Stellar Data Recovery vs TestDisk
Side-by-side comparison of features, pricing, ratings, and alternatives.
Stellar Data Recovery is a file-recovery software suite for Windows and Mac that scans hard drives, SSDs, USB drives, memory cards, and RAID/NAS storage to recover deleted, lost, or inaccessible photos, videos, documents, and emails. The company reports more than 30 years in the data-recovery business and multiple product tiers for individuals, technicians, and businesses. Beyond basic undelete recovery, Stellar's tools handle corrupted Outlook PST and Exchange EDB files, damaged Office and PDF documents, and photo or video files with structural corruption. A free scan lets users preview recoverable files before choosing a paid tier to actually restore them.
TestDisk is a free, open-source data recovery utility that fixes partition tables and recovers lost partitions when problems stem from software faults, viruses, or user error. It can rebuild damaged or deleted partitions for FAT, NTFS, exFAT, and other filesystems, repair boot sectors, fix FAT tables, and rebuild the NTFS Master File Table using its mirror copy. It also undeletes individual files from FAT, exFAT, NTFS, and ext2 filesystems and ships bundled with PhotoRec, a companion tool for recovering lost photos, videos, and documents. TestDisk runs from a text-based menu interface on DOS, Windows, Linux, macOS, and several BSD variants, and is licensed under the GPL.
- Broad format coverage spanning photos, documents, email, and databases in one suite.
- Free scan and preview before paying reduces the risk of buying software that will not find your files.
- Supports advanced scenarios like RAID, NAS, and virtual machine recovery.
- Long-established vendor with decades of focus specifically on recovery software.
- Completely free and open source with no limitations
- Works across nearly every major OS and filesystem
- Frequently recommended and battle-tested by IT professionals
- Includes PhotoRec for broader file recovery needs
- Full pricing is not transparently listed and often requires checking a cart or contacting sales.
- Higher-tier business and toolkit editions are priced for professionals, not casual users.
- Deep scans of large drives can take a long time to complete.
- Text-based interface is intimidating for non-technical users
- No official GUI version
- Requires care to avoid making a damaged disk worse if used incorrectly
More alternatives & similar tools
Alternatives to Stellar Data Recovery
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Data recovery software that restores deleted or lost files from drives, memory cards, and mobile devices.
Alternatives to TestDisk
View all →Recovers lost, deleted, or corrupted files from drives, memory cards, and RAID/NAS storage.
A Windows disk and partition manager for resizing, converting, and repairing drives safely.
The Verdict
AI-generated from listing dataTestDisk is a free, open‑source tool ideal for technically skilled users needing low‑cost partition and file recovery, while Stellar offers a richer GUI, broader format support, and paid support for less‑technical or business users.
Key differences
- •Cost: TestDisk is completely free; Stellar uses a freemium model with paid licenses for full recovery.
- •Interface: TestDisk is text‑based only; Stellar provides a graphical UI with preview before purchase.
- •Scope of recovery: TestDisk focuses on partitions, boot sectors, and basic file undelete; Stellar adds email, database, RAID/NAS, and VM disk image recovery.
- •Support: TestDisk relies on documentation and community forums; Stellar offers live chat, phone, and email support.
- •Open‑source vs proprietary: TestDisk is open source; Stellar is closed‑source commercial software.
Pricing & value
TestDisk is free with full functionality; Stellar requires paid license for actual recovery beyond preview.
Ease of use / learning curve
Stellar provides a GUI and preview mode; TestDisk uses a text‑based menu that can intimidate non‑technical users.
Features & depth
Stellar covers email, databases, RAID/NAS, VM images, and file‑repair tools; TestDisk is limited to partitions, boot sectors, and basic undelete.
Integrations & ecosystem
Stellar lists integrations with Outlook, Exchange, RAID/NAS; TestDisk has no listed integrations.
Support
Stellar offers live chat, phone, and email; TestDisk only provides documentation and community forum.
Security & privacy
TestDisk is open source, allowing full code transparency; Stellar is closed source with no disclosed privacy details.
Scalability
Stellar’s RAID/NAS and VM recovery features target larger, more complex environments; TestDisk is primarily single‑disk focused.
Choose Stellar Data Recovery if…
Individuals or small businesses wanting a GUI, broader format support, and paid support for diverse recovery scenarios.
Choose TestDisk if…
Technical IT staff needing free, low‑level partition and file recovery on many OSes.
Common questions
Can I recover deleted emails with TestDisk?
No, TestDisk does not list email recovery; Stellar includes Outlook and Exchange PST/EDB repair.
Do I need to pay to see what files can be recovered?
Stellar offers a free scan with preview; full recovery requires a paid license. TestDisk is fully free.
Which tool works on macOS?
Both run on macOS, but TestDisk uses a text‑based interface; Stellar provides a graphical UI.