Create 7Z File

uploading

Compression instructions below

How do I create 7Z file?

Below are step by step instructions for creating 7Z archives using ezyZip.

  1. Select files to archive To add files to your 7Z archive, you have two options:
    Click "Select files to archive" to open the file chooser 1. Create 7Z File
  2. (Optional) Set compression level
    (Optional) Set the desired compression level by clicking the down arrow next to "Create 7Z File" button.
  3. Click Create 7Z File
    Click "Create 7Z File". It will start compressing the files.
    2. Create 7Z File
  4. Save your archive
    Click "Save 7Z File" to save the archive to selected destination folder.
    Save the created 7Z file to local drive
More how-to guides
Create a 7Z 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.

A 7Z file is a compressed archive format developed by Igor Pavlov and primarily associated with the 7-Zip software. This format utilizes a variety of compression algorithms, with LZMA being the most common, to achieve high compression ratios. 7Z files are capable of compressing multiple files into a single archive, making it easier to store and share large amounts of data efficiently.

The 7Z format is open-source and supports advanced features such as strong AES-256 encryption, the ability to create multi-volume archives, and optional data recovery records. Its flexibility and efficiency have made it a popular choice for users seeking powerful compression and strong security.

ezyZip is a collection of online file management tools, including this free 7Z file creation utility. Unlike other online file compression tools, ezyZip runs locally in your browser, ensuring your privacy is protected. You can create 7Z 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 100% Private (Files Never Leave Your Device) Files Uploaded, Accessible by Others
Processing Speed Fast (No Upload/Download Time) Slow (Upload + Process + Download)
Registration Required Never Often Required for Large Files
Works Offline Yes (After Page Load) No
Supported Formats 350+ Archive Formats Limited Format Support
Cost 100% Free Free with Limitations / Paid Tiers
Established Since 2009 (15+ Years) Recent (May Disappear)

Why client-side archiving is faster for large 7Z files

When you create a 7Z 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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