Diffchecker — Text & Code Diff Tool

Compare two text documents, code snippets, or configurations to highlight exact differences side-by-side or inline.

Original Text

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Modified Text

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What is Diffchecker?

Diffchecker is an online comparison utility that helps programmers, writers, and students spot discrepancies between two pieces of text, code, or data. It compares text line-by-line to isolate additions, removals, and changes.

Side-by-Side vs. Unified Diff

Side-by-side mode lets you inspect both files in parallel columns, ideal for visual reviews. Unified mode stacks changes in a single timeline (similar to GitHub pull requests), providing a compact view of edits.