---
title: "Introducing Online GZIP de/compressor, built with Blazor WebAssembly"
excerpt: "Using Blazor WASM and the GZIP API's I created this little web application which you can use to compress and decompress multiple files using GZIP."
publishDate: "2021-01-10T00:00:00"
createDate: "2021-01-08T04:01:22.297"
updateDate: "2021-01-10T22:00:07.047"
category: "dotnet"
categoryName: ".NET"
tags: [".NET",".NET Core","ASP.NET Core","Blazor","Blazor WASM","WASM","Blazor WebAssembly"]
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ogTitle: "Introducing Online GZIP de/compressor, built with Blazor WebAssembly"
ogDescription: "Using Blazor WASM and the GZIP API's I created this little web application which you can use to compress and decompress multiple files using GZIP."
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Web Assembly (WASM) has allowed many different programming platforms to now be supported inside of the web browser. You can now develop C# .NET applications that run inside of the browser using <a rel="noopener" href="https://dotnet.microsoft.com/apps/aspnet/web-apps/blazor" target="_blank">Blazor WebAssembly</a>.





A large amount of the .NET API is now usable right inside the browser when you use Blazor WASM. One of those API's is the <a rel="noopener" href="https://docs.microsoft.com/en-us/dotnet/api/system.io.compression.gzipstream" target="_blank">GzipStream</a> class which you can use to compress and decompress files using the GZIP algorithm. Unfortunately, the Brotli API's aren't supported in Blazor WASM.





Using Blazor WASM and the GZIP API's I created this little <a rel="noopener" href="https://gzip.swimburger.net/" target="_blank">web application which you can use to compress and decompress multiple files using GZIP</a>. All the files are de/compressed right inside of the browser without transmitting them to a server. This does mean that it is using your device to perform this task and the size of the files are limited depending on the limitation of your browser. Here's a preview:




<p><a rel="noopener" href="https://gzip.swimburger.net/" target="_blank"><img src="/media/jhmj5h5t/gzip-compress.gif" alt="Two files are dragged into the GZIP compression web application. The button &quot;Compress Files&quot; is clicked. The files are listed and have a loading animation next to their name. The files are compressed and downloaded back to the device." width="1080" height="600" /></a></p>

The application also works offline and is installable thanks to the PWA capabilities built-in to Blazor WASM.


Both Windows, Mac, and Linux operating systems already have built-in ways to de/compress files using GZIP, but you can also use this tool if you prefer a web application over the command line utilities. You can find <a rel="noopener" href="https://github.com/Swimburger/BlazorDeCompressor" target="_blank">the source code on GitHub</a>.