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A simple diff checker tool to quickly find the difference between two blocks of text. Works with plain text, code, and more.
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Difftext.com is a free online tool to instantly find and highlight differences between two blocks of text, designed for developers, writers, and anyone comparing code snippets or documents.
Difftext.com is a dead-simple, client-side web app that lets you paste or drag two blocks of text and see differences highlighted instantly. It stands out with its clean, modern UI that avoids the clunkiness of older diff tools.
The project solves the problem of awkward interfaces in popular text comparison websites, making it fast and pleasant for quick diffs. It's built for developers comparing JSON responses or code changes, writers reviewing edits, and teams spotting text variations without downloading software.
The creator launched it as a side project in October 2024 after frustration with existing options, aiming for a 'pleasing UI' focused on essentials.
Optional: Navigation through changes (inferred from similar tools)
This project is useful for:
Last updated: 2026-03-24
Yes — Completely free to use with no sign-up, limits, or ads.
No — Source code is not publicly available.
Share feedback or suggestions on the Product Hunt page (https://www.producthunt.com/products/diff-text) or the launch Reddit post (https://www.reddit.com/r/SideProject/comments/1fyajvw/i_built_a_better_text_diff_website_for_developers).
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