CodePatch is a lightweight developer tool for safely applying AI-generated FIND/REPLACE code patches directly in Firefox. Paste your current code, the exact FIND block, and the replacement code. CodePatch applies the modification only when the FIND block occurs exactly once, helping prevent accidental or ambiguous replacements. Features include exact-match validation, persistent code storage, one-step undo, clipboard tools, AI patch instructions, and a compact Firefox sidebar interface that remains available while browsing. CodePatch works locally in your browser. Your code is not uploaded or sent to external servers.
