# DiffDuo

根据 OpenAITools.app 于 2026-11-11 核对的流量数据，DiffDuo（diffduo.com）是一个收录在 AI 代码审查下的 AI 平台，月访问量为 0，月度环比流量变化为 +0（0%）。其主要地理市场为全球（— 流量份额），采用免费定价模式。按月流量计算的主要竞争替代方案包括 Command Code（235.82万次访问/月），Aikido Security（75.75万次访问/月），Bito（6.38万次访问/月）。

DiffDuo is a free online diff checker that compares two texts, files or code snippets directly in your browser. It shows removed lines in red, added lines in green and highlights the exact words that changed, in either a side-by-side split view or a git diff-style unified view.

## 关键遥测与规格

| 指标 | 数值 |
| :--- | :--- |
| 工具名称 | DiffDuo |
| 标识 | diffduo |
| Status | active |
| Origin | independent |
| Maintenance | active |
| 官方域名 | diffduo.com |
| 官网地址 | https://diffduo.com |
| 分类 | AI 代码审查, AI 摘要工具, Large Language Models (LLMs), AI 代码助手, AI Developer Tools |
| 定价模式 | 免费 |
| 月访问量 | 0 |
| 月度环比流量变化 | 0 |
| 月度环比增长率 | 0% |
| 主要市场 | 全球 |
| 市场份额 | — |
| 直接访问量 | 0 |
| 自然搜索访问 | 0 |
| 社交访问 | 0 |
| 推荐访问 | 0 |
| 邮件访问 | 0 |
| 评价得分 | 4.1 |
| 收藏数 | 1 |
| 支持平台 | 网站 |
| 计费平台 |  |
| 属性 | 功能: 网站; 定价: 免费试用; 定价: 付费 |
| 标签 | Git diff, 拉取请求, 代码审查, GPT, 代码分析, 代码摘要, 协作, 缺陷检测, 漏洞检测 |

## 概览

DiffDuo is a free online diff checker that compares two texts, files or code snippets directly in your browser. It shows removed lines in red, added lines in green and highlights the exact words that changed, in either a side-by-side split view or a git diff-style unified view.

## 定价与套餐

DiffDuo is completely free: no sign-up, no account, no limit on the number of comparisons and no ads. Comparison runs locally in your browser.

## 关键功能与能力

- **Split and unified views:** Read changes in two columns side by side, or switch to a single-column unified diff in the same format as git diff and patch files.
- **Word-level highlighting:** Darker highlights mark the exact words and characters that changed inside a modified line, not just the lines that differ.
- **Local, private processing:** The comparison runs entirely in your browser, so confidential code, contracts and config files never leave your device.
- **Whitespace and case tolerance:** Ignore whitespace, indentation and capitalisation differences, and control how much unchanged context is shown around each change.
- **Large-file handling:** Compares plain-text files up to 50 MB in a background thread, so pages with hundreds of thousands of lines do not freeze the UI.

## 主要用例

- **Reviewing changes before a commit (Developer):** Compare two versions of a source file in any language, spot the exact characters that changed, then copy the patch in diff format for your notes or issue tracker.
- **Diffing config and data files (DevOps or data engineer):** Find what changed between two JSON, XML, YAML, CSV or SQL files, such as two API responses or two database schemas.
- **Comparing document revisions (Writer, editor or translator):** Paste two drafts of an article, contract or translation to see every added, removed and rewritten word without installing desktop software.
- **Spotting log differences (Operations or support):** Drop in two log files and highlight only the lines that changed between runs, with whitespace and case noise optionally ignored.

## 优势

- Runs fully in the browser, so sensitive text and code are never uploaded
- Free with no sign-up, no usage limits and no advertising
- Word-level highlighting makes edits inside a line easy to spot
- Unified view matches git diff and patch format, including hunk headers
- Handles large files, including files with 100,000+ lines, without freezing the page
- Interface available in many languages

## 局限

- Limited to plain-text comparison, with no semantic or AI-based code review
- No account, saved history or team collaboration features
- Requires JavaScript to be enabled in the browser
- No desktop or command-line client, so it is a manual copy-and-paste workflow

## 常见问题

### Is DiffDuo free to use?
Yes. DiffDuo is free, with no sign-up, no limit on the number of comparisons and no ads.

### Is my text uploaded to a server?
No. The comparison runs entirely in your browser, so your text and files never leave your device. That makes it suitable for confidential documents, configuration files and source code.

### What is the difference between split and unified view?
Split view shows the two versions in two columns, which is easiest to read. Unified view uses a single column with removed lines marked by a minus and added lines marked by a plus, matching the git diff and patch format.

### Can DiffDuo compare large files?
Yes. Plain-text files up to 50 MB each are supported, and comparison runs on a background thread, so files with hundreds of thousands of lines are handled without freezing the page.

### How do I ignore whitespace or capitalisation?
Turn on 'Ignore whitespace' to treat lines as equal when they differ only in spaces, tabs or indentation, and 'Ignore case' to ignore uppercase and lowercase differences.

### Does DiffDuo use AI to review code or summarise pull requests?
No. DiffDuo is a plain diff checker focused on showing textual differences. It does not generate summaries or AI review comments.

### DiffDuo 的月流量和增长趋势如何？
DiffDuo 目前每月获得 0 访问量，月度环比流量变化为 +0（增长率 0%）。其主要来源市场是全球（— 份额），包括每月 0 次直接访问和每月 0 次自然搜索访问。

### DiffDuo 免费吗？它的定价模式是什么？
DiffDuo 采用免费定价模式。DiffDuo is completely free: no sign-up, no account, no limit on the number of comparisons and no ads. Comparison runs locally in your browser. 支持的计费和结账平台包括：未列出。

### 2026 年 DiffDuo 的最佳替代方案有哪些？
基于 OpenAITools.app 的分类流量和功能契合度，DiffDuo 的前五个替代方案是：1. Command Code（235.82万次访问/月）; 2. Aikido Security（75.75万次访问/月）; 3. Bito（6.38万次访问/月）; 4. Macroscope（10.62万次访问/月）; 5. What the Diff（1113 次访问/月）。

### DiffDuo 支持哪些平台和核心 AI 能力？
DiffDuo 被归类在 AI 代码审查, AI 摘要工具, Large Language Models (LLMs), AI 代码助手下，支持以下平台：网站，其核心能力标签包括：Git diff, 拉取请求, 代码审查, GPT, 代码分析, 代码摘要。

## 替代工具

| 工具名称 | 月访问量 | 定价模式 | 对比 |
| :--- | :--- | :--- | :--- |
| [Command Code](https://openaitools.app/zh/tool/command-code) | 2,358,177 | 免费增值，定价请咨询 | [对比](https://openaitools.app/zh/compare/command-code-vs-diffduo) |
| [Aikido Security](https://openaitools.app/zh/tool/aikido-security) | 757,491 | 免费增值 | [对比](https://openaitools.app/zh/compare/aikido-security-vs-diffduo) |
| [Bito](https://openaitools.app/zh/tool/bito) | 63,829 | 免费增值，付费，定价请咨询 | [对比](https://openaitools.app/zh/compare/bito-vs-diffduo) |
| [Macroscope](https://openaitools.app/zh/tool/macroscope) | 106,170 | 免费试用，付费，定价请咨询 | [对比](https://openaitools.app/zh/compare/diffduo-vs-macroscope) |
| [What the Diff](https://openaitools.app/zh/tool/whatthediff) | 1,113 | 免费增值 | [对比](https://openaitools.app/zh/compare/diffduo-vs-whatthediff) |
| [Traycer AI](https://openaitools.app/zh/tool/traycer-ai) | 19,384 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/diffduo-vs-traycer-ai) |
| [AI Code Mentor](https://openaitools.app/zh/tool/ai-code-mentor) | 2,516 | 免费增值 | [对比](https://openaitools.app/zh/compare/ai-code-mentor-vs-diffduo) |
| [CodeReviewBot.AI](https://openaitools.app/zh/tool/codereviewbot-ai) | 2,515 | 免费增值，免费试用，付费，定价请咨询 | [对比](https://openaitools.app/zh/compare/codereviewbot-ai-vs-diffduo) |
| [Ollama](https://openaitools.app/zh/tool/ollama) | 9,421,973 | Free, Freemium, Paid | [对比](https://openaitools.app/zh/compare/diffduo-vs-ollama) |
| [DeepWiki by Cognition](https://openaitools.app/zh/tool/deepwiki-by-congnition) | 879,539 | 免费 | [对比](https://openaitools.app/zh/compare/deepwiki-by-congnition-vs-diffduo) |
| [CodeThreat](https://openaitools.app/zh/tool/codethreat) | 674 | 免费增值，定价请咨询 | [对比](https://openaitools.app/zh/compare/codethreat-vs-diffduo) |
| [Metabob](https://openaitools.app/zh/tool/metabob) | 1,112 | 免费增值，定价请咨询 | [对比](https://openaitools.app/zh/compare/diffduo-vs-metabob) |

---
来源：https://openaitools.app/zh/tool/diffduo