Free Online OHLC Chart Maker

Show Open-High-Low-Close data with bar ticks. A cleaner alternative to candlesticks.

Built & maintained by the ChartLoad editorial team

What Is a OHLC Chart?

An OHLC chart (Open-High-Low-Close) represents each trading period with a vertical line spanning the high-to-low range and two short horizontal ticks — the left tick marks the opening price and the right tick marks the closing price. It conveys exactly the same four data points as a candlestick chart but in a lighter, less ink-heavy style.

OHLC bars are the traditional notation used on trading floors before candlestick charts became mainstream. Key components include the vertical range bars, the open and close tick marks, color coding for bullish vs bearish periods, a time-based X-axis, and a price Y-axis. The minimalist design makes OHLC charts easier to read when many bars are packed tightly together.

What Data You Need for a OHLC Chart

An OHLC chart needs five columns per row: a timestamp plus the four prices in Open, High, Low, Close order, where High is the period's max and Low its min. Example: `2026-03-14,427.10,431.55,425.80,430.20` — one row per trading bar (daily, hourly, or 5-minute).

When to Use a OHLC Chart

Use an OHLC chart when you want to display price action data in a clean, minimalist style without the visual weight of candlestick bodies. OHLC charts are favored by professional traders and quantitative analysts who need to scan long time series quickly.

Common use cases include stock price analysis, forex pair tracking, commodity futures visualization, and cryptocurrency market review. Choose OHLC over candlesticks when chart density is high and you want less visual clutter. Choose candlesticks when your audience expects pattern-recognition cues like hammer or doji shapes. Both show identical data — the choice is purely stylistic.

Where a OHLC Chart Works Best

Comparing the open against the prior close to spot overnight gaps — something a close-only line chart hides entirely.
Scanning hundreds of daily bars in a long backtest window where candlestick bodies would smear into solid blocks; OHLC's thin ticks stay legible packed tight.
Building entry rules that trigger on a break above the previous bar's high tick, where the exact intra-bar high matters more than the close.
Presenting forex or futures price action to a quant audience that prefers the traditional low-ink bar notation over decorative candle bodies.

OHLC Chart Example: Earnings-week gap analysis

A swing trader charts a semiconductor stock across the four sessions around its quarterly earnings to see how the post-report gap held up. Daily OHLC bars let them read the exact open versus the prior close, not just the closing line.

Sample data: Tue 427.10/431.55/425.80/430.20; Wed 429.90/433.10/428.40/432.70; Thu(earnings) 451.00/458.30/448.60/449.20; Fri 449.80/452.40/441.10/443.50

Thursday's open gaps up ~18 points over Wednesday's close but the long upper-to-lower span and close back near the open shows the gap was sold into; Friday's lower close confirms the post-earnings pop faded rather than trended.

How to Create a OHLC Chart Online

Step 1: Open ChartLoad and select the OHLC Chart type from the chart picker on the main page
Step 2: Enter your data with columns for Date, Open, High, Low, and Close in the data editor
Step 3: ChartLoad renders each period as a vertical bar with left tick for open and right tick for close
Step 4: Color coding automatically highlights bullish periods in green and bearish periods in red
Step 5: Customize the time axis, price scale, gridlines, and add moving-average overlays for deeper analysis
Step 6: Click Export and download your OHLC chart as PNG, PDF, SVG, JPEG, or WebP

OHLC Chart Best Practices & Tips

OHLC bars use less ink than candlesticks, making them better for dense time series with many data points.
The left tick is the open and the right tick is the close — remind your audience of this convention in the legend.
Color bullish bars green and bearish bars red, just as you would with candlestick charts.
OHLC charts pack more bars per screen than candlesticks, which is useful for scanning longer time ranges.
Overlay a simple moving average on your OHLC chart to quickly assess the broader trend direction.
OHLC charts are preferred by technical analysts who prioritize data density over candlestick pattern aesthetics.

Common OHLC Chart Mistakes to Avoid

Listing the four prices out of order — the renderer expects Open, High, Low, Close, so feeding High,Low,Open,Close puts ticks on the wrong side and flips every up/down bar.
Supplying a High that isn't the row's maximum (or a Low that isn't the minimum), e.g. High 431.55 with a Close of 432.70 — the vertical range bar can't span past its endpoints and draws truncated or inverted.
Reading the right tick as the open. The convention is left=open, right=close; readers fluent in candlesticks often invert it, mistaking a down bar for an up one.
Plotting closed days (weekends, holidays) as evenly spaced bars, which stretches gaps across non-trading time and makes a Friday-to-Monday move look like a slow drift instead of a gap.

Frequently Asked Questions

What is the difference between OHLC and candlestick?

Both show the same data. OHLC uses tick marks, candlesticks use filled/hollow bodies. Choose based on preference.

Which is more popular?

Candlesticks are more popular in modern trading. OHLC is traditional and preferred by some analysts.

How do I import stock data into an OHLC chart?

Copy your OHLC data from a spreadsheet, broker platform, or CSV file and paste it directly into ChartLoad. Columns should be Date, Open, High, Low, Close.

Related Chart Types

Ready-Made OHLC Chart Templates

Skip the blank canvas — open a free, editable OHLC Chart template, swap in your own data, and export. Browse all templates.

Ready to Create Your OHLC Chart?

No signup. No watermark. 100% free.

Start Creating Now