Text Diff Checker
Compare two text blocks with accessible line-by-line added, removed, changed, and unchanged results.
Your data stays private
This tool runs directly in your browser. The content you enter is processed locally and is not sent to TechFixGen servers. No account or signup is required.
Text diff guide
A text diff aligns two blocks line by line and labels unchanged, added, removed, and changed lines. Paste the original and modified versions, choose comparison options, then select Compare.
Ignore whitespace helps with formatting-only edits; Ignore case treats letter case as equivalent. Common uses include configuration files, logs, code snippets, and test output.
Inputs up to 1 MB combined are compared locally and are never uploaded.
Text diff FAQ
Can I compare code?
Yes. Comparison is text-based and language-independent.
What do added and removed mean?
Added exists only in Modified; removed exists only in Original.
Are files uploaded?
No file upload is used and pasted text remains local.