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Code Compare Online Tool

The code compare tool is a free-to-use dev utility on BetterBugs.io that enables you to instantly compare two code files or snippets of code in JavaScript, TypeScript, Python, and many other languages and code formats; perfect for diff checking, code reviews, spotting changes and potential code errors, or version control tasks.

Left

Right

 
 

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What is the Code Compare Online Tool?

The code compare online tool is a simple dev utility tool that enables you to instantly compare two code files or snippets. You can use the tool for performing diff checking, doing peer code reviews, pinpointing code errors, debugging, version control tasks, and similar tasks while working with code.

The code compare tool is absolutely free to use on the BetterBugs.io website. You do not need to sign up or set up anything for using it. You can get started with it directly.

The tool supports many programming languages and formats, including JavaScript, TypeScript, JSON, HTML, CSS, Python, Java, and Go.

After you put code or upload code files from your system for comparison, in the results, you’d get:

  • Highlighted code: Shows the exact difference (highlighted in green and red).
  • Summary: Shows the number of changes in the code for what’s added, what’s missing, and what’s unchanged.

For checking diff, you can tweak the compare tool’s “View” option to run a:

  • Side by side check: Shows the comparison in two output boxes (highlighting the changes)
  • Unified check: Shows the comparison in one output box (highlighting the changes)

You can also tweak the tool to:

  • Ignore case
  • Ignore whitespace
How to use the tool

Using the tool is super simple:

Step 1:Select your preferred programming language: Open the “Language” dropdown and select your language. You can also use the “Auto” option to auto-detect your language. Here’s what the dropdown option looks like:
  • Auto
  • JavaScript
  • TypeScript
  • JSON
  • HTML
  • CSS
  • Python
  • Java
  • Go
Step 2:Add code to comparePaste your code snippets to compare in the “Left” and “Right” input boxes. To upload code files from your system, use the “Upload” buttons at the top of each input box.
To start over, you’ve the “Clear” buttons for both your code snippets.
Step 3:Set preferences for case and whitespaceNext, enable/disable “Ignore case” and “Ignore whitespace” option(s).
Step 4: Set View for comparison
From the “View” dropdown, choose between:
  • Side by side
  • Unified
Step 5:Click Compare
Finally, hit “Compare” to run an instant comparison check.
Step 6:Check results and use
You should get the result:

  • In the output box with the difference(s) highlighted

  • Summary of code added, removed, and unchanged

Click “Copy” to copy the two code sets to your clipboard. To download them as a text file, use the “Download” button.
To clear everything, use the “Clear” button at the top of the output box.
What are the use cases for the tool

You can use the tool compare tool for various purposes in software development, such as:

  • Version control and commit reviews: Compare local changes with previous versions or branches before committing, so you clearly see what has been added, removed, or refactored.
  • Peer code reviews: Paste two versions of a file during review sessions to walk through changes line by line, making reviews faster and more focused.
  • Debugging and bug fixing: Compare a broken version of the code with a previously working version to quickly spot unintended edits, missing lines, or formatting-related issues.
  • Refactoring and cleanup: Run a diff after refactoring to ensure that only intended changes are present and that there are no accidental logic changes hidden in formatting updates.
  • Merge conflict inspection: When resolving merge conflicts, use the tool to compare different variants of a file and verify the final merged result before pushing changes.
  • Test case and config comparison: Compare test files, configuration files, or environment-specific settings to understand why a feature behaves differently across environments.
  • Documentation and snippet maintenance: Compare code snippets in documentation, blog posts, or knowledge base articles against the actual implementation to keep examples accurate and up to date.
  • Learning and code exploration: As a learner, compare your code with a mentor’s solution or a reference implementation to understand differences in logic, style, or structure.
BetterBugs Logo

The essential AI companion every QA needs

Swiftly document and share bugs like never before

Free Forever. No Credit Card Required.

Use AI to reproduce and fix bugs

Screen Recording with Rewind (Upto 2-min)

Capture backend logswith every bug report

Assign bugs and share at single click