see describe the market now.
- Rising, falling or flat. Each line is labelled by direction, so a sloping trendline is never confused with a flat range.
SENT/USDT · Binance spot · 4h
$0.02297
Top-ranked by line quality
Break, failed break and retest
CoinBeacon tracks what price does at each line, so a real break, a failed break and a retest each get their own status.
- Testing. Price is inside the line's margin and testing it.
- Broken, on a close. A break only counts when a candle closes beyond the line past an ATR-scaled margin. A single wick never flips the status.
- Failed break flagged. If a break closes back across within a few bars, it is relabelled a failed break.
- Retest holding. Price returned to a broken line and held it: support turned resistance, or the reverse.
The five line statuses
Definitions only. The live board below shows how many lines are in each status now.
Watching
The line is fitted and graded, and price is not near it yet. Most lines on the board sit here.
Testing
Price is inside the line's margin: a test is underway, with no break yet.
Broken
A closed candle has pushed clean through the line, past an ATR-scaled margin.
Break failed
The break closed back across within a few bars.
Retest holding
Price returned, tested the flipped line and held it.
Every change between them is read on a closed candle · retest = the line flipped role and held
Why the retest is the entry.
A break tells you the level gave way. The retest tells you it flipped roles and the market accepted the new price. Pair trendlines with chart patterns and key levels to confirm it.
Trendline board
The detector fits the main support and resistance lines through a coin's swing pivots, then watches each one live. It uses the same feed as the card above: one row per coin, ranked by line quality: the strongest line on each of the top 12 coins, out of 1,780 trendlines it is tracking on Binance spot right now.
Detectors
Trendlines
Binance spot · 4h candles
Lines being tracked
confirmed at 3+ tests
Break, fail and retest are tracked on closed candles, and you can alert on any of them
The live detector, one row per coin. Open it in the app for the chart behind each line, several timeframes held at once, and an alert on the break, the failed break or the retest.
How to use trendlines in crypto trading
- 01Open the detector and pick the marketBinance spot, Binance futures or both, with USDT or BTC as the quote. The lines arrive already fitted through the coin's swing pivots.
- 02Choose the timeframe you trade15m, 1h, 4h, 1D or 1W, and you can hold several selected at the same time. A 15-minute line describes this session; a weekly line describes the trend everyone else is watching.
- 03Filter to the lines you care aboutSupport only or resistance only; rising, falling or flat; or search one coin by name. The result is ranked by quality, so the lines with the most tests and the tightest fit sit at the top.
- 04Read the status, then act on the closeEach line carries one of five statuses (watching, testing, broken, break failed or retest holding), and every change between them is decided on a closed candle rather than a wick.
Common uses
Trendline breakout trading, with the participation check
A break of falling resistance means more with buying behind it. The status turns broken on a close past an ATR-scaled margin, and a volume alert on the same pair shows whether the move had volume behind it, sent to Telegram, Discord, email or a webhook.
Rising support under a coin you already hold
The test count shows how many separate times a rising line has held. To be told the day it gives way, click the line on the chart and choose Alert me when it breaks. The same alert can also tell you when price comes back near the line, however far it has risen by then.
Spotting the failed break before you chase it
A clean-looking break that closes back across two bars later is labelled a failed break rather than quietly dropped. Momentum turning at the same line can show up first as an RSI or OBV divergence.
Trendlines as one leg of a confluence read
A trendline break together with a pattern and a volume expansion is the kind of combination Smart Setups finds across the market, with the trendline break counted as one of the confirmations.
Trendlines FAQ
- How does CoinBeacon decide a trendline is trustworthy?
- By independent tests: the separate times price came back to the line. A run of candles hugging a line counts once, a new test starts only after price has moved away, and nothing counts from a stretch where price had already traded through the line. Three tests or more marks a line 'confirmed'; a two-test line is flagged 'tentative' (two points define any line) and carried at half weight. Lines are also scored on how far their tests span the window, how tightly the pivots sit on the line, and how recent the last one is. The score is a ranking, not a probability.
- When does a trendline count as broken?
- Only when a candle closes beyond the line by more than an ATR-scaled margin, not on a single intrabar wick. If a confirmed break closes back across the line within a few bars, it is relabelled a failed break.
- How do I draw trendlines on a crypto chart automatically?
- You don't draw them; CoinBeacon fits them. The detector finds a coin's swing pivots and fits the main support and resistance lines through them, then ranks the candidates by quality and merges near-duplicates so one support and one resistance remain per chart. Open the detector, pick the market and timeframe, and the lines are already on the chart.
- Can I get an alert when a trendline breaks?
- Yes. Open the coin's chart, turn on Price action, click the line and choose Alert me when it breaks. You get one message, by Telegram, Discord, email or webhook, when a candle closes through the line, and the alert then turns itself off. The same alert can also tell you before that, when price comes within a distance you pick of the line. It works on every timeframe from 1m to 1W and needs a free account. For every new break on a watchlist or a whole exchange instead, choose Alert me on new breaks on the Trendlines board: everything one check finds arrives in one message, on 15m to 1W (a whole exchange from 4h). It can also tell you when price comes back to a line it broke (a retest) or a break reverses later.
- What is a trendline retest, and why do traders wait for it?
- A retest is price coming back to a line it has already broken and holding it: support that flipped to resistance, or the reverse. A break alone only says the level gave way; a held retest shows the roles flipped. CoinBeacon flags it as its own status, with how many bars ago the retest touch happened.
- Which exchanges and timeframes do the trendlines cover?
- Binance spot and the Binance, Bybit, OKX and Gate.io perpetual futures, with a quote-currency filter. Five timeframes are available (15m, 1h, 4h, 1D and 1W), and you can select several at once, so a line forming on the 4-hour sits beside one on the daily. Each line is drawn on one venue's own candles; it isn't a blend of exchanges.
- What's the difference between a trendline and a horizontal key level?
- A trendline slopes: it tracks a level that rises or falls with the trend, so its price changes every bar. A key level is flat: a pivot, a Fibonacci retracement, a round number or an old swing high that sits at one price. Traders use both, and the strongest reactions tend to come where a sloping line and a horizontal level meet.
- Do the trendlines repaint or change after the candle closes?
- Touches, breaks and retests are read on closed candles only, so a status doesn't flip because of an intrabar wick. A break needs a close beyond the line by more than an ATR-scaled margin, and a break that closes back across within a few bars is relabelled a failed break. The line itself is refitted as new pivots print; that is the structure updating, not a signal rewriting itself.
- Is the trendlines detector free to use?
- Yes. The free plan includes every CoinBeacon feature, the trendlines detector included, with up to 5 active alerts and 10 notifications per day. Trendlines are drawn on Binance spot and futures market data. Sign in with Google to start.
More ways to watch the market
All features →- 01Divergences: RSI, MACD & OBV divergence detection
- 02Candlestick patterns: Engulfing, hammers, stars and more
- 03Key levels: Pivots, Fibs, round numbers & prior ATH/ATL
- 04Volume analysis: Spikes, level crosses, possible exhaustion & dry-ups
- 05ATH & ATL: Drawdown from the high, distance to the low
- 06Chart patterns: Triangles, wedges, channels, flags & double tops