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RCS PATCH
File conversion

Convert RCS to PATCH

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Is it possible to convert RCS to PATCH?
Yes - RCS converts to PATCH.

rcsdiff generates a unified diff between any two revisions of an RCS-controlled file, which can be saved as a standard patch file. This is the most natural "export" from RCS.

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert RCS to PATCH

Converting a .RCS file to .PATCH lets you open the content in software that prefers the .PATCH format, though some details may change compared with the original. We are still putting together the list of programs that handle .RCS files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.RCS Revision Control System File

An RCS file is a Revision Control System archive - a plain-text file that holds every checked-in revision of a single source-code file, along with author names, dates, and log messages.…

Open .RCS details →
.PATCH Patch

A .PATCH file is associated with Patch, a misc file.

Open .PATCH details →