Create SFX File

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Compression instructions below

How do I create SFX file?

Below are step by step instructions for creating SFX archives using ezyZip.

  1. Select files to archive To add files to your SFX archive, you have two options:
  2. (Optional) Set compression level
    (Optional) Set the desired compression level by clicking the down arrow next to "Create SFX File" button.
  3. Click Create SFX File
    Click "Create SFX File". It will start compressing the files.
    2. Create SFX File
  4. Save your archive
    Click "Save SFX File" to save the archive to selected destination folder.
    Save the created SFX file to local drive
More how-to guides
Create a SFX archive that includes all the contents of your selected folder, including any subfolders and their files. Simply click the folder button and ezyZip will archive your entire folder structure while maintaining the original organization. You can then drag & drop more files & folders as you wish to expand your archive with additional content.
Select folder
  1. Select from Dropbox
    Click the down arrow (▾) next to the file selection button, then choose "Select from Dropbox".
    Select from Dropbox
  2. Pick your files
    A small ezyZip window opens. Click "Continue to Dropbox", sign in to Dropbox if asked, then pick what you want to compress.
  3. Compress your files
    ezyZip downloads your selection into your browser. Then follow the instructions above.
  4. Save to Dropbox
    When your file is ready, click the down arrow (▾) next to the save button and choose "Dropbox". The first time, Dropbox asks you to allow ezyZip access.

    Files are saved in the /Apps/ezyZip folder.
  1. Select from Google Drive
    Click the down arrow (▾) next to the file selection button, then choose "Select from Google Drive".
    Select from Google Drive
  2. Sign in and pick files
    A Google Drive window opens. Sign in to Google if asked, allow ezyZip to access the files you choose, then pick what you want to compress.
  3. Compress your files
    ezyZip downloads your selection into your browser. Then follow the instructions above.
  4. Save to Google Drive
    When your file is ready, click the down arrow (▾) next to the save button and choose "Google Drive". Sign in to Google if asked.

    Files are saved in the My Drive/ezyZip folder.
  1. Select from OneDrive
    Click the down arrow (▾) next to the file selection button, then choose "Select from OneDrive".
    Select from OneDrive
  2. Sign in and pick files
    A OneDrive window opens. Sign in with your personal Microsoft account if asked and allow ezyZip access, then pick what you want to compress.
  3. Compress your files
    ezyZip downloads your selection into your browser. Then follow the instructions above.
  4. Save to OneDrive
    When your file is ready, click the down arrow (▾) next to the save button and choose "OneDrive". Sign in with your Microsoft account if asked.

    Files are saved in the Apps/ezyZip folder.

Frequently asked questions

ezyZip is an online tool that supports any OS that can run a modern browser. We have tested it to work with Windows, MacOS, Linux (e.g. Ubuntu, Mint, Debian), Android, ChromeOS (Chromebook), iOS (iPhone, iPad & iPod Touch).

We are continuously updating the system, so ensure you are using the latest version of one of the popular browsers or their variants. (e.g. Chrome, Firefox, Safari, Opera).

Please let us know via the feedback form if you have any issues.

An SFX file (Self-Extracting archive) is an executable file that contains compressed data along with built-in extraction code. Unlike standard archive formats, SFX files do not require any decompression software to be installed on the recipient's computer — the user simply runs the file and the contents are automatically extracted. This makes SFX archives ideal for distributing compressed files to users who may not have archive utilities installed.

ezyZip uses the 7-Zip format to generate its SFX archives, producing .exe files that will self-extract on Windows platforms. If you are on a non-Windows platform or prefer not to run the executable, you can also extract the contents of ezyZip-generated SFX files using the ezyZip web platform.

ezyZip is a collection of online file management tools, including this free SFX file creation utility. Unlike other online file compression tools, ezyZip runs locally in your browser, which helps protect your privacy. You can create SFX archives quickly and securely without uploading your files to a server.

ezyZip processes files directly in your browser. Unlike most online tools, your files are not uploaded to our servers, which means faster processing and better privacy. Take a look at the feature comparison below and we think you'll agree that ezyZip is the better choice for your file conversion needs.

Feature ezyZip Other Online Tools
No Software Installation Works Directly in Browser Works Directly in Browser
Processing Location Your Browser (No Upload) Their Servers (Upload Required)
Privacy & Security Files Stay on Your Device Files Uploaded, Accessible by Others
Processing Speed Fast (No Upload/Download Time) Slow (Upload + Process + Download)
Works Offline Yes (After Page Load) No
Supported Formats 350+ Archive Formats Limited Format Support
Established Since 2009 (15+ Years) Recent (May Disappear)

Why client-side archiving is faster for large SFX files

When you create a SFX archive with ezyZip, the compression runs entirely in your browser using WebAssembly (WASM). Here is why our local engine outperforms server-based archivers:

  • On-Demand Codec LoadingMultiple compression codecs — including Deflate, LZMA, Brotli, and Zstandard — are compiled to WASM and loaded only when needed, executing at near-native CPU speed without installing any software. Each codec is optimized for its specific algorithm, so ezyZip automatically selects the most efficient encoder for your chosen archive format.
  • Parallel Web WorkersCompression runs in dedicated Web Workers on separate threads, keeping the browser interface fully responsive even during CPU-intensive operations. This means you can continue browsing, editing documents, or working in other tabs while your archive is being created in the background.
  • Streaming OutputCompressed data streams directly to your disk via the File System Access API or Origin Private File System (OPFS), so memory usage stays bounded regardless of archive size. Even multi-gigabyte archives can be created without exhausting your browser's memory allocation, since data is flushed to disk in chunks rather than buffered entirely in RAM.
  • Zero Network OverheadYour files are read through the browser's File API, eliminating the upload, server queue, and download bottleneck of remote tools. For large files on slow connections, this can reduce total processing time from hours to minutes.
  • Configurable Compression LevelsAdjust the compression level to balance speed against file size reduction. Lower levels produce archives quickly for rapid sharing, while maximum compression squeezes out every byte for long-term storage or bandwidth-constrained transfers.

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