Compare two HTML using Go

Highly accurate Go diff checker to compare HTML files and find differences between them

Our powerful Go SDK allows you to find the difference between HTML documents and save the results to a convenient format for viewing. To verify our product capabilities, compare HTML files using this Go library and see the differences.

View code snippet

Compare HTML in Go

Our Go SDK is designed to give you the most accurate result, even though comparison is a complex function itself.

Sometimes you need to be sure that the document in the HTML format has not been changed, and if it has, you need to find out what the difference is. Just use our Go diff tool to compare two HTML files and find differences in whole words or single characters. Moreover, if only one character in a word has changed, this word will be marked as changed entirely.

Now you no longer need to spend time manually comparing HTML documents, and you can quickly find even small changes and export such diffs to a document in a convenient format.

Try to compare HTML documents

Check out how our solution to compare HTML files using Go SDK works. To achieve this, load the HTML files you want to compare and select the export file format – it will be automatically loaded after comparing.

Note that you need to accept all revisions in compared documents before calling the comparison method, as shown in our example:

Upload the compared file
Run code
Upload the second file to compare
Select the target format from the list
import (

config, _ := models.NewConfiguration("config.json")
wordsApi, ctx, _ := api.CreateWordsApi(config)

fileName1:= "Input1.html"
fileName2:= "Input2.html"
fileResult:= "Output.html"

//  Upload documents to cloud storage.
firstDocumentContent, _ := os.Open(fileName1)
uploadFirstFileRequestOptions := map[string]interface{}{}
uploadFirstFileRequest := &models.UploadFileRequest{
    FileContent: firstDocumentContent,
    Path: ToStringPointer(fileName1),
    Optionals: uploadFirstFileRequestOptions,
_, _, _ = wordsApi.UploadFile(ctx, uploadFirstFileRequest)

secondDocumentContent, _ := os.Open(fileName2)
uploadSecondFileRequestOptions := map[string]interface{}{}
uploadSecondFileRequest := &models.UploadFileRequest{
    FileContent: secondDocumentContent,
    Path: ToStringPointer(fileName2),
    Optionals: uploadSecondFileRequestOptions,
_, _, _ = wordsApi.UploadFile(ctx, uploadSecondFileRequest)

//  Compare documents in cloud.
compareDataOptions := models.CompareData{
    Author: ToStringPointer("author"),
    ComparingWithDocument: ToStringPointer(fileName2),
compareDocumentRequestOptions := map[string]interface{}{"destFileName": fileResult,}
compareDocumentRequest := &models.CompareDocumentRequest{
    Name: ToStringPointer(fileName1),
    CompareData: &compareDataOptions,
    Optionals: compareDocumentRequestOptions,
_, _, _ = wordsApi.CompareDocument(ctx, compareDocumentRequest)

//  Download result document from cloud storage.
downloadFileRequestOptions := map[string]interface{}{}
downloadFileRequest := &models.DownloadFileRequest{
    Path: ToStringPointer(fileResult),
    Optionals: downloadFileRequestOptions,
_, _ = wordsApi.DownloadFile(ctx, downloadFileRequest)
Run code
Copy Go code to the clipboard

How to Compare two text files

  1. Install Aspose.Words Cloud for Go
  2. Add a library reference (import the library) to your Go project
  3. Load two HTML documents to compare
  4. Call the CompareDocument() method to compare HTML docs
  5. Download the result document from the cloud storage

Go library to use compare

Run go get -v to install Aspose.Words Cloud SDK for Go. You can get a lot of useful information about other installation methods from the "How to use SDK" section.

Clone Aspose.Words Cloud SDK for Go source code from GitHub and use it in your project. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.

System Requirements

Refer to the Repository Documentation to see the details.

Other supported file formats

You can perform compare operation for other file formats:


Subscribe to Aspose Product Updates

Get monthly newsletters and offers directly delivered to your mailbox.

© Aspose Pty Ltd 2001-2024. All Rights Reserved.