BlastMerge is a revolutionary file synchronization tool that uses intelligent iterative merging to unify multiple versions of files across repositories, directories, and codebases.
Unlike traditional diff tools, BlastMerge progressively merges file versions by finding the most similar pairs and resolving conflicts interactively, ultimately synchronizing entire file ecosystems into a single, unified version.
Key Features:
- Smart Discovery: Automatically finds all versions of a file across directories/repositories
- Hash-Based Grouping: Groups identical files and identifies unique versions
- Similarity Analysis: Calculates similarity scores between all version pairs
- Optimal Merge Order: Progressively merges the most similar versions first to minimize conflicts
- Interactive Resolution: Visual TUI for resolving conflicts block-by-block
- Cross-Repository Sync: Updates all file locations with the final merged result
Publisher’s description
What is BlastMerge?
BlastMerge is an open-source version control program for Windows from ktsu.dev. It is written in C#.
Installation and requirements
Official installers exist for 64-bit, ARM64 and 32-bit as Portable. It runs without installation (portable). It needs Windows 10 1809 or newer.
Updates and version history
The current version is 1.0.21, released on June 18, 2025. 2 versions are listed since June 3, 2025, each with links to its own installer files. The last update is more than a year old.
Popularity and file types
The source code on GitHub (ktsu-dev/BlastMerge) has 1 stars. On Windows it registers 15 file types, including .java, .txt, .md, .xml and .py. Similar programs include GitHub CLI, Git and GitTools GitVersion.
Project description on GitHub: “Cross-repository file synchronization tool that uses intelligent iterative merging to unify multiple file versions with interactive conflict resolution.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Native ARM64 build for Windows on Arm
- Portable: runs without installation
Cons
- No update for more than a year
In short: BlastMerge is an open-source version control tool for 64-bit, ARM64 and 32-bit PCs. Updates have slowed down.
Is BlastMerge safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
D7656127A7060D9364333DB9EEBB8BADF6F423C1FAE62667AFFF5947579A9B12· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.0.21Latest | June 18, 2025 | — | ARM64 ZIP32-bit ZIP64-bit ZIP |
| 1.0.19 | June 3, 2025 | — | ARM64 ZIP64-bit ZIP32-bit ZIP |
Install from the command line
Silent install ›winget install --id ktsu.BlastMerge -eProgram files (.exe): blastmerge.exe, blastmerge.consoleapp.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- ktsu.dev
- Category
- Version control
- Licence
- MIT
- Price
- Free
- Source code
- github.com/ktsu-dev/BlastMerge
- Written in
- C#
- Requires
- Windows 11 / 10 (Windows 10 1809+)
- Architecture
- 64-bit, ARM64, 32-bit
- Installer
- Portable
- Version
- 1.0.21
- Released
- June 18, 2025
- Added to the catalogue
- June 6, 2025
- Versions listed
- 2
- GitHub stars
- 1
- Website
- github.com
- winget ID
- ktsu.BlastMerge
File types it opens (15)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is BlastMerge free?
Yes. BlastMerge is open-source software under the MIT licence.
Is BlastMerge safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install BlastMerge with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Which Windows versions does BlastMerge support?
The installer requires Windows 10 1809 or newer and is available for 64-bit, ARM64 and 32-bit.
Does BlastMerge run on ARM (Windows on Arm)?
Yes, there is a native ARM64 installer.
Where can I download an older version of BlastMerge?
The versions page lists all 2 versions with links to their official installer files, back to June 3, 2025.
Can I use BlastMerge without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to BlastMerge?
GitHub CLI, Git, GitTools GitVersion, Git Extensions and Mercurial. The alternatives page compares them.
