How to Open Oracle DMP Files Without Oracle [Free Tool]
Need to open an Oracle Database EXPORT file (.dmp) but don't have an Oracle environment? This is a surprisingly common situation:
- You received a dump file from another company and need to check its contents
- You can't access the source system but need to see the table structures
- You need to recover data from a legacy system whose Oracle license has expired
This article shows you step-by-step how to open DMP files using OraDB DUMP Viewer, a free tool that requires absolutely no Oracle installation.
What is OraDB DUMP Viewer?
OraDB DUMP Viewer is a Windows desktop tool that can parse and browse Oracle EXP format (Oracle 7–11g) and EXPDP (Data Pump) format (Oracle 10g–23ai) .dmp files — without Oracle Database or Oracle Client.
It's free for personal and educational use, with all features included.
Key Features
| Feature | Description |
|---|---|
| Supported Formats | EXP (Legacy Export) and EXPDP (Data Pump) |
| Schema Tree | Hierarchical schema → table tree to understand structure at a glance |
| Data Preview | Paginated viewing for tables with millions of rows |
| Advanced Search | 12 operator types × AND/OR compound conditions to locate data instantly |
| Export Options | CSV, SQL (Oracle/PostgreSQL/MySQL/SQL Server), Excel, Access, ODBC, LOB extraction |
| 10 Languages | Japanese, English, Chinese, Korean, German, French, Spanish, Italian, Russian, Portuguese |
Download and Install
Option 1: Installer (MSI)
- Download the latest
.msifile from GitHub Releases - Run the MSI and follow the installation wizard
Option 2: Portable (ZIP)
- Download the
.zipfrom GitHub Releases - Extract to any folder and run
OraDBDumpViewer.exe
Option 3: winget (Recommended)
winget install OraDBDumpViewer.OraDBDumpViewerHow to Open a DMP File
- Launch OraDB DUMP Viewer
- Go to File → Open and select your .dmp file (or drag and drop it onto the window)
- Once analysis is complete, the schema and table tree appears in the left panel
- Click a table to preview its data in the right panel
Even large files load quickly thanks to the C native DLL high-speed parser — the table list appears almost instantly.
Useful Tips
Searching Table Data
The Search panel supports 12 operator types (contains, starts with, ends with, null check, etc.) combined with AND/OR compound conditions, letting you quickly extract exactly the rows you need from massive datasets.
Exporting Data
Table data can be exported in the following formats:
- CSV (RFC 4180 compliant)
- SQL (INSERT statements — choose Oracle / PostgreSQL / MySQL / SQL Server syntax)
- Excel (.xlsx)
- Access (.accdb)
- SQL Server direct import
- ODBC to any database
Saving Your Workspace
Save your working state to an .odvw file to resume from exactly where you left off next time — including table exclusions and display settings.
Licensing
| Plan | Price | For |
|---|---|---|
| Personal | Free | Individuals & students |
| Education | Free | Schools & research |
| Professional | $32/year | Freelancers & sole proprietors |
| Business | $65/year | Companies & commercial use |
All plans include every feature. Paid plans are only required for commercial use.
Summary
With OraDB DUMP Viewer, you can instantly inspect .dmp file contents without the hassle of setting up an Oracle environment or acquiring Oracle licenses. Use it for pre-migration assessment, legacy data recovery, data validation, and more.