2026 年 macOS 最佳資料夾比對工具完整評測
資料夾比對(Folder Compare / Directory Diff)是軟體開發、備份驗證、遠端協作流程中的基礎工具。你需要它的情境比你想像的多:部署前確認 build output 和上一版的差異、把兩台電腦的工作目錄同步、確認備份完整性、或是在接手別人的程式碼前快速了解什麼改過了。
2026 年,macOS 上的選擇比過去多,但選對工具的重要性也更高。原生 Apple Silicon 支援、是否能同時處理 binary diff、全文搜尋整合——這些差距在日常使用中會很快放大。以下評測六款工具,從免費到付費、從 GUI 到 Terminal,幫你一次找到最適合的選擇。
功能對照總表
| 工具 |
原生 macOS |
Apple Silicon |
資料夾 Diff |
檔案 Diff |
Binary/Hex |
全文搜尋 |
定價 |
效能 |
| Lode |
✅ Tauri+Rust |
✅ 原生 |
✅ |
✅ |
✅ |
✅ ripgrep |
免費 |
⭐⭐⭐⭐⭐ |
| Araxis Merge |
✅ |
✅ |
✅ |
✅ 三向合併 |
✅ Pro 版 |
❌ |
£139/年 |
⭐⭐⭐⭐ |
| Beyond Compare |
❌ Electron-like |
⚠️ Rosetta |
✅ |
✅ |
✅ |
❌ |
$60(一次) |
⭐⭐⭐ |
| FileMerge |
✅ |
✅ |
✅(基本) |
✅(基本) |
❌ |
❌ |
免費(含 Xcode) |
⭐⭐⭐ |
| Kaleidoscope |
✅ |
✅ |
✅ |
✅ |
❌ |
❌ |
$149/年 |
⭐⭐⭐⭐ |
Terminal diff -r |
✅ 內建 |
✅ |
✅ |
✅(文字) |
❌ |
❌ |
免費 |
⭐⭐⭐⭐ |
效能評分以「大目錄(10,000+ 檔案)掃描時的 UI 響應」為主要依據。
各工具詳細評測
Lode
Lode 是 2026 年推出的原生 macOS 工具,用 Tauri 2 + Rust 建構,整合六種模式:Viewer、Git Viewer、Folder Compare、File Compare、Binary Compare、全文搜尋(Search)。這六個功能平時分別需要三四個不同 App 才能覆蓋,Lode 把它們放在同一個工作台,工作流程中不需要切換視窗。
Folder Compare 是雙欄樹狀結構,Rust 後端非同步 I/O 掃描,幾千個檔案幾乎秒出結果。顏色語義清楚(綠=新增、紅=刪除、橙=修改、白=相同),雙擊橙色檔案立即進入 File Compare 逐行 diff。
Binary Compare 模式採用十六進位雙欄並列,LCS 算法確保插入/刪除不會破壞後續行的對齊,這是許多 hex viewer 做不到的細節。Search 模式背後是 ripgrep,支援正則表達式與 glob 篩選,在目錄比對找到差異後,可以直接在同一個 App 裡搜尋相關程式碼。
定價:免費。在 rexcode.app/lode/ 下載。
適合誰:獨立開發者、工程師、需要一站式工作台而不想為不同任務開不同 App 的人。
Araxis Merge
Araxis Merge 是成立超過 25 年的商業工具,三向合併(3-way merge) 是其最核心的差異化功能:可以同時比對「基礎版本」、「你的版本」、「他人的版本」,在同一畫面內解決衝突,這是任何免費工具都沒有的能力。除了程式碼,Araxis 還支援 Word 文件和 PDF 的語意比對(不是 binary diff,而是文字內容層級的比對),適合法務和翻譯工作。
Folder Compare 功能完整,支援過濾規則、排除特定副檔名或目錄。File Diff 支援 side-by-side 和 inline 兩種檢視,並可直接在 diff 畫面內編輯並合併。
定價:£139/年(Standard 版),Pro 版含 Binary Diff 功能,定價更高。
適合誰:需要三向合併的團隊、處理 Word/PDF 文件比對的法務或翻譯工作者、企業級流程要求 Araxis 整合的用戶。
延伸閱讀:Lode vs Araxis Merge 深度比較
Beyond Compare
Beyond Compare 是跨平台(Windows、macOS、Linux)的資料夾比對工具,功能全面,有多年用戶基礎。它支援 FTP、S3、Dropbox 等遠端來源直接比對,這是 Lode 和 FileMerge 目前沒有的能力。
然而,Beyond Compare 在 macOS 上並非原生 App——它基於 Qt framework,啟動速度和記憶體效率不如真正的原生工具。在 Apple Silicon(M1/M2/M3/M4)上,部分版本需要 Rosetta 2 轉譯,效能損失明顯。如果你的工作流程主要在 macOS,且不需要遠端來源比對,Lode 或 Araxis 通常是更好的選擇。
定價:$60 一次性授權(個人版)。
適合誰:需要跨平台(Windows + macOS + Linux)工作、或需要 FTP/S3 遠端目錄比對的用戶。
延伸閱讀:macOS 上的 Beyond Compare 替代方案
FileMerge
FileMerge 是 Xcode 內建的免費工具(安裝 Xcode 後可以從 /usr/bin/opendiff 呼叫,或在 Xcode 內啟動)。對於偶爾需要 folder diff 但不想額外安裝工具的開發者,它是零成本的選項。
功能相對基本:Folder Compare 支援遞迴比對,File Diff 以 side-by-side 顯示文字差異,但不支援 binary diff(遇到 binary 會顯示亂碼或拒絕比對)。也沒有全文搜尋整合或 hex view。對於純文字程式碼的 diff,FileMerge 足夠用;涉及 binary 或需要更多功能時,需要換其他工具。
定價:免費(需安裝 Xcode,約 5 GB)。
適合誰:已安裝 Xcode 的 Apple 開發者、偶爾需要 folder diff 而不想安裝額外工具的人。
Kaleidoscope
Kaleidoscope 是 macOS 上以設計美感著稱的 diff 工具,UI 細緻,支援程式碼 diff、圖片 diff(並列比對 PNG/JPEG/WebP 等圖片並高亮像素差異)、以及資料夾 diff。它和 Git 整合良好,可以設為 git difftool 和 git mergetool,讓 diff 在熟悉的 Git 工作流中自然呼出。
Kaleidoscope 不支援 hex/binary diff,也沒有全文搜尋引擎整合。對於以 UI 設計為主的開發者,圖片 diff 功能是它的獨特賣點;對於純工程用途,Lode 或 Araxis 的功能覆蓋更廣。
定價:$149/年(訂閱制)。
適合誰:設計師和前端開發者(需要圖片 diff)、以美觀 UI 為優先的用戶、深度整合 Git 工作流的開發者。
Terminal diff -r
macOS 內建的 diff 指令加上 -r(recursive)旗標,可以比對兩個整個資料夾:
diff -rq /path/to/folder-A /path/to/folder-B
-q 旗標只輸出「有差異的檔案名稱」,不輸出每個檔案的逐行 diff,適合快速掃描。如果需要特定副檔名:
diff -rq --include="*.py" /path/to/folder-A /path/to/folder-B
優點是零安裝、可腳本化,適合自動化流程、CI 管道、或 cron 任務。缺點是沒有 GUI、輸出是純文字不易瀏覽大量差異、不支援 binary diff、也沒有辦法互動式導覽到特定差異。
定價:免費(macOS 內建)。
適合誰:自動化腳本、CI/CD 流程、系統管理員、習慣 Terminal 的工程師。
延伸閱讀:如何在 macOS 比對兩個資料夾(Terminal 完整指令)
決策流程
選不定哪個工具?按以下流程走:
需要 Binary / Hex diff?
├── 是 → Lode 或 Araxis Merge Pro
└── 否 ↓
需要三向合併(3-way merge)?
├── 是 → Araxis Merge
└── 否 ↓
需要圖片 diff?
├── 是 → Kaleidoscope
└── 否 ↓
需要跨平台(Windows / Linux)?
├── 是 → Beyond Compare
└── 否 ↓
預算是零,且已裝 Xcode?
├── 是 → FileMerge(基本) 或 Terminal diff(腳本化)
└── 否 → Lode(免費、原生、功能最全)
如果你不確定,Lode 是最安全的起點:免費、原生 Apple Silicon、覆蓋了六種模式,日後隨著需求增長可以再評估是否需要補充 Araxis(三向合併)或 Kaleidoscope(圖片 diff)。
Rex 的實際使用經驗
在開發 Lode 的過程中,我把這六款工具全部認真用過——不是測試清單,而是真的當作日常工具用了幾個月。
最後為什麼自己做了一個?因為我發現自己每天在這幾個 App 之間來回切換:用 A 做 folder diff、用 B 做 file diff、用 Terminal ripgrep 搜尋、用 C 看 hex。每次切換都有工作流摩擦——啟動時間、視窗管理、無法把「我在 folder diff 裡找到的那個橙色檔案」直接帶到 search 模式裡搜尋。
Lode 的設計理念就是把這些模式整合在一個工作台:folder diff → 雙擊橙色檔案 → file diff → 直接在同一個 App 搜尋相關 symbol → 切 binary diff 比對 build output。這個工作流在 Lode 以前,我需要至少三個 App 才能走完。
Araxis 是我用過最完整的三向合併工具,如果你的工作需要三向合併,它是值得付費的。Beyond Compare 的遠端目錄比對是真實的差異化功能,但在 macOS 原生體驗上確實和 Lode 差距不小。Kaleidoscope 的圖片 diff 很精緻,但對純工程流程來說有點殺雞用牛刀。FileMerge 在趕快解個小 diff 時偶爾還是會開,但遇到 binary 或大目錄時幾乎不用了。
常見問題
Q:macOS 上最佳的免費資料夾比對工具是哪個?
Lode 是目前功能覆蓋最廣的免費選項,支援 folder diff、file diff、binary diff、全文搜尋,且是原生 Apple Silicon App。已安裝 Xcode 的開發者也可以用 FileMerge,但功能較基本,不支援 binary diff。
Q:Beyond Compare 在 macOS 上是原生 App 嗎?
不是。Beyond Compare 基於 Qt framework,並非真正原生的 macOS App。在 Apple Silicon 機器上,部分版本需要透過 Rosetta 2 轉譯才能執行,效能和整合度不如原生工具(Lode、Araxis Merge、Kaleidoscope)。
Q:資料夾比對工具能做 binary diff 嗎?
大多數工具不支援。FileMerge 和 Kaleidoscope 遇到 binary 會拒絕或顯示錯誤。Lode 和 Araxis Merge Pro 支援 binary/hex diff——Lode 在 folder compare 中雙擊 binary 檔案可以直接進入 binary diff 模式。
Q:哪款資料夾比對工具在 Apple Silicon 上效果最好?
Lode(Tauri+Rust)、FileMerge、Kaleidoscope 都是真正原生 Apple Silicon App。Araxis Merge 也有原生 ARM 版本。Beyond Compare 的 macOS 版本在 Apple Silicon 上有 Rosetta 依賴,效能較差。
Folder comparison has become a more central tool in 2026 than it was even a few years ago. Remote work means more diverging copies of the same project across different machines. Aggressive backup strategies mean more directories to verify. Complex CI/CD pipelines mean more build outputs to audit. The question is no longer “do I need a folder diff tool?” but “which one fits my workflow best?”
This review covers the six best folder comparison tools for macOS in 2026 — from free to paid, native to cross-platform, GUI to Terminal — with an honest breakdown of where each one wins and where it falls short.
Native macOS and Apple Silicon: A native app uses the system WebView and compiles directly to ARM64, giving significantly better startup time, memory usage, and battery efficiency than an Electron or Qt-based cross-platform app. On M-series Macs, the gap is especially noticeable when scanning large directories.
Correct diff algorithm for binary files: Most folder diff tools detect binary files and either refuse to open them or show garbage output. If you work with compiled binaries, database files, firmware blobs, or any non-text asset, you need a tool that handles binary diff properly.
Integrated workflow: The best folder diff tools let you flow naturally from folder-level overview → file-level diff → search → without switching apps. Every context switch adds friction.
Performance at scale: Scanning a directory with 50,000 files should not freeze the UI. Backend concurrency matters here — Rust async I/O handles it better than a JavaScript event loop.
Master Comparison Table
| Tool |
Native macOS |
Apple Silicon |
Folder Diff |
File Diff |
Binary/Hex |
Search |
Price |
Performance |
| Lode |
✅ Tauri+Rust |
✅ Native |
✅ |
✅ |
✅ |
✅ ripgrep |
Free |
⭐⭐⭐⭐⭐ |
| Araxis Merge |
✅ |
✅ |
✅ |
✅ 3-way |
✅ Pro |
❌ |
£139/yr |
⭐⭐⭐⭐ |
| Beyond Compare |
❌ Qt-based |
⚠️ Rosetta |
✅ |
✅ |
✅ |
❌ |
$60 one-time |
⭐⭐⭐ |
| FileMerge |
✅ |
✅ |
✅ Basic |
✅ Basic |
❌ |
❌ |
Free (with Xcode) |
⭐⭐⭐ |
| Kaleidoscope |
✅ |
✅ |
✅ |
✅ |
❌ |
❌ |
$149/yr |
⭐⭐⭐⭐ |
Terminal diff -r |
✅ Built-in |
✅ |
✅ |
✅ Text |
❌ |
❌ |
Free |
⭐⭐⭐⭐ |
Performance ratings are based primarily on UI responsiveness when scanning directories with 10,000+ files.
Lode
Lode is a native macOS application built on Tauri 2 + Rust, released in 2026. It integrates six modes into a single workspace: Viewer, Git Viewer, Folder Compare, File Compare, Binary Compare, and Search. These six functions normally require three or four separate apps. Lode puts them in one window, letting you move from folder overview to file diff to binary inspection to full-text search without any app switching.
Folder Compare uses a dual-column tree layout. The Rust backend’s async I/O scans large directories in seconds, not minutes, and the UI stays responsive throughout. Color coding follows a clear convention: green for files that exist only on the right, red for only on the left, orange for files present on both sides but with different content, and white for identical. Double-clicking any orange file immediately enters File Compare mode with side-by-side line diff.
Binary Compare uses a hex+ASCII dual-column layout. Lode’s LCS-based alignment algorithm handles insertions correctly — an extra byte in one file doesn’t cause everything after it to appear as “different.” This alignment correctness is something that most hex viewers and terminal tools don’t provide.
Search is backed by ripgrep, supporting full regex and glob filtering. After finding a difference in Folder Compare, you can search for related symbols or strings across the entire codebase without leaving the app.
Price: Free. Download at rexcode.app/lode/.
Best for: Independent developers, engineers who want an all-in-one workspace, anyone who finds themselves constantly switching between folder diff, file diff, and text search apps.
Araxis Merge
Araxis Merge has been the professional-grade diff and merge tool of choice for over 25 years. Its defining capability is 3-way merge: displaying a base version, your version, and someone else’s version side-by-side, with interactive conflict resolution in the same window. No free tool offers this, and it remains the primary reason to choose Araxis.
Beyond code, Araxis supports Word and PDF document comparison at the semantic text level (not binary diff, but actual word-by-word comparison), which makes it uniquely suited for legal and translation workflows. Folder Compare is full-featured, with filter rules, exclusion patterns, and support for timestamps-only vs. content comparison.
Price: £139/year (Standard). Pro version includes Binary Diff and is priced higher.
Best for: Teams that need 3-way merge, legal/translation professionals working with Word/PDF documents, enterprise workflows that have standardized on Araxis.
See also: Lode vs Araxis Merge: In-Depth Comparison
Beyond Compare
Beyond Compare is a cross-platform folder diff tool (Windows, macOS, Linux) with a long track record and broad feature set. Its main differentiator is support for remote sources: you can compare local folders directly against FTP, SFTP, S3, Dropbox, and other remote targets without downloading first. This is something neither Lode nor FileMerge currently offers.
However, Beyond Compare is not a native macOS application — it is built on the Qt framework, which means it does not use the system WebView and compiles to a separate binary rather than ARM-native code. On Apple Silicon Macs (M1 through M4), some Beyond Compare versions require Rosetta 2 translation, resulting in measurably worse startup time and higher memory usage than native alternatives. If your workflow is macOS-only and you don’t need remote source comparison, Lode or Araxis will feel significantly faster and more integrated.
Price: $60 one-time (Personal license).
Best for: Cross-platform teams (Windows + macOS + Linux), workflows requiring FTP/S3 remote directory comparison.
See also: Beyond Compare Alternatives for macOS
FileMerge
FileMerge ships with Xcode and can be launched from Terminal via opendiff file1 file2 or from within Xcode’s source control integration. For developers who already have Xcode installed and only occasionally need folder diff, it’s a zero-cost, zero-install option.
The feature set is basic: recursive folder comparison, side-by-side text file diff, and merge conflict resolution. FileMerge does not support binary diff — binary files will show garbled output or trigger an error. There’s no full-text search integration, no hex view, and the UI shows its age compared to more recent tools.
For pure text code diffing on small to medium projects, FileMerge is adequate. For anything involving binary files, large directories, or a need for integrated search, it falls short.
Price: Free (requires Xcode, ~5 GB install).
Best for: Apple developers already running Xcode who need occasional, basic folder diff with no extra install.
Kaleidoscope
Kaleidoscope is the macOS diff tool most known for its polished UI and image comparison. Alongside code and folder diff, it can compare images side-by-side and highlight pixel-level differences, which makes it uniquely useful for UI designers and front-end developers tracking visual regressions.
It integrates cleanly with Git as both git difftool and git mergetool, meaning diffs surface naturally in your existing Git workflow rather than requiring a separate launch step. The interface is refined, and the diff algorithm handles word-level changes in prose well (useful for documentation diffs).
Kaleidoscope does not support binary/hex diff, and there is no full-text search engine integration. For pure engineering use cases, Lode or Araxis covers more ground.
Price: $149/year (subscription).
Best for: Designers and front-end developers who need image diff, developers who prioritize UI polish, teams using Git merge tool integration.
Terminal diff -r
macOS includes diff as a built-in command. Adding -r (recursive) makes it compare entire directory trees:
diff -rq /path/to/folder-A /path/to/folder-B
The -q flag prints only filenames that differ, not the full line-by-line diff of each file — useful for a quick summary. To restrict to specific file types:
diff -rq --include="*.py" /path/to/folder-A /path/to/folder-B
The advantage is zero install and scriptability: you can pipe the output, schedule it in cron, integrate it into CI pipelines, or chain it with other Unix tools. The disadvantage is no GUI, no color, no binary support, and no interactive navigation through large diff sets.
Price: Free (macOS built-in).
Best for: Automation scripts, CI/CD pipelines, sysadmins, engineers who prefer to stay in Terminal.
See also: How to Compare Two Folders on macOS (Terminal + GUI Guide)
Decision Flowchart
Not sure which to pick? Work through this:
Do you need Binary / Hex diff?
├── Yes → Lode or Araxis Merge Pro
└── No ↓
Do you need 3-way merge?
├── Yes → Araxis Merge
└── No ↓
Do you need image diff?
├── Yes → Kaleidoscope
└── No ↓
Do you need cross-platform (Windows / Linux) or remote source (FTP/S3)?
├── Yes → Beyond Compare
└── No ↓
Is your budget zero, and do you already have Xcode?
├── Yes → FileMerge (basic) or Terminal diff (scriptable)
└── No → Lode (free, native, broadest feature set)
If you’re unsure, start with Lode — it’s free, native on Apple Silicon, and covers all six modes. You can always add Araxis later if you find you need 3-way merge, or Kaleidoscope if image diff becomes a requirement.
Rex’s Personal Experience
I’ve used all six of these tools seriously — not just for benchmarking, but as actual daily-use tools during the months I was developing Lode.
The honest reason I built Lode is that I kept running into the same friction: folder diff in one app, file diff in another, text search in Terminal, hex comparison in yet another. Every time I found an interesting orange file in my folder diff, I had to mentally note the path, switch to a different tool, and re-navigate to the same file. That context switch is small but it adds up to a lot of broken focus across a working day.
The tool I respect most from the existing field is Araxis — the 3-way merge implementation is genuinely excellent, and the Word/PDF document comparison is something no free tool has matched. If my workflow involved regular merge conflicts on shared branches, I’d use Araxis alongside Lode without hesitation.
Beyond Compare’s remote source comparison (FTP, S3) is a real differentiator and something I haven’t added to Lode yet. If your work involves comparing a local directory against a remote staging environment, Beyond Compare earns its price there.
Kaleidoscope’s image diff is a niche but real need — I’ve used it when checking that a UI build produced exactly the same pixel output as the reference design. For anything that doesn’t involve images, I reach for Lode.
FileMerge gets opened about once a month when I need to quickly check a diff on a machine where I only have Xcode and no time to install anything. It works for that narrow use case and nothing more.
Frequently Asked Questions
Q: What is the best free folder comparison tool for Mac?
Lode is the most feature-complete free option in 2026, covering folder diff, file diff, binary diff, and full-text search in a native Apple Silicon app. FileMerge (included with Xcode) is a free alternative for basic text file diffing but does not handle binary files. Terminal’s built-in diff -r is free and scriptable but has no GUI.
Q: Is Beyond Compare native on macOS?
No. Beyond Compare is built on Qt, a cross-platform framework, and is not a native macOS application. On Apple Silicon Macs, some versions require Rosetta 2 translation, which adds startup overhead and reduces performance compared to native tools like Lode, Araxis, and Kaleidoscope.
Q: Can I compare binary files with folder diff tools?
Most tools cannot. FileMerge and Kaleidoscope will error or display garbage on binary files. Lode and Araxis Merge Pro both support binary/hex diff. In Lode’s Folder Compare, you can double-click any binary file in the diff list and it opens directly in Binary Compare mode with hex+ASCII display.
Q: What folder compare tool works best on Apple Silicon?
Lode (Tauri+Rust), FileMerge, and Kaleidoscope all compile to native ARM64. Araxis Merge also ships a native Apple Silicon build. Beyond Compare has Rosetta dependency on some macOS versions and will be noticeably slower on M-series Macs. For the best Apple Silicon performance, Lode or Araxis are the top picks.