Compare and Sync MS Access Projects and Data

AccdbMerge is an easy to use diff & merge tool for Microsoft Access database files:

Compare and sync schema, programming objects and data
GUI for Windows + CLI for data-only automation
Free version — no signup, no ads, no telemetry
Standard version — full features, 14-day free trial
For Access 2007 – 2024 and Microsoft 365

Screenshots and Use Cases

Scroll the gallery and click on the image title to open the use case with detailed steps.
Use the toggle to switch application modes, if applicable.
Or explore the app's key features by watching our short video walkthrough (about 3 minutes).

AccdbMerge - Project changes summary (thumbnail)

AccdbMerge - Data changes summary (thumbnail)

AccdbMerge - Data diff and merge (thumbnail)

AccdbMerge - Compare ad-hoc query result (thumbnail)

AccdbMerge - Compare and synchronize table definition (thumbnail)

AccdbMerge - Automation and Scripting (thumbnail)

AccdbMerge - Objects diff and merge (thumbnail)

Project changes summary

Data changes summary

Compare table data

Compare ad hoc query result

AccdbMerge - Compare and synchronize table definition

AccdbMerge Free - Compare and synchronize table definition

Compare table schema

Automation

AccdbMerge Free - Objects diff and merge

Compare list of objects

Compare object definition

Free vs Standard

	Free	Standard, perpetual license
Price (USD, excluding VAT):	$0	Single-user personal license:	$80 BUY NOW
		Multi-user license for companies and organizations:	Starting at $105 per user, volume discounts: 5 users: $375 ($75 per user) 10 users: $700 ($70 per user) 20 users: $1200 ($60 per user) BUY NOW
		Payments are handled externally by PayPro Global (Toronto, Canada), transactions are encrypted and secure Includes a one year of free upgrades More about purchasing, license types and discounts
Compare schema and programming objects:	Table definitions (field name and type) ^{merge new only} Queries Forms Reports Macros Modules	Table definitions (field name, type and properties; indexes; data macros; linked table definitions) Relations Queries Forms Reports Macros Modules Import/export specifications Ribbons References ^{diff only} Database properties ^{diff only}
Compare data:	Per table ^{with limitations}	Per table Per query Any table/query vs any other table/query ^{merge only if target updateable} Any custom query result ^{diff only} Batch data diff across multiple tables, queries, custom mappings and custom queries Data slices (customized subset of Batch data diff)
Other Standard features:	N/A	Diff profiles Export to Xlsx and Json Application customization Protected files support Data diff & merge automation Misc. other enhancements: scrollbars colored with changes summary, navigation thru changes, advanced search, etc. More about Standard features

Free	Standard, perpetual license
Price (USD, excluding VAT):
$0	Single-user personal license: $80 BUY NOW Multi-user license for companies and organizations: Starting at $105 down to $60 per user BUY NOW More about purchasing and license types
Compare schema and programming objects:
Table definitions (field name and type) ^{merge new only} Queries Forms Reports Macros Modules	Table definitions (field name, type and properties; indexes; data macros; linked table definitions) Relations Queries Forms Reports Macros Modules Import/export specifications Ribbons References ^{diff only} Database properties ^{diff only}
Compare data:
Per table ^{with limitations}	Per table Per query Any table/query vs any other table/query ^{merge only if target updateable} Any custom query result ^{diff only} Batch data diff across multiple tables, queries, custom mappings and custom queries Data slices (customized subset of Batch data diff)
Other Standard features:
N/A	Diff profiles Export to Xlsx and Json Application customization Protected files support Data diff & merge automation Misc. other enhancements: scrollbars colored with changes summary, navigation thru changes, advanced search, etc. More about Standard features

If you have any questions, please contact us.