Line diff vs character diff — which should I use?

Line diff is standard for source code and most text — it shows which lines changed. Character (or word) diff is better for prose where changes within a line matter. Most tools default to line diff with intra-line highlighting.

Why does my diff show every line as changed?

This usually means line endings differ (CRLF vs LF) or there is trailing whitespace. Normalize line endings and trim whitespace before diffing to get a meaningful comparison.

Comparer two texts and show the differences

Comparer les différences two versions of a text to see insertions, deletions, and modifications at the line or character level.

1

Comparing two text versions reveals what changed — essential for reviewing edits, comparing configs, or debugging output differences. A diff shows added lines (+), removed lines (-), and unchanged context.
2

Diff de texte →
Paste the original and modified text. The tool produces a unified diff with + and - markers, and optionally a side-by-side view.
3

text-diff
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Use the chain to diff two texts and summarize the change statistics (lines added, removed, changed) in one pass.

Questions fréquentes

Line diff vs character diff — which should I use?: Line diff is standard for source code and most text — it shows which lines changed. Character (or word) diff is better for prose where changes within a line matter. Most tools default to line diff with intra-line highlighting.
Why does my diff show every line as changed?: This usually means line endings differ (CRLF vs LF) or there is trailing whitespace. Normalize line endings and trim whitespace before diffing to get a meaningful comparison.

Workflows résolvant cette tâche

Comparer deux blocs de texte ligne par ligne

Trouver les lignes ajoutées, supprimées et inchangées entre deux versions d'un document texte.

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