offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

File Comparator

Compare two files byte-by-byte to detect differences and verify file integrity

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

File 1

File 2

How does file comparison work?

This tool performs byte-by-byte comparison of two files to determine if they are identical. It also checks file size, name, and type metadata.

What does "identical" mean?

Identical means the files have exactly the same binary content, byte-for-byte. Even a single different byte will make files non-identical.

Can files with different names be identical?

Yes! Files can have completely different names but identical content. This tool checks both metadata (name, size, type) and actual file content separately.

Is this tool secure?

Yes, all processing happens locally in your browser. Your files are never uploaded to any server, ensuring complete privacy.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.

Session file-tool analysis history

Keep a local, session-only record of successful file analyses in this browser session.

No analysis results yet. Run a file analysis to populate this panel.

Session download history

Re-download generated file outputs from this browser session.

No generated outputs yet. Use a file tool in this session to populate this panel.