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Diff Checker

Compare two blocks of text without installing a desktop diff tool.

Comparing code snippets or configs meant switching to a desktop tool or pasting into a heavy enterprise diff app.

Tech Domain · Book Dev|Published|Evidence: Live|Next.js, TypeScript

A public deployment is available to try.

Case Study

Before

Comparing code snippets, configs, or documents required switching between desktop tools or pasting into heavy enterprise diff tools that weren't web-accessible.

After

Delivered an instant, zero-install diff tool that handles large text comparisons in the browser. Used daily for code reviews, config comparisons, and document versioning.

How it's solved

Created a lightweight browser-based diff tool with side-by-side comparison, inline highlighting, and support for multiple diff algorithms. Added URL-based sharing so teams can compare snippets without installing anything.

Trade-offs

Very large files can slow down the in-browser diff algorithm — it's built for typical snippets and configs, not huge datasets.

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