Best File Comparison Software in 2026
Updated
In short: Diffract is ranked #1 of 30 as of 4 October 2026, ahead of Meld and WinMerge. The best-ranked option with a free plan is Meld. The lowest first paid tier on this page is Kaleidoscope at $0.67/mo.
File comparison software helps you inspect differences across files and folders and work through edits from multiple versions. Compared on binary and folder comparison, three-way merge, merge conflict tools, and version-control support, these entries can be weighed against the kind of review you do. Supported platforms, free plans, and paid starting prices add practical considerations. Diffract, Meld, and WinMerge lead the names shown, with Diffchecker and SmartSynchronize also among the early entries. Consider whether you need to compare binary contents, examine whole folders, or bring conflicting changes together, then focus on the corresponding capabilities and platform support.
30 file comparison software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Diffract No phone app RecognisedPhone appDocumentedFree plan 8.0Free Three-way merge: YesFolder comparison: Yes
- 2 Meld No phone app RecognisedPhone appDocumentedFree plan 7.8Free Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
- 3 WinMerge No phone app RecognisedPhone appDocumentedFree plan 7.7Free Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
- 4 Diffchecker No phone app RecognisedPhone appDocumentedFree plan 7.6$15/mo Folder comparison: Yes
- 5 Beyond Compare No phone app RecognisedPhone appDocumentedFree plan 7.4 Three-way merge: YesFolder comparison: Yes
- 6 Beyond Compare No phone app RecognisedPhone appDocumentedFree plan 7.4 Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
- 7 Code Compare No phone app RecognisedPhone appDocumentedFree plan 7.4Free Three-way merge: YesFolder comparison: Yes
- 8 P4Merge No phone app RecognisedPhone appDocumentedFree plan 6.9 Three-way merge: YesFolder comparison: Yes
- 9 SmartSynchronize No phone app RecognisedPhone appDocumentedFree plan 6.9 Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
- 10 DeltaWalker No phone app RecognisedPhone appDocumentedFree plan 6.5 Three-way merge: YesFolder comparison: Yes
- 11 UltraCompare No phone app RecognisedPhone appDocumentedFree plan 6.5 Three-way merge: YesFolder comparison: Yes
- 12 NextDiff No phone app RecognisedPhone appDocumentedFree plan 6.4Free Folder comparison: YesMerge conflict tools: Yes
- 13 TkDiff No phone app RecognisedPhone appDocumentedFree plan 6.2 Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
- 14 ExamDiff Pro No phone app RecognisedPhone appDocumentedFree plan 5.9 Three-way merge: YesFolder comparison: Yes
- 15 Araxis Merge No phone app RecognisedPhone appDocumentedFree plan 5.9 Three-way merge: YesFolder comparison: Yes
- 16 FolderMatch No phone app RecognisedPhone appDocumentedFree plan 5.9 Folder comparison: Yes
- 17 KDiff3 No phone app RecognisedPhone appDocumentedFree plan 5.8 Three-way merge: YesFolder comparison: Yes
- 18 Altova DiffDog No phone app RecognisedPhone appDocumentedFree plan 5.7 Three-way merge: YesFolder comparison: Yes
- 19 Kaleidoscope No phone app RecognisedPhone appDocumentedFree plan 5.7$0.67/mo Three-way merge: YesFolder comparison: Yes
- 20 Compare It! No phone app RecognisedPhone appDocumentedFree plan 5.6 Three-way merge: NoFolder comparison: Yes
- 21 Guiffy No phone app RecognisedPhone appDocumentedFree plan 5.5 Three-way merge: YesFolder comparison: Yes
- 22 Avidemux No phone app RecognisedPhone appDocumentedFree plan 5.5Free
- 23 Diffinity No phone app RecognisedPhone appDocumentedFree plan 5.4 Three-way merge: NoFolder comparison: Yes
- 24 DirEqual No phone app RecognisedPhone appDocumentedFree plan 5.3 Folder comparison: Yes
- 25 AmSo Compare No phone app RecognisedPhone appDocumentedFree plan 5.2 Three-way merge: YesFolder comparison: YesMerge conflict tools: Yes
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Three-way merge | Folder comparison |
|---|---|---|---|---|---|---|---|---|
| 1 | Diffract | 8.0 | Free plan | Free | Yes | — | Yes | Yes |
| 2 | Meld | 7.8 | Free plan | Free | Yes | — | Yes | Yes |
| 3 | WinMerge | 7.7 | Free plan | Free | Yes | — | Yes | Yes |
| 4 | Diffchecker | 7.6 | Free plan | $15/mo | Yes | 15 /user/mo | — | Yes |
| 5 | Beyond Compare | 7.4 | No | — | No | — | Yes | Yes |
| 6 | Beyond Compare | 7.4 | No | — | No | — | Yes | Yes |
| 7 | Code Compare | 7.4 | Free plan | Free | Yes | — | Yes | Yes |
| 8 | P4Merge | 6.9 | No | — | Yes | — | Yes | Yes |
| 9 | SmartSynchronize | 6.9 | No | — | Yes | — | Yes | Yes |
| 10 | DeltaWalker | 6.5 | No | — | No | — | Yes | Yes |
| 11 | UltraCompare | 6.5 | No | — | No | — | Yes | Yes |
| 12 | NextDiff | 6.4 | Free plan | Free | Yes | — | — | Yes |
| 13 | TkDiff | 6.2 | No | — | Yes | — | Yes | Yes |
| 14 | ExamDiff Pro | 5.9 | No | — | No | — | Yes | Yes |
| 15 | Araxis Merge | 5.9 | No | — | No | — | Yes | Yes |
| 16 | FolderMatch | 5.9 | No | — | — | — | — | Yes |
| 17 | KDiff3 | 5.8 | No | — | — | — | Yes | Yes |
| 18 | Altova DiffDog | 5.7 | No | — | No | — | Yes | Yes |
| 19 | Kaleidoscope | 5.7 | No | $0.67/mo | No | 8 /user/mo | Yes | Yes |
| 20 | Compare It! | 5.6 | No | — | No | — | No | Yes |
| 21 | Guiffy | 5.5 | No | — | No | — | Yes | Yes |
| 22 | Avidemux | 5.5 | Free plan | Free | Yes | — | — | — |
| 23 | Diffinity | 5.4 | No | — | Yes | — | No | Yes |
| 24 | DirEqual | 5.3 | No | — | No | — | — | Yes |
| 25 | AmSo Compare | 5.2 | No | — | No | — | Yes | Yes |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which file comparison software is ranked first on Samsung Mobile US Press?
Diffract is ranked #1 of 30 with a score of 8.0. Meld is second and WinMerge third.
How many of these have a free plan?
7 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Kaleidoscope has the lowest first paid tier we found: $0.67/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.