Can I view data from a corrupted MDF file?

Yes, Univik MDF Viewer can open and read data from detached, offline and mildly corrupted MDF files, recovering table data even when SQL Server cannot attach the database.

Univik MDF File Viewer

Excellent 4.8 TrustRating (412 Verified Reviews)

Open & Read SQL Server MDF Database Files Free

Univik MDF File Viewer is a free tool to open and read SQL Server MDF database files without SQL Server installed. Browse tables, preview records, inspect schema and export data to CSV or Excel - all from a clean desktop interface with no database configuration needed.

Free Download
100% Free Software

View Features

*Completely free for personal and commercial use. No trial limitations.

No SQL Server Required: Open and read MDF files on any Windows PC - no database engine, SSMS or server setup needed.
Full Schema Access: Browse tables, views, stored procedures, columns, data types, primary keys and indexes.
Live Data Preview: View actual records from any table with sortable grid display and row count information.
100% Free & Offline: Completely free desktop software. No internet, no registration, no trial limits.

Univik MDF Viewer Box

100% Free Software

No trial limits, no registration required. Free for personal and business use.

Viewable Database Properties

Table Names

Column Names

Data Types

Row Count

Primary Keys

Indexes

Views

Stored Procedures

Constraints

Foreign Keys

Key Features

Why use Univik MDF Viewer

Access your SQL Server MDF database instantly without installing SQL Server or SSMS. Browse schema, preview records and export data with ease.

Open MDF Without SQL Server

Open and read SQL Server MDF database files without installing SQL Server, SSMS or any database engine. The viewer reads the MDF format directly and works independently. Access detached or orphaned databases on any Windows computer, even those that never had SQL Server installed.

Browse Complete Database Schema

Navigate through the full database schema in the left panel. All tables, views, stored procedures and functions are listed in a familiar tree structure. Expand any table to see its columns, data types, nullability and constraints. Click any object to inspect it instantly.

Preview Live Table Data

View actual records from any table in a clean sortable data grid. All column values display with correct formatting for text, numbers, dates, GUIDs and binary data. Row count per table is shown in the schema tree. Navigate through large tables with pagination controls.

Quick Inspection Export

Save the current table view as CSV or Excel for quick reference, spot checks or sharing a data snapshot with your team. Ideal for documenting what you found during inspection. For full multi-table database conversion and schema migration, use Univik MDF Converter.

Search Table Data

Find specific records quickly with built-in search functionality. Search by value across all columns in a table or target specific fields. Filter results to narrow down records in large datasets. Locate rows in tables containing millions of records without writing SQL queries.

View Keys, Indexes and Constraints

Inspect the complete table structure including primary keys, foreign keys, unique constraints and indexes. View index type, included columns and fill factor. Foreign key relationships show referenced tables and columns for a full picture of database integrity rules.

Open Detached and Offline MDF Files

Open MDF files that were detached from a SQL Server instance, recovered from backup or copied from another server. Works with databases from SQL Server 2000, 2005, 2008, 2012, 2014, 2016, 2017, 2019 and 2022. No server attachment or restore operation required.

View Stored Procedures and Views

Read the source definition of stored procedures, functions and views stored in the MDF file. Useful for auditing database logic, recovering lost code or documenting a database schema. All programmable objects are listed alongside tables in the schema tree.

Simple Steps to View MDF

How to Open & Read MDF Files

Open your SQL Server MDF file, browse the schema and start viewing records in seconds.

Step 1: Open MDF File

Launch MDF Viewer and click "Open File" to select your SQL Server MDF database file.

Step 2: Browse Tables

Navigate through the schema tree in the left panel. Click any table, view or procedure to inspect it.

Step 3: View and Export Data

Click any table to load records in the data grid. Export to CSV or Excel directly from the toolbar.

Quick Start Guide

Download & Install: Download free Univik MDF Viewer and install on Windows. Takes less than a minute.
Locate MDF File: Find your SQL Server MDF file - typically in the SQL Server DATA folder or your backup location.
Open File: Click "Open File" button and select your MDF file. The schema tree loads instantly in the left panel.
Browse Schema: Expand tables, views and procedures in the left panel to inspect database objects and their structure.
View Records: Click any table name to load its data in the grid. Rows display with all column values correctly formatted.
Search or Export: Use the search bar to filter records, or click Export to save table data as CSV or Excel.

Viewer Interface

Clean & Intuitive Design

A modern three-panel interface designed for efficient database browsing and data inspection.

Schema Panel

Left Panel

Tree view of all tables, views, stored procedures and functions. Expand to see columns, keys and indexes. Click any object to load it.

Column Details Panel

Center Panel

Shows column names, data types, length, nullability, defaults and key/index membership for the selected table.

Data Grid Panel

Bottom/Right Panel

Sortable grid showing all records from the selected table. Paginated display with row count, column sorting and value search.

Toolbar Features

Open File: Load MDF files from any location
Search: Filter records by value or column
Export CSV: Save table data as comma-separated file
Export Excel: Save table data as XLSX spreadsheet
Refresh: Reload schema and data from file
Zoom: Adjust data grid font size

Keyboard Shortcuts

Ctrl+O: Open MDF file
Ctrl+F: Search records
Ctrl+E: Export current table
Up/Down: Navigate schema tree
Enter: Load selected table data
Ctrl+S: Save exported file

Use Cases

When to Use MDF Viewer

Common scenarios where the free MDF Viewer is the perfect solution for accessing SQL Server database files.

Database Audit

Inspect a SQL Server MDF file to audit table structure, stored procedures and data without attaching the database to a live server. Useful for compliance reviews and code audits.

Pre-Recovery Inspection

Before running a costly database repair, open the MDF in the viewer to see which tables are still readable and how many rows are accessible. Assess the damage first. To actually extract and export those rows, use MDF Converter.

Schema Documentation

Document database structure by browsing tables, columns, keys and indexes without a live SQL Server connection. Export column lists and schema details for documentation or handoff.

Developer Inspection

Developers needing to inspect a client database backup or a staging MDF file can open it directly without configuring a local SQL Server instance. Saves hours of database server setup time.

Forensic Evidence Review

Forensic analysts can open MDF files from seized devices and browse tables and records without modifying the source file. The viewer operates read-only, preserving chain of custody during the initial evidence review.

Pre-Migration Assessment

Browse table sizes, row counts and column structure to plan your migration accurately before committing to it. Once you know what needs moving, hand off to Univik MDF Converter to perform the actual export.

Technical Details

Software Specifications

System Requirements

Operating System	Windows 11, 10, 8.1, 8, 7
Processor	1 GHz or faster
RAM	512 MB minimum
Disk Space	35 MB for installation
.NET Framework	4.8 or higher

Software Information

Version	6.3 (Latest)
File Size	14.2 MB
License	Freeware (100% Free)
Support	Email & Live Chat

Supported Features

SQL Server Versions

SQL Server 2022, 2019, 2017
SQL Server 2016, 2014, 2012
SQL Server 2008 R2, 2005, 2000

View Capabilities

Tables, views, procedures, functions
Column definitions and data types
Primary keys, foreign keys, indexes
Live record data with pagination

Export Options

CSV (comma-separated values)
Excel XLSX spreadsheet
Batch export multiple tables
Offline - no internet required

Frequently Asked Questions

Common Questions

Yes, Univik MDF File Viewer is completely free for both personal and commercial use. There are no trial limitations, no registration required and no hidden costs. Download, install and use without any restrictions.

No, SQL Server is not required. MDF Viewer reads the MDF file format directly and works completely independently. You can view MDF files on any Windows computer, even if SQL Server was never installed on that machine.

SQL Server MDF files are typically stored in the SQL Server data directory. The default location is C:\Program Files\Microsoft SQL Server\MSSQL[version].MSSQLSERVER\MSSQL\DATA\. You can also search your drives for files with the .mdf extension.

Yes. MDF Viewer opens MDF files directly from disk without requiring them to be attached to a running SQL Server instance. This is the primary use case — open any detached, copied or backed-up MDF file and browse its contents immediately without any database configuration.

MDF Viewer is for reading and inspecting — browse schema, preview table records, audit stored procedures and export a quick CSV or Excel snapshot of any table for reference. MDF Converter is for migration and bulk export — batch-export all tables to MySQL, SQLite, JSON, PDF and 10+ formats with full schema migration, row filtering and referential integrity. If you are still deciding what to export, start with the free Viewer. When you are ready to migrate, switch to Converter.

Yes. The schema tree in the left panel lists tables, views, stored procedures and scalar/table-valued functions. Click any object to see its definition or data. This makes the viewer useful for auditing database logic and recovering source code from MDF files where the original development database is no longer accessible.

Yes. Select any table, enter a value in the search bar and the data grid filters to matching rows instantly. You can also click column headers to sort. No SQL knowledge is needed — the viewer is designed for non-technical users to browse database contents without writing queries.

MDF Viewer is designed for read-only browsing and quick inspection exports. For a full database migration to MySQL, SQLite, JSON, PDF or other formats — including schema and referential integrity — you need Univik MDF Converter. A common workflow is to inspect with the free Viewer first, then convert with MDF Converter once you know exactly what needs migrating.

Customer Reviews

What Users Say About Us

Michael R.

Database Administrator

"Our SQL Server went down and I needed to pull records from an MDF backup immediately. This viewer opened the file in seconds and I was able to export the data I needed without any database reinstall. Absolute lifesaver."

Sarah P.

Software Developer

"I needed to inspect a client's legacy database but didn't want to spin up a full SQL Server instance for a one-time review. This tool let me browse the schema and preview the data in minutes. Exactly what I needed."

Andrew K.

IT Manager

"Used this to verify data in an MDF file recovered after a server failure. The export to Excel worked perfectly and saved us from hours of manual recovery work. Free software but genuinely professional quality."

Ready to View Your SQL Server Database?

Download the free MDF Viewer and start browsing your SQL Server database files today.

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Ready to export or migrate your MDF database?

MDF Viewer is free for browsing and inspection. When you need to batch-export tables to MySQL, SQLite, JSON, PDF or 10+ other formats — with full schema migration and row filtering — upgrade to Univik MDF Converter.

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