TestDisk

Overview

TestDisk is an open-source utility for recovering partitions, repairing boot structures and retrieving some deleted files. It is best suited to people who need those specific disk-level repairs and are comfortable working with a portable recovery tool. Its breadth of filesystem and operating-system support is a strength; its focused recovery workflow makes it a poor fit for anyone seeking a general-purpose, guided file-recovery product.

It can work with hard drives, USB drives, memory cards, disk images, direct-attached storage, storage area networks and Linux RAID devices. The maker says it runs without connecting to the internet or transmitting information about the user, computer or data. It is licensed under GNU GPL v2 or later and requires no installer: extract the application files to use it.

Key features

• Partition recovery: TestDisk can repair partition tables and recover deleted partitions, with support listed for APFS, FAT, exFAT, HFS+, ext2/ext3/ext4, NTFS, XFS and ZFS. That range makes it relevant across varied storage formats, though it does not turn the tool into an all-purpose file recovery solution.
• Boot repair: It can rebuild or restore FAT and NTFS boot sectors, repair FAT tables and repair an MFT using its mirror. These are targeted options for disks that will not boot because of software faults or human error.
• File recovery: It can undelete files from FAT, exFAT, NTFS and ext2, and copy files from deleted FAT, exFAT, NTFS and ext2/ext3/ext4 partitions. Users needing recovery from other filesystems should not assume these file-recovery functions cover them.
• Portable recovery workflow: The application is distributed without an installer. The maker describes uses ranging from gathering drive information for a technician to onsite recovery work, which can suit both novices seeking help and experienced users carrying out repairs.
• Release choices: The download page lists version 7.2, dated February 22, 2024, and TestDisk & PhotoRec 7.3-WIP as a beta. Users who prefer a non-beta release can choose 7.2; the 7.3-WIP entry is explicitly marked beta.

Pricing

TestDisk costs free, billed as free software; donations are optional. The free plan includes partition recovery, boot sector repair and file undelete, with no paid tier or free-trial period to weigh against it. Its open-source license may also matter to users who want software they can use under GNU GPL v2 or later.

Platforms

TestDisk supports Linux, macOS and Windows. Its operating-system support also includes DOS, FreeBSD, NetBSD, OpenBSD and SunOS. The maker lists recovery support for memory cards and RAID, as well as bootable recovery and file preview.

Who it's for

Choose TestDisk when the problem is a lost partition, damaged partition table, or FAT/NTFS boot structure, or when its supported filesystems and storage sources match the recovery job. Its no-cost license, portability and stated offline behavior are useful for users who value those qualities. Look elsewhere if you need broad undelete coverage beyond the supported filesystems or want a different recovery approach.

Pros and cons

Pros

• Broad partition format coverage: The listed support spans APFS, FAT, exFAT, HFS+, ext2/ext3/ext4, NTFS, XFS and ZFS.
• Multiple repair tasks in one free utility: Partition recovery, boot repair and selected file recovery are included at no charge.
• Portable and open source: It needs no installer and is licensed under GNU GPL v2 or later.
• Wide system and storage reach: It supports Linux, macOS and Windows, with additional OS support and recovery sources including RAID devices.

Cons

• File recovery has a narrower scope than partition recovery: Undelete is limited to FAT, exFAT, NTFS and ext2; file copying from deleted partitions covers ext2/ext3/ext4 in addition to FAT, exFAT and NTFS.
• Two release entries differ in maturity: The 7.3-WIP download is beta, while the other listed release is version 7.2 dated February 22, 2024.

Alternatives

For broader comparisons, browse Data recovery software, RAID Data Recovery Software, Photo Recovery Software, SD Card Recovery Software and Partition Recovery Software.

• EaseUS Data Recovery Wizard is a freemium alternative for Android, iOS, macOS and Windows; choose it if you need its wider platform range rather than TestDisk's partition and boot-repair focus. Its One-Month plan costs $69.95 a month as a one-time fee, with no renewal fees, one computer and one month of free upgrades.
• Disk Drill is a freemium option for macOS and Windows. Its Windows free edition limits recovery to 100 MB, so TestDisk may suit users who want its free partition and boot-repair functions instead.
• MiniTool Power Data Recovery offers a free home-user license with a 1 GB recovery limit on macOS and Windows. Consider it if that capped free file-recovery allowance better fits your needs than TestDisk's targeted recovery functions.
• AOMEI FastRecovery is a Windows freemium alternative whose free plan includes recovery up to 500 MB, storage-device scanning and full-file preview.
• EaseUS MobiSaver is a macOS and Windows freemium alternative. Its free edition allows one photo and video each time and five contacts each time.
• Recuva is a Windows freemium alternative with a free plan for advanced file recovery.
• Wise Data Recovery is a Windows freemium alternative whose free plan allows 2 GB of recovery on unlimited computers.
• Hasleo Data Recovery is a Windows freemium alternative with a free home-user plan that includes a 2 GB recovery allowance by default.

Verdict

TestDisk is a strong fit for users who need free partition recovery or targeted FAT/NTFS boot repair and can work with its portable utility. Its format coverage, open-source license and range of supported systems make it a practical specialist. Look elsewhere if your priority is broader file undelete coverage or a recovery product built around a different workflow.