How Nelvumo Compare works
Compare text files locally, see hidden differences, and save a verified patch or report. No upload and no account.
Choose two versions
Choose or paste the original and changed text. Reading and comparing happen on this device.
See what changed
Read the changes side by side or inline. Check encodings, line endings, hidden characters and ignored differences.
Save a copy
Save a verified patch, a masked HTML report or a merged file. The original files stay unchanged.