想要(Want)比较两个相同的文档并找出它们之间的差异？使用这些免费的在线文档比较工具(free online document comparison tools)。这些在线服务使您能够检查文档的两个版本之间所做的更改。您可以将保存为Word(Word)、Txt、PDF、HTML、PPT和其他格式的文档的不同副本导入这些网站，然后检查它们之间的差异和差异。所以，事不宜迟，让我们看看这些免费的网络服务。
如何在线比较文件
有免费的在线工具可以比较两个文档：
- 可起草
- 差异化
- PDF24 工具
- 合并
- 文本比较
让我们详细讨论它们！
1] 可起草
Draftable是一个免费的在线工具，用于比较两个相似的文档。您可以将它与DOC、DOCX、RTF、PDF、PPT、PPTX和更多文档格式一起使用。在左侧添加(Add)文档的旧版本，在右侧添加新版本，然后单击“比较(Compare)”按钮查看比较。您可以查看以红色(Red)（文本仅显示在左侧）和绿色(Green)（文本仅显示在右侧）颜色突出显示的差异。
您将获得一个同步滚动(Sync Scrolling)功能，您可以使用该功能同步滚动浏览两个文档。它还提供了一个更改列表(Change List)，您可以在其中查看内容更改、样式更改(content changes, style changes)或两者。除此之外，它还提供两种视图模式（单个文档视图，并排）和全屏功能。您可以将差异和比较报告导出(export differences and comparison report)到PDF文档。而且，您还可以与其他人在线共享文档比较的链接。
阅读(Read)： 如何比较两个 Word 文档(How to compare two Word documents)并突出显示差异。
2] 差异现在
DiffNow是一个免费的在线文档比较工具。它可以让您比较PDF、Word（DOC、DOCX）、Excel（XLS、XLSX）、PowerPoint（PPT、PPTX）等文件。您还可以使用它比较两个源代码文件。此外，它还允许您复制和粘贴两个纯文本以突出它们的差异。
它向您显示两个文档中行号的差异，并以不同的颜色突出显示差异。您可以在并排面板中查看文档之间的更改。它显示添加、删除和更改的行(added, deleted, and changed lines)数以及内联差异(inline differences)数。您可以轻松地从一个差异移动到另一个差异，切换全屏模式以查看比较，并自定义各种设置。
您还可以在其中获得一个有用的功能，以下载(download comparison reports)HTML格式的比较报告。您可以共享下载的报告以向您的同事展示差异。
DiffNow提供免费和付费计划，免费有一些功能限制，如大小限制、不支持插件等。
阅读(Read)：How to compare two files in Notepad++。
3] PDF24工具
PDF24 Tools是一个不错的免费网络服务，用于比较不同格式的文档。它可以让您比较Word、Text、PDF和其他一些文档文件。除了本地保存的文档外，它还允许您从Dropbox和Google Drive云服务导入文档。要使用它，只需单击加号 (+) 图标即可将文档的两个版本导入左侧和右侧。之后，点击比较(Compare)按钮可以快速查看两个文档之间的差异。
它突出显示并显示红色(Red)和绿色(Green)的差异。红色的(Red)删除线(Strikethrough)文本显示文本仅存在于左侧文档中，而绿色(Green)突出显示文本仅存在于右侧文档中。两个文档中的相同内容按原样显示。
该网站还提供各种与 PDF 相关的工具，包括合并 PDF、拆分 PDF、提取 PDF 页面、PDF 转换器( Merge PDF, Split PDF, Extract PDF Pages, PDF Converter,)等。
阅读(Read)：如何比较Windows 10中不同位置的同一文件夹中的相同文件。(compare the same files in the same folder in different locations)
4]合并
Mergely是一个免费网站，用于识别两个文档之间的差异。您可以打开本地保存的文档或从URL链接导入它们。转到其文件(File)菜单并单击导入( Import)选项以添加文档的新副本和以前的副本以进行比较。在左侧和右侧部分，您将看到文档和它们之间的差异。
使用此服务，您还可以合并(merge differences)两个文档之间的差异并使它们完全相似。它还允许您手动编辑文档中的文本。您还可以共享文档比较的链接，让人们查看它们之间的差异。
提示(TIP)：您也可以使用文本比较器软件(Text Comparator software)来比较文件。
5]文本比较
TextCompare是一个很好的工具，可以找出文档的两个副本之间的相似之处和不同之处。您可以上传原始文档和修改后的文档，然后单击“查找差异”(Find Difference)按钮列出它们之间的更改。它允许您在并排视图中查看内联更改以及差异。您还可以通过它比较Excel和PDF文件。
该工具主要用于比较各种语言的源代码，包括XML、YAML、HTML、Java、CSS、JSON、CSP、SQL、PHP、JavaScript、Python、Ruby等。您可以通过电子邮件(Email)、Facebook、Twitter和LinkedIn共享文档差异。
只需上传文档的原始版本和编辑版本，即可轻松查看它们之间的差异！
提示(TIP)：您还可以使用Excel 比较工具比较Excel 表格(Excel Sheets)。
Compare PDF, HTML, PPT, etc. Documents Online using these free tools
Want to compare two identical documents and find out the differences between them? Use these free online document comparison tools. These online services enable you to check for changes made between two versions of a document. You can import different copies of your documents saved in Word, Txt, PDF, HTML, PPT and other formats to these websites, and then check what and where they have differences if any. So, without much ado, let’s check out these free web services.
How to Compare Documents Online
There are free online tools to compare two documents:
- Draftable
- DiffNow
- PDF24 Tools
- Mergely
- TextCompare
Let’s discuss them in detail!
1] Draftable
Draftable is a free online tool to compare two similar documents. You can use it with DOC, DOCX, RTF, PDF, PPT, PPTX, and more document formats. Add an older version of a document to the left side and a newer version to the right side and then click on Compare button to view the comparison. You can view differences highlighted in Red (text present in left only) and Green (text present in right only) colors.
You get a Sync Scrolling feature using which you can scroll through both documents in sync. It also provides a Change List where you can view content changes, style changes, or both. Other than that, it offers two view modes (single document view, side by side) and a fullscreen feature. You can export differences and comparison report to a PDF document. And, you can also share a link to document comparison with other people online.
Read: How to compare two Word documents and highlight differences.
2] DiffNow
DiffNow is a free online document comparison tool. It lets you compare PDF, Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX), and more files. You can also compare two source code files using it. Additionally, it lets you copy and paste two plain texts to highlight their differences.
It shows you differences with the line numbers in both documents and highlights differences in distinct colors. You can view changes between documents in side-by-side panels. It displays the number of added, deleted, and changed lines and number of inline differences. You can easily move from one difference to another, toggle fullscreen mode to view comparison, and customize various settings.
You also get a useful feature in it to download comparison reports in HTML format. You can share the downloaded report to show differences to your colleagues.
DiffNow provides both free and paid plans and the free has some feature limitations like size limit, no plug-in support, etc.
Read: How to compare two files in Notepad++.
3] PDF24 Tools
PDF24 Tools is a nice free web service to compare documents in different formats. It lets you compare Word, Text, PDF, and a few other document files. Apart from locally saved documents, it lets you import documents from Dropbox and Google Drive cloud services. To use it, simply click on the plus (+) icon to import two versions of your document to the left and right sides. After that, click on the Compare button to quickly view the differences between the two documents.
It highlights and shows differences in Red and Green colors. Strikethrough text in Red color shows the text is only present in the left document, while Green highlight shows that the text is only present in the right document. The same content across both documents is displayed as it is.
This website also provides various PDF-related tools including Merge PDF, Split PDF, Extract PDF Pages, PDF Converter, and more.
Read: How to compare the same files in the same folder in different locations in Windows 10.
4] Mergely
Mergely is a free website to identify differences between two documents. You can open locally saved documents or import them from URL links. Go to its File menu and click on the Import option to add new and previous copies of a document to compare. In the left and right sections, you will see the documents and differences between them.
Using this service, you can also merge differences between two documents and make them completely similar. It also lets you manually edit the text in the documents. You can also share a link to document comparisons to let people view the differences between them.
TIP: You can also use Text Comparator software to compare files.
5] TextCompare
TextCompare is a good tool to find out similarities and dissimilarities between two copies of a document. You can upload original and modified documents and then click on the Find Difference button to list down changes between them. It lets you view inline changes as well as differences in a side-by-side view. You can also compare Excel and PDF files through it.
This tool is mainly used to compare source code of various languages including XML, YAML, HTML, Java, CSS, JSON, CSP, SQL, PHP, JavaScript, Python, Ruby, and more. You can share document differences via Email, Facebook, Twitter, and LinkedIn.
Just upload original and edited versions of your document and see the differences they have with much hassle!
TIP: You can also compare Excel Sheets using Excel Compare Tool.
