What is Fibonacci Retracement?
Fibonacci retracement is one of the most widely used technical analysis tools in trading. It uses horizontal lines to indicate potential support and resistance levels based on the Fibonacci sequence, a mathematical pattern found throughout nature and financial markets. The key Fibonacci ratios (23.6%, 38.2%, 50%, 61.8%, and 78.6%) are derived from relationships within this sequence and help traders identify where price may pause or reverse during a trend.
Our free Fibonacci retracement visualizer allows you to calculate these critical levels instantly. Simply enter your swing high and swing low prices, or upload historical price data in CSV or JSON format. The tool automatically calculates all retracement levels and optional extension levels, displaying them on an interactive chart for easy analysis.
How to Use This Fibonacci Visualizer
- 1
Identify the Trend
Select whether you're analyzing a bullish (uptrend) or bearish (downtrend) move. This determines how the Fibonacci levels are calculated and displayed.
- 2
Enter Price Range
Input the swing high and swing low prices manually, or upload a CSV/JSON file with your price data. The tool will auto-detect the range from uploaded data.
- 3
View Retracement Levels
The chart instantly displays all key Fibonacci retracement levels (0%, 23.6%, 38.2%, 50%, 61.8%, 78.6%, 100%) with their corresponding prices.
- 4
Enable Extension Levels
Toggle on extension levels (127.2%, 161.8%, 200%, 261.8%) to identify potential profit targets beyond the original price range.
- 5
Save Your Analysis
Click "Save to Browser" to store your current settings and price data in localStorage. Your analysis will be restored when you return.
Understanding Fibonacci Levels
| Level | Significance | Trading Application |
|---|---|---|
| 0% / 100% | Swing high/low boundaries | Defines the measured move |
| 23.6% | Shallow retracement | Strong trends often bounce here |
| 38.2% | Moderate retracement | Common pullback level in trends |
| 50% | Psychological midpoint | Not a Fibonacci ratio but widely watched |
| 61.8% | Golden ratio (most important) | Key reversal zone, high probability |
| 78.6% | Deep retracement | Last defense before trend reversal |
| 127.2% - 261.8% | Extension levels | Profit targets beyond the swing |
Why Use Our Fibonacci Visualizer?
Instant Calculation
Get all 7 retracement and 4 extension levels calculated instantly as you type or upload data.
Interactive Chart
Visualize Fibonacci levels overlaid on your price data with color-coded lines for easy identification.
Flexible Data Import
Upload CSV or JSON files from any broker or data provider. Auto-detects high, low, and trend direction.
Save Your Work
Store your analysis in browser localStorage. Your settings and data persist between sessions.
Privacy Protected
All calculations happen in your browser. Your trading data never leaves your device.
100% Free Forever
No hidden fees, no subscriptions, no registration required. Use it as much as you want.
Fibonacci Trading Strategies
Fibonacci retracement levels are most effective when combined with other technical analysis tools. Here are some popular strategies traders use with Fibonacci levels:
1. Fibonacci + Trend Lines
Draw trend lines connecting swing highs or lows. When a Fibonacci level coincides with a trend line, it creates a "confluence zone" with higher probability of price reaction.
2. Fibonacci + Moving Averages
Look for Fibonacci levels that align with key moving averages (50 EMA, 200 SMA). These confluences often act as strong support or resistance zones.
3. Fibonacci + Candlestick Patterns
Wait for reversal candlestick patterns (doji, engulfing, hammer) at Fibonacci levels before entering trades. This confirms price rejection at the level.
4. Multiple Time Frame Fibonacci
Draw Fibonacci levels on multiple time frames. When levels from different time frames cluster together, they create high-probability trading zones.