UltraISO vs PowerISO is a comparison that comes up constantly, and honestly, for good reason, both tools cover very similar ground: creating, editing, and burning ISO files, mounting virtual drives, and building bootable USB media. PowerISO is the one I’d point most people toward today given its more actively updated release cycle, but UltraISO has a long history of its own and is still genuinely capable software from EZB Systems, in continuous development since 2002.
UltraISO 9.7.6.3860 is developed by EZB Systems, and it’s an ISO image creation, editing, and conversion tool with a bootable CD/DVD/USB maker built in. What sets it apart from a simple disc-burning utility is direct ISO editing, most tools require extracting an image, modifying the files, then repacking everything from scratch, while UltraISO lets you add, delete, and modify files inside an ISO directly, preserving the image’s integrity throughout rather than rebuilding it. PowerISO Portable covers similar territory in a no-install format, worth knowing about if you specifically don’t want to run a full installer.
Format support is genuinely broad: ISO, CUE, BIN, NRG, MDF, MDS, IMG, CCD, UIF, VCD, BWT, DAA, BWI, HFS, DMG, C2D, and IMA are all supported for conversion, along with UltraISO’s own proprietary ISZ format, a compressed image format supporting AES encryption. Worth flagging honestly: security researchers have noted ISZ’s encryption implementation lacks integrity protection and is vulnerable to a specific cryptographic attack (a padding oracle attack), so it’s not a format I’d rely on for genuinely sensitive data, even though it’s convenient for space-saving archival of ordinary disc images.
The AutoSplit feature added a few versions back handles writing bootable UEFI USB drives directly from a Windows 10 or later ISO, and support for UDF ISO images with individual files over 200GB covers modern large-scale disc image needs that older ISO tools weren’t built to handle. Virtual drive support extends to working alongside DAEMON Tools Pro 8, letting UltraISO-created images mount cleanly in that companion virtualization software.
Key Features
- Direct ISO editing: add, delete, and modify files without full extraction and repack
- Wide format support: ISO, BIN, NRG, MDF, IMG, DAA, HFS, DMG, and more
- Proprietary ISZ compressed format with optional AES encryption
- AutoSplit feature for bootable UEFI USB creation from Windows ISOs
- Support for UDF images with individual files over 200GB
- Virtual drive mounting, compatible with DAEMON Tools Pro 8
- Dual-window interface with drag-and-drop file handling
- Bootable CD/DVD creation with preserved boot information
ScreenShots
System Requirements
- Windows 7 through Windows 11 (32-bit and 64-bit)
- 1 GHz processor or higher
- 512 MB RAM minimum
- 50 MB free disk space for installation
- Portable version available for use without installation
Why I Recommend
The direct in-place ISO editing is the feature that genuinely distinguishes this from simpler ISO tools. Being able to modify an image’s contents without a separate extract-and-repack cycle saves real time on repetitive tasks like customizing a bootable installer image.
Where I’d be completely direct: the free trial is functionally crippleware, limited to editing or creating ISO images of 300MB or smaller. That’s fine for testing the interface, but useless for anything resembling a modern OS install image, a Windows 11 ISO alone runs around 6GB. If you need to actually work with current-sized images, budget for the $29.95 single-user license, or the $49.95 family license if multiple household computers need it. And given how heavily this exact version is targeted by “pre-activated” piracy listings, downloading only from EZB Systems’ own site matters more than usual, cracked installers for a tool with this much file-system access carry real risk.
For anyone managing disc images or bootable media, our System Tools section has more utilities worth comparing against UltraISO, including PowerISO if you want an actively updated alternative.
You May Also Like
- TeraByte Unlimited BootIt Bare Metal 1.92 Full Version
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Technical Details
- Developer: EZB Systems, Inc.
- Version: 9.7.6 Build 3860
- Platform: Windows (32-bit and 64-bit)
- License: Full Version
- Free trial: unlimited time, capped at 300MB ISO images
Download Information
Download | Size: 4.97 MB | Mazterize.in
