Text diff checker
Find lines added, removed or unchanged between two versions of a text.
How it works
Longest common subsequence (LCS) algorithm, line by line. "+" = line added, "−" = line removed.
Results are for guidance only and do not replace professional advice.
Worked example
With the default values:
- OriginalBonjour, · Voici le devis demandé. · Prix : 1 200 € · Délai : 3 semaines · Cordialement
- New versionBonjour, · Voici le devis demandé. · Prix : 1 150 € · Délai : 3 semaines · Paiement à 3…
you get:
- Lines added+2
- Lines removed−1
- Unchanged lines4
- Similarity73 %
Frequently asked questions
How does the “Text diff checker” tool work?
Longest common subsequence (LCS) algorithm, line by line. "+" = line added, "−" = line removed.
What do I need to enter?
Just fill in: original, new version. The result updates as you type.
Can you give an example?
Original: Bonjour, · Voici le devis demandé. · Prix : 1 200 € · Délai : 3 semaines · Cordialement; New version: Bonjour, · Voici le devis demandé. · Prix : 1 150 € · Délai : 3 semaines · Paiement à 3… → Lines added: +2; Lines removed: −1.
Is this calculator free, and is my data private?
Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.