CFML File

What are CFML files and how to open them

Are you having problems opening a CFML file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your CFML files.

What is a CFML file?

A .CFML file is a ColdFusion Markup Language file.

ColdFusion Markup Language (CFML) files are web scripting templates used to build dynamic websites and applications. Created and processed by the ColdFusion server platform (such as Adobe ColdFusion), a CFML file mixes HTML with special tags, functions, or script blocks to enable things like database access, form processing, conditional logic, and dynamic content generation. When a browser requests a CFML file, the ColdFusion server executes those special parts and sends back plain HTML to the client.

These files are written by developers or web designers using ColdFusion or similar CFML-compatible engines. The typical workflow is: author a .cfml page including a mix of layout and logic; deploy it to a web server running ColdFusion; on request the engine parses and runs the CFML parts, fills in data, and returns the result to users. CFML supports two styles: tag-based syntax (with tags enclosed in angle brackets like HTML) and script-based syntax (known as CFScript, similar to JavaScript).

CFML pages often use special file extensions such as .cfm, .cfml, or .cfc (for components, which are reusable modules containing functions). Components (files ending in .cfc) allow organizing related functions and data, supporting modularity and object-oriented features like encapsulation and inheritance.

Internally, CFML files being cleartext mix of HTML and CFML are identifiable by certain signatures. For example, they often begin with bytes 0x3C 63 66 at offset 0 (ASCII "

Primary program that creates and works with these files is Adobe ColdFusion Builder, an integrated development environment (IDE) used for authoring CFML applications, including CFML files, components, and related assets.

How to open CFML files

We have identified one CFML opener that is compatible with this specific type of CFML file.

Programs that open ColdFusion Markup Language files

Last updated: August 5, 2026

Various apps that use files with this extension

These apps are known to open certain types of CFML files. Remember, different programs may use CFML files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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