File Comparator
Line-by-line diff viewer
Compara dos textos o archivos línea por línea. Soporta vista dividida y unificada, ignorar espacios y mayúsculas, arrastrar y soltar, exportar patch y compartir por URL.
Sin historial aún.
File Comparator: Detect Differences Line by Line
Comparing two versions of a file line by line is essential for code reviews, tracking changes in configs, auditing document modifications, or debugging content differences. Our comparator uses the Myers algorithm (same as git diff) for optimal precision.
Support for text, code, JSON, XML, CSV. Color highlighting: green for additions, red for deletions, yellow for modifications. Includes options to ignore whitespace, comments, or case.
All processing runs in your browser. Files never upload to servers, so it's safe to compare confidential documents, sensitive configs, or private code.
How does it work?
- 1Upload or paste both files
Two side-by-side fields to enter the original (left) and modified (right) content.
- 2Configure comparison options
Ignore whitespace, case, blank lines, or specific comments.
- 3Review the diff
Differences appear with color highlighting and specific line numbers.
Frequently Asked Questions
Yes, but performance depends on your browser and RAM. As a reference: files up to 10 MB are comparable smoothly on modern equipment. For larger files, use command-line tools like diff or delta.
No. Everything is processed with JavaScript in your browser. You can verify it by opening DevTools > Network and confirming there are no XHR requests when running the comparison.
This tool is optimized for text. To compare binaries (PDFs, images), it's better to compare hashes (SHA-256) with our hash generator — same hash = identical files.