Binary file compare (bsdiff)

Compares two binary files and produces a difference ("patch") file by means of bsdiff tool.

This online tool lets you compare two binary files and see how they differ from each other . It also lets you patch one binary file with a «diff» file (usually having extension .diff or .patch) to generate a new («patched») version. ¶

This tool uses Unix bsdiff/bspatch utilities. You might also be interested in text diff or another binary diff tool – xdelta3.
Note that this tool compares binary files – for text file comparison it's much more convenient to use a text diff tool. ¶


Original file:	Max size of the input data is 10 MiB. ▲ clear By file upload: ▼ clear From URL (http[s], ftp[s]): ▼ clear By direct input: (UTF-8) Enter one or more wrappers (comma-separated): If necessary, enter initial data here: (UTF-8) Wrappers are executed in sequence on shared data string. For example, to supply base64-encoded stream of GZIP-compressed data enter wrappers: `base64, gzip` and fill the data input with the base64 stream. ¶ If *data* is not entered information from other tabs (upload, by URL and direct) is used to replace *data* on this page. This lets you enter `gzip` as a wrapper here and upload a file using upload tab while leaving *data* on this page empty. ¶ Currently supported wrappers are: `base64, bzip, cslashes, datauri, direct, ftp, ftps, gzip, hex2bin, http, https, qprintable, upload, url, urlencoding, zlib`. ¶ Upload By URL Direct input Custom Ctrl+Shift+E
Second file or patch file: This is expected to be (if Compare button is clicked) a second file to compare first one to, or (if Patch is pressed) a patch file to apply to the original file.	Max size of the input data is 10 MiB. ▲ clear By file upload: ▼ clear From URL (http[s], ftp[s]): ▼ clear By direct input: (UTF-8) Enter one or more wrappers (comma-separated): If necessary, enter initial data here: (UTF-8) Wrappers are executed in sequence on shared data string. For example, to supply base64-encoded stream of GZIP-compressed data enter wrappers: `base64, gzip` and fill the data input with the base64 stream. ¶ If *data* is not entered information from other tabs (upload, by URL and direct) is used to replace *data* on this page. This lets you enter `gzip` as a wrapper here and upload a file using upload tab while leaving *data* on this page empty. ¶ Currently supported wrappers are: `base64, bzip, cslashes, datauri, direct, ftp, ftps, gzip, hex2bin, http, https, qprintable, upload, url, urlencoding, zlib`. ¶ Upload By URL Direct input Custom Ctrl+Shift+E

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Binary file compare (bsdiff)