Guiffy
Guiffy is a visual tool for comparing and merging source files and comparing folders, available for Linux, macOS, and Windows.
What Guiffy is
Guiffy is a visual tool for comparing and merging source files and comparing folders, available for Linux, macOS, and Windows. Its diff tool supports Unicode, MBCS, SJIS, and more than 150 encoding and character-set formats, with syntax highlighting for more than 20 source file types. It uses 64-bit I/O for files larger than 2 GB. Folder Compare can examine directory trees recursively, include archive files, and run file synchronization operations. Guiffy Pro provides file and folder comparison; Guiffy eXpert adds SureMerge, which detects conflicts in a three-way merge and lets users edit and resolve changes. Integrations include Git, SVN, ClearCase, and Perforce, alongside desktop integrations, command-line tools, and an API. Guiffy is paid, with a fully enabled 21-day evaluation. Pro is $24, paid once per user, and eXpert is $48, paid once per user; both licenses include 12 months of support and updates and permit use on unlimited platforms. The company has announced it will close on December 31, 2026, when its products reach end of life.
Good
- Supports more than 150 encoding formats.
- Highlights syntax for more than 20 source types.
- Compares files larger than 2 GB.
- eXpert includes three-way merge conflict detection.
- A 21-day evaluation is fully enabled.
Watch out
- Products reach end of life on December 31, 2026.
- No free plan is listed.
- Paid licenses include 12 months of support and updates.
Who it suits
Guiffy suits developers who need visual file or folder comparisons, or three-way merge conflict handling. Its stated end-of-life date is important for anyone considering it for ongoing use.
Verdict
Guiffy covers file comparison, folder comparison, and, in eXpert, three-way merging with conflict resolution. Its announced end-of-life date should factor into any decision to adopt it.
Plans and prices
From Guiffy's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Guiffy Pro | $24, paid once | File and folder compare features · 12 months of support and updates · one user license covers an unlimited number of platforms · Per user, multi-user price; the page gives no billing schedule. |
| Guiffy eXpert | $48, paid once | SureMerge · API · SCM integration tools · IDE plugins · command line tools · 12 months of support and updates · Per user, multi-user price; the page gives no billing schedule. |
The facts
Each one read from Guiffy's own pages, with the date it was checked.
What it does
- File encodings
- The diff tool supports Unicode, MBCS, SJIS, and more than 150 file encoding and character set formats.checked 8 Oct 2026
- Folder comparison
- Folder Compare supports recursive file tree comparison, archive files, and file synchronization operations.checked 8 Oct 2026
- Integrations
- The maker lists Git, SVN, ClearCase, and Perforce integrations, as well as desktop integrations, command-line interfaces, and an API.checked 8 Oct 2026
- Large files
- The diff tool uses 64-bit I/O to support files larger than 2 GB.checked 8 Oct 2026
- License terms
- Each user license allows use on an unlimited number of platforms and includes 12 months of support and updates.checked 8 Oct 2026
- Merge
- Guiffy eXpert includes SureMerge, a three-way merge tool with change conflict detection and user editing and resolution.checked 8 Oct 2026
- Product
- Guiffy is a visual file comparison, merge, and folder comparison tool for comparing and merging source files.checked 8 Oct 2026
- Product status
- The company announced that it will close on December 31, 2026, and that all products will reach end of life on that date.checked 8 Oct 2026
- Refund policy
- The purchase page states an honor-based 30-day money-back guarantee for customers who request a refund within 30 days of purchase.checked 8 Oct 2026
- Support
- The maker describes support through email, user groups, and telephone contact with live support personnel.checked 8 Oct 2026
- Syntax highlighting
- The diff tool provides syntax highlighting for more than 20 source file types.checked 8 Oct 2026
Money
- Trial
- The downloads page offers free, fully enabled 21-day evaluations.checked 8 Oct 2026
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