What software is commonly used to generate Qi Men charts?

Software That Produces Reliable Qi Men Charts

Software determines whether your chart is usable or dangerous. Choose carefully or expect strategic mistakes.

What the program must actually calculate

Qi Men Dun Jia charts rest on precise astronomical and calendrical constructions, not metaphors. Gates, Stars, Deities, Wonders, and panels are the working parts that have to be placed correctly for any reading to be valid. Gates are positional templates that indicate result patterns in the 8 Doors system, Stars are the 9 Stars that carry directional influence, Deities are the 8 Gods that modify meaning, Wonders are the Three Wonders of Heaven, Earth, and Human that define the session frame, and panels means the Heaven panel and Earth panel layouts the system uses to map time into space.

Why accuracy beats features

Most mistakes you will see in charts come from three sources, not from poor interpretation. First, incorrect local time, daylight saving handling, or longitude. Second, bad ephemeris or simplified solar term handling. Third, software that switches methods silently and without documentation. Verify the raw placements of the 8 Doors, the 9 Stars, and the 8 Gods before you trust a program to make recommendations.

Typical classes of software available

There are five categories you will encounter in the market. Each category has strengths and weaknesses and a clear use case.

• Desktop Chinese Windows applications. These are the historical backbone of professional practice. They tend to bundle fast chart drawing with Chinese calendrical algorithms and formatting for print. They are powerful for batch work but frequently Windows only and in Chinese language.
• Web calculators and browser tools. These are convenient for quick checks and international use. They vary wildly in correctness, so web tools are for verification and speed rather than primary decision making.
• Mobile apps and WeChat mini programs. These are useful in the field and for client delivery. Their calendrical engines are often simplified, so use them for presentation and not for precision timing tasks.
• Scripting libraries and APIs. These are the choice of analysts who automate hundreds of charts, integrate to business systems, or require reproducible pipelines. They require technical skills but give you audit trails and repeatability.
• Custom Excel and PDF generators. These are useful for bespoke reporting and small practices. They are prone to human error in setup and should be audited against a trusted source.

Names matter but so does provenance

When someone sends you a file from a desktop program, ask for three things immediately. Request the timezone and longitude saved with the chart. Request the base ephemeris or solar term algorithm used. Request whether the software uses modern GMT conversion or the old local mean time conventions. If you do not get those answers you do not have a usable chart, you have a picture.

Practical features to demand

Software features are not bells. They are ways to reduce error. Demand these core capabilities before you invest time or money.

• Full control over observer longitude, timezone, and daylight saving. Charts must use the actual local solar time, not a guessed local time.
• Support for both Heaven panel and Earth panel outputs, and an option to print raw stems and branches. You will need both views for cross verification.
• Ability to show raw placements of the 8 Doors, the 9 Stars, and the 8 Gods on the grid, plus the calculations that produced them.
• Export formats including image, text, and if possible machine readable formats. You must be able to reproduce a calculation from exported data.
• Audit logs or calculation trace. Good software will show you intermediate steps, not only the final chart.

Which tools professionals actually use

Practitioners split into two groups. One group uses tested Chinese desktop suites that were developed over years by practitioners and are built around the Chinese calendar system. The other group uses custom automation built on libraries and APIs so they can batch process and integrate charts into decision systems. Both approaches are valid if the underlying calculations are transparent and auditable.

Web and mobile apps are increasingly common for client delivery. They provide convenience and polished layouts. They become dangerous when they hide their calendrical logic and do not allow you to verify the placements of Gate and Star positions, or the influence of the 8 Gods.

Trust outputs you can verify. If the software will not show you the raw Heaven panel and Earth panel placements, then you do not own the chart.

How to validate any software quickly

Validation is a two minute habit that separates competent operators from guessers. Use a known test case. Create a chart for a historically recorded hour where a published Qi Men text gives the placements. Compare the program output for the 8 Doors, the 9 Stars, and the 8 Gods against the published table. If any placement differs, stop using the program until you determine why.

Batch and scale considerations

If you plan to generate charts for business workflows, do not use mobile apps. Use an API or scriptable library that lets you control timezone and longitude for each record and returns raw placements. Add validation steps to your pipeline so that any chart that deviates from expected patterns is flagged for manual review.

Final selection checklist

• Can the software print or export the Heaven panel and Earth panel? Yes or do not buy.
• Does the tool show the raw placements of the 8 Doors, the 9 Stars, and the 8 Gods? Yes or do not buy.
• Can you set longitude, timezone, and daylight saving explicitly for each chart? Yes or do not buy.
• Is there a calculation trace or audit log available? Yes or do not buy.
• Does the vendor document which calendrical rules and ephemeris they use? Yes or do not buy.

Most problems are solved by selecting software that exposes its calculations and by making verification a standard part of your workflow.

Pick the right tool, verify every chart, and use the output decisively.