Diffchecker vs WinMerge
Diffchecker
diffchecker.com
WinMerge
winmerge.ioSide by side
| Figure | Diffchecker | WinMerge |
|---|---|---|
| Price from | $15/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| API | Yes | — |
| Plans published | 8 | 1 |
| Spec score · File Comparison Software | 9.2 (#1) | 7.0 (#28) |
| Integrations | Published integrations include Git, Microsoft Word and iManage Work; Enterprise also supports SAML identity providers and SCIM provisioning. | WinMerge offers 64-bit Windows Explorer shell integration, 7-Zip archive browsing, plugins, and use as an external diff tool alongside version control tools. |
| Intended users | The site describes use cases for developers and engineers, writers and editors, and data and operations teams. | The site describes workflows for developers comparing branches, administrators syncing configuration folders, and power users comparing files, tables, and images. |
| Support | The pricing page lists priority support for Pro, Desktop, Legal, and Enterprise, with dedicated support channels and a service-level agreement for Enterprise. | The site provides FAQ, step-by-step guides, and antivirus troubleshooting guidance. |
Plans
Diffchecker
- API BasicFree
- BasicFree
- Pro + Desktop$15 a month
- Diffchecker Legal$20 a month
- Enterprise$40 a month
- API Standard$99 a month
- API Business$299 a month
- API EnterprisePriced on request
In their own words
Diffchecker
Diffchecker compares text, code, and data in a browser or offline with its desktop app, highlighting additions, removals, and edits. Text comparisons can use side-by-side or unified views, adjustable precision, custom ignore rules, syntax highlighting, real-time editing, and change merging. Listed comparison options also include documents, images, spreadsheets, and folders, with features such as OCR, redlines, formula detection, and batch comparison. Basic is free, but some tools have monthly use limits: unified view and real-time editing each allow five tries, while character-level differences and merge changes each allow ten. Pro + Desktop costs $15 a month per user and includes offline comparisons with desktop apps for Windows, Mac, and Linux. Legal costs $20 a month per user and adds iManage integration and comparison-setting profiles. Enterprise costs $40 a month per user with annual billing, and includes SAML SSO, SCIM provisioning, and dedicated support. Browser comparisons stay in the browser unless saved and shared; Desktop comparisons run locally. The site states browser traffic is TLS-encrypted and its security program is ISO/IEC 27001 certified.
WinMerge
WinMerge is a free, open-source Windows application for visually comparing and merging files and folders. File comparison uses side-by-side panes, inline difference highlights, syntax highlighting, a difference pane, and moved-line detection. Folder comparison can be recursive or single-level, apply regular-expression filters, recognize binary files, and compare three versions. Image comparison offers block highlights and overlay mode, while CSV and TSV files appear in table form. WinMerge creates Normal, Context, and Unified patches and can resolve conflict files produced by other tools. It includes 64-bit Windows Explorer shell integration, 7-Zip archive browsing, plugins, and use as an external diff tool with version-control tools. Current 32-bit builds require Windows XP SP3 or newer; 64-bit builds require Windows 7 or newer. Official cross-platform support is not planned. GPLv2 licensing, source archives, release SHA-256 checksums, guides, and FAQ support are provided.