zhengyang.sh
installed locally06
01Diff ViewerCompare two text files or pasted snippets entirely in your browser.viewer02Parquet ViewerInspect local Parquet files without uploading their contents.viewer03JSON FormatterFormat, minify, validate, unwrap, and repair JSON locally.formatter04Base64 Encoder / DecoderConvert UTF-8 text, local files, Base64URL, Data URLs, and binary bytes.codec05URL Encoder / DecoderPercent-encode and decode URLs, query values, and path segments.codec06Markdown PreviewEdit CommonMark and GFM with a network-safe local preview.preview
tool://diff-viewer local / ready
viewer / browser utility

Diff Viewer

A GitHub-style side-by-side comparison with paired lines, inline change highlights, and clear old/new numbering.

acceptstwo text snippets or local text files
processinglocal browser only
open difftool diff