Altova DiffDog

Spec sheet

Purpose

DiffDog compares and merges text and source-code files, XML and JSON files, Word documents, directories, and database schemas and content.Read 8 Oct 2026 · altova.com

Intended users

Altova describes DiffDog as a technical diff/merge tool for developers and IT professionals.Read 8 Oct 2026 · altova.com

Trial

The trial unlocks all features for 30 days after the user requests an evaluation license, which is sent by email.Read 8 Oct 2026 · altova.com

Headquarters

Vienna, Austria; Marblehead, Massachusetts, United StatesRead 28 Sep 2026 · altova.com

Founded

1992Read 28 Sep 2026 · altova.com

Automation integration

DiffDog Server can automate high-volume comparisons and generate reports for files, directories, and URLs.Read 8 Oct 2026 · altova.com

Database changes

Enterprise Edition compares database schemas and table contents, including across database types, and generates SQL change scripts for merging differences.Read 8 Oct 2026 · altova.com

Database integrations

The product lists support for Firebird, DB2, Informix, MariaDB, Access, Azure SQL, SQL Server, MySQL, Oracle, PostgreSQL, Progress OpenEdge, SQLite, Sybase ASE, and Teradata.Read 8 Oct 2026 · altova.com

Download platform

Altova provides a self-contained DiffDog installer with operating-system selection on its download page.Read 8 Oct 2026 · altova.com

File merging

It supports bidirectional merging, direct editing of compared files, and unlimited undo and redo.Read 8 Oct 2026 · altova.com

Folder synchronization

DiffDog can compare and synchronize directories, including ZIP archives and OOXML files.Read 8 Oct 2026 · altova.com

Maker history

Altova says it was founded in 1992 and is headquartered in Beverly, Massachusetts, and Vienna, Austria.Read 8 Oct 2026 · altova.com

Microsoft Word requirement

Word document comparison requires Microsoft Word 2003 or later installed on the computer.Read 8 Oct 2026 · altova.com

Reports

DiffDog exports file and directory difference reports in text, XML, or HTML formats.Read 8 Oct 2026 · altova.com

Three-way comparison

Enterprise Edition supports three-way file comparison with difference merging.Read 8 Oct 2026 · altova.com

XML-aware comparison

XML comparison options include entity resolution, ignoring attribute order, well-formedness checks, validation, and schema-based editing help.Read 8 Oct 2026 · altova.com

Plans and prices

Every Altova DiffDog plan and price →

Where Specifiction places it

• File Comparison Software#4 of 338.3
• Diff and Merge Tools#4 of 298.3
• Database Schema Comparison Tools#4 of 258.3