Spotting the Difference: Essential Tactics for Code Reviews

The Needle in the Haystack

You deployed a config change and the site went down. The file looks almost identical to the backup. What changed? Often, it's a single character—a hidden tab, a missing comma, or a changed version number.

Visual Diffing

Comparing text by eye is unreliable. Git works great for codebases, but what about snippets, config files, or database dumps? You need a side-by-side comparison.

Our Diff Checker highlights additions in green and deletions in red. It aligns the text so you can focus only on the changes.

Use Cases

• Config Drifts: Compare your local .env with the production one.
• Code Audits: Review a suspicious snippet sent by a colleague.
• Content Editing: See what your editor changed in the latest draft.

Privacy Note: Pasting sensitive code into online tools is scary. That's why our Diff Checker runs locally in your browser. Your code never leaves your machine.

Find the bug before it ships. Compare your files with the Diff Checker.