C++ Beautifier: Format C++ Code Online in Your Browser
The C++ Beautifier formats pasted or dropped C++ source with clang-format compiled to WebAssembly, the same engine used by IDEs. Choose a base style such as LLVM, Google, or Chromium, then set indentation and a column limit to shape the output. It runs in your browser, so you can review consistent formatting without sending your code to a server.
C++ Beautifier is a browser-based C++ code formatter that uses clang-format compiled to WebAssembly—the same engine used by IDEs. Paste or drop C++ source to format it online, then review and copy the result. It helps make code easier to read and keeps formatting consistent without changing the task into a conversion to another programming language.
Choose a base style such as LLVM, Google, or Chromium, and set the indentation and column limit for the output. These options guide how clang-format lays out the code. The tool can also help you check whether input parses cleanly and find the line where it does not.
C++ source code describes a program, while formatting controls how that source is arranged on screen. Developers use a formatter to make code easier to scan, apply a consistent style, and reduce whitespace-only differences in reviews and diffs. A selected style and layout settings help produce output that is easier to compare and discuss.
The C++ Beautifier runs entirely in your browser; your input is processed on your device and is not uploaded, stored, or sent to a server. After the page has loaded, it works offline without a server connection. This makes it useful for developers and DevOps engineers who want a quick way to format C++ code while keeping their source private.
Step 1: Paste or drop your C++ source into the tool. Start with a snippet or a complete source file.
Step 2: Choose a base style, such as LLVM, Google, or Chromium. The selected style guides how clang-format lays out your code.
Step 3: Set the indentation and column limit to suit your formatting needs. These options affect the layout of the formatted output.
Step 4: Review the formatted C++ and copy the result. If the input does not parse cleanly, use the tool to check where the issue occurs.
Use case: Make an unreadable, machine-generated C++ file easier to review before committing it. Consistent layout helps you focus on the code rather than its spacing.
Use case: Check C++ written by someone else against a base style you need to follow. Choose a style such as LLVM, Google, or Chromium and inspect the result.
Use case: Reduce whitespace noise in a diff by formatting code consistently before comparing changes. This makes substantive edits easier to spot.
Use case: Format a C++ snippet before pasting it into a bug report or code review. Readable formatting gives other developers more context.
Use case: Check whether C++ input parses cleanly and identify the line where it does not. This can help when troubleshooting a pasted snippet.
Use case: Set indentation and a column limit for C++ output that needs a consistent layout. This is useful when preparing code for a team review.
Use case: Use a browser-based C++ formatter when you want to format code without sending it to a server. The tool processes the input on your device.