ISO Compresser Online (Free, Instant & Unlimited)

Compress ISO files online! Free, easy to use and secure, our compression tool has unlimited usage without uploading your files to any server.

Drag and drop some files here, or click to select files

How to create ISO/compress files online?

  • Add all files you want to compress either by drag and drop section or choose file by click on input area.
  • Optionally you can set a password.
  • If the ISO format is not selected automatically, use the Format selector.
  • Click on Compress button to compress and download the ISO file automatically.
  • You can click on reset button if you want to compress new files.
What are the features of Unziper.com compression tool?:
  • Supports Multiple Formats: Our tool supports a wide range of compression formats, including ISO.
  • Unlimited Usage: You can compress as many files as you want, with no restrictions on usage.
  • Secure: All processing happens on your device, ensuring the privacy and security of your files.
  • Works Anywhere: Our tool is web-based, so you can compress files from any device running Windows, Mac OS X, Android or Linux. No need to install any software.
  • Easy to Use: Our tool is designed to be user-friendly, with a simple interface that makes it easy to compress files in just a few clicks.
  • Fast and Instant: The compression process is quick, allowing you to compress files and download the archive instantly.
  • Password Protection: You can add a password to your compressed ISO files for added security.
  • No Sign-Up Required: You don't need to create an account or sign up to use our compression tool. It's completely free and anonymous.
What is compressing of files?:
  • ISO file compression is the process of reducing the size of one or more files to save storage space and make them easier to transfer over the internet.
  • Formats like ISO use compression algorithms to package multiple files into a single archive and reduce their overall size.
  • This is achieved by identifying patterns and redundancies within the data and encoding them in a more efficient way.
  • When the compressed file is extracted, the original files are restored to their original form.
What are the advantages of compressing files?:
  • Reduced File Size: ISO Compression reduces the size of files, saving storage space on your device or server.
  • Faster Transfer Speeds: Smaller files can be transferred over the internet more quickly, making it easier to share large files or folders.
  • Data Archiving: ISO Compression is useful for archiving data, as it allows you to bundle multiple files or folders together into a single file.
  • Improved Download Speeds: For websites, compressing files can improve download speeds, enhancing the user experience.
  • Encryption: Our compression tools also offer encryption, adding an extra layer of security to your files.
What are the disadvantages of compressing files?:
  • Time Consumption: Compression and decompression can be time-consuming, especially for large files. This can slow down the process of saving and opening files.
  • Potential for Data Loss: If a compressed file becomes corrupted, you may lose all the files contained within it. This risk is higher with lossy compression, which permanently removes data to reduce file size.
  • Compatibility Issues: Not all systems or software can open all types of ISO compressed files. Users may need specific software to decompress and access the files.
  • Reduced Quality (Lossy Compression): Some types of compression, known as lossy compression, reduce file size by permanently eliminating certain information, which can lead to a reduction in quality. This is often used in image and audio compression.
What are common compression formats and their characteristics?:
  • ZIP:
    • Widely supported and can be opened by almost all decompression software.
    • Supports lossless compression, preserving the original quality of files.
    • Allows password protection for added security.
    • Not as efficient in reducing file size as some other formats like 7z or RAR.
    • Does not support multi-part compression (splitting the archive into multiple files).
  • 7z:
    • Offers a high compression ratio, often creating smaller files than other formats.
    • Supports encryption with AES-256 bit, which is stronger than ZIP.
    • Supports multi-part compression.
    • Not as widely supported as ZIP. Users may need to install 7-Zip or a compatible program to open these files.
    • Compression and decompression can be slower due to the higher compression ratio.
  • GZ:
    • Commonly used in Unix and Linux systems.
    • Efficient for compressing single large files or streams of data.
    • Does not support compressing multiple files or directories into a single archive without using another tool like TAR.
    • Does not support password protection or encryption natively.
  • BZ:
    • Offers a high compression ratio.
    • Commonly used in Unix and Linux systems.
    • Compression and decompression can be slower due to the higher compression ratio.
    • Does not support password protection or encryption natively.
  • TAR:
    • Commonly used in Unix and Linux systems.
    • Can bundle multiple files and directories into a single archive.
    • TAR itself does not provide compression, it's often used with other compression tools like GZIP or BZIP2.
    • Does not support password protection or encryption natively.
  • ISO:
    • ISO is an archive file for optical disc media.
    • Widely supported by many software.
    • Does not provide compression, it's a sector-by-sector copy of the disc.
    • Does not support password protection or encryption natively.
  • XZ:
    • Offers a high compression ratio.
    • Commonly used in Unix and Linux systems.
    • Compression and decompression can be slower due to the higher compression ratio.
    • Does not support password protection or encryption natively.
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An ISO file is an archive file that typically contains a single disc image of an optical disc, such as a CD or DVD. This type of file format is used to store exact contents of a disk, including all the data and formatting information. Furthermore, an ISO image can compress and store large files and directories in one place, allowing for easier archiving, sharing, and distribution. Additionally, these files are able to be mounted as virtual drives without having to extract their content first.What is a iso file?

UnZiper is an incredibly helpful and easy-to-use online tool that makes it possible to extract, compress, or convert compressed files in an instant. All you need is a web browser and UnZiper does the rest for you - quickly, easily and best of all, free! The advantages of using UnZiper are endless - you save time by not having to install any software, you don't have to worry about viruses as no downloads are required, and most importantly of all, you can do it all on demand with just a few clicks. UnZiper gives users the freedom to work with their compressed files when they need to without waiting around. It's fast, secure and reliable - making it ideal for anyone who needs to extract, compress or convert compressed files quickly.What is UnZiper?

UnZiper 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). Ensure you are using the latest version of one of the popular browsers (e.g. Chrome, Firefox, Safari, Opera, Edge).What operating system does UnZiper support?

Max file size is limited by your device RAM. Theoretical size limit is 4GB.What is maximum file size supported by UnZiper?