Diffchecker review
A broad comparison suite with desktop coverage, API access, and two-way merge workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Diffchecker is a web and desktop comparison tool for developers, legal teams, writers, editors, and operations users. It compares text, source code, PDF, Word, and PowerPoint files, images, spreadsheets, and folders. Side-by-side and unified views, word- and character-level highlighting, syntax highlighting, formula-change detection, and merge workflows cover both everyday document review and technical comparison. The web app supports sharing and comments, while desktop apps run on Windows, macOS, and Linux. An API adds programmatic comparison for text, documents, images, and spreadsheets.
The published plans show a freemium structure. Basic is free and includes online comparison tools with limited access to Pro features. Pro + Desktop costs $15 per user per month and adds web access, the desktop app, folder and batch comparison, offline comparisons, and AI difference summaries. Enterprise costs $40 per user per month with annual billing and adds SAML SSO, iManage integration, SCIM provisioning, and dedicated support. Diffchecker Legal costs $20 per user per month and includes Pro + Desktop features, iManage integration, and comparison profiles. A 14-day free trial is also available.
Diffchecker’s main strength is breadth: one product spans code, office documents, images, spreadsheets, folders, desktop workflows, and API automation. Git support and syntax highlighting suit software work, while iManage, the Word add-in, comparison profiles, and document-focused features support legal and editorial use. API Basic is free with 50 requests per month and a 5 MB maximum request size; API Standard costs $99 per month for 10,000 credits and a 100 MB limit, while API Business costs $299 per month for 100,000 credits and the same limit. Choose Diffchecker if varied file types and platform coverage matter. Consider another option if you require documented three-way merging or a lower-cost paid tier.
Diffchecker pros and cons
- Where it wins
- Compares text, documents, images, spreadsheets, and folders
- Runs offline on Windows, macOS, and Linux
- Includes Git, iManage, Microsoft Word, and API support
- Where it doesn't
- Verified merge scope is two-way
- Paid plans start at $15 per user per month
- Advanced API usage requires a separate paid plan
Diffchecker fact sheet, pricing and score →
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