Diffchecker.net

Diffchecker.net is a free browser-based tool for comparing two versions of plain text. Paste text into two editors or upload supported text files, then review additions, removals, and inline changes on your device. It supports source code, JSON, YAML, configuration files, logs, documents, and essays, with line, word, and character precision, split or unified views, syntax highlighting, and hidden unchanged lines. The comparison runs locally in the browser.