Swift Diff Checker

Paste two versions of Swift code to compare additions, removals and edited lines with Swift syntax highlighting. The diff runs locally in your browser.

Texto original

Texto alterado

Swift syntax locked

This page automatically highlights Swift tokens, so you do not need to pick a language before comparing files.

Private local compare

The diff runs in your browser. Source code, API payloads and configuration files are not uploaded to a server.

Split or unified review

Use split view for side-by-side review, unified view for compact patches, and hide unchanged lines for large files.

Compare Swift files online

This Swift diff checker is built for developers who need a fast, private way to compare code and configuration changes. Paste two versions, run the comparison, and review additions, removals and inline edits with Swift syntax highlighting already enabled.

Paste or upload the original Swift file on the left.
Paste or upload the changed Swift file on the right.
Compare the result in split or unified view, then hide unchanged lines when you only need the edited regions.

Private browser-based Swift comparison

The diff runs locally in your browser, which keeps source code, API responses, secrets and configuration files on your device. One recent session may be stored in your browser storage for restore, and you can clear it from the tool at any time.

Common Swift diff workflows

Compare SwiftUI, UIKit and server-side Swift changes.

Review struct, enum and protocol edits.

Check optional handling and async code changes.

Swift syntax highlighting

Highlighting is locked to Swift on this page, so the language selector stays out of the way. The parser focuses on tokens such as structs, protocols, optionals, closures while the diff engine highlights the actual text changes.

.swift

Reference: Swift documentation