Overview

Diffchecker compares text, code, data, and other file types in a browser or with a desktop app. It is best suited to developers, editors, and operations teams that need to inspect or merge changes across varied content. Its breadth is useful, but the free plan’s monthly try limits make it a poor fit for frequent work.

Key features

Text and code comparisons

Side-by-side and unified views, adjustable diff precision, custom ignore rules, and syntax highlighting let users tailor how differences appear. Real-time editing and merging make it useful for reconciling changes, not just viewing them. Basic restricts unified view and real-time editing to five tries per month, and character-level differences and merging to ten tries per month; those caps will quickly constrain regular use.

Documents, images, spreadsheets, and folders

Diffchecker extends comparison beyond text with features including OCR, redlines, formula detection, and batch comparison. That range can consolidate different review tasks, particularly for teams working with mixed file types. The site states there is no file-size limit, but very large files take longer to render in a browser; Desktop runs locally and is faster for those comparisons.

Integrations and privacy

Git and a Microsoft Word add-in are available for Desktop, while iManage integration is offered with Legal and Enterprise. Desktop connects to iManage Cloud through Preferences under Integrations. Browser comparisons run in the browser and are not published or shared unless users save and share them; Desktop comparisons run offline on the computer without interacting with Diffchecker web servers. Browser traffic is encrypted with TLS, and the company says its information security program is certified to ISO/IEC 27001.

Pricing

Basic costs 0.00 USD per free and offers limited access to Pro features, with some functions capped by monthly tries. It suits occasional comparisons, but the quotas make it a weak choice for recurring workflows.

Pro + Desktop costs 15.00 USD per month, billed per user/month. It includes full access to Pro features, Windows, Mac, and Linux desktop apps, and offline comparisons. This is the most direct upgrade for individuals or teams that need regular use or local processing. Desktop advertises a 14-day trial with no credit card required.

Diffchecker Legal costs 20.00 USD per month, billed per user/month. It adds iManage integration and profiles for managing comparison settings to Pro + Desktop, making it the relevant tier for legal teams using iManage. Enterprise costs 40.00 USD per month per user, with annual billing only. It includes Pro + Desktop, SAML SSO, iManage integration, SCIM provisioning, and dedicated support; the annual-only term and per-user cost make it a better fit for organizations that need those administration and support provisions. Enterprise also includes a service-level agreement. Priority support is available for Pro, Desktop, and Legal.

Platforms

Diffchecker is available on the web and as a desktop app for Windows, macOS, and Linux. Browser use offers an online workflow; Desktop supports offline comparisons and handles very large files faster by processing them locally.

Who it's for

Developers and engineers can use Diffchecker for code and Git-related comparison; writers and editors can review text and documents; data and operations teams can compare spreadsheets and folders. It is less compelling for light users who can stay within Basic’s quotas, or for buyers who need a free tool without recurring usage caps.

Pros and cons

Pros: Multiple text views, adjustable precision, ignore rules, editing, and merging support detailed review and reconciliation.
Pros: Document, image, spreadsheet, and folder comparisons broaden its use beyond text and code.
Pros: Offline Desktop comparisons and local processing suit sensitive work and very large files.
Cons: Basic limits several useful operations to five or ten tries per month, so it is not a dependable free tier for sustained work.
Cons: Enterprise requires annual billing, and paid plans are priced per user/month, which teams should account for when choosing a tier.

Alternatives

For a free option with a broad set of desktop platforms, Meld runs on Linux and Windows under GPLv2 or later. WinMerge is a free, open-source Windows option, while P4Merge is free and supports Linux, macOS, and Windows. SourceGear DiffMerge is another free choice across those three desktop platforms.

Beyond Compare may suit buyers who prefer a one-time purchase: its Standard Edition is 35.00 USD per once, per user, with no annual renewal fees, and it supports Linux, macOS, and Windows. Code Compare is worth considering for a Windows or extension-based option with a free version and a paid Pro tier. Diffract is a freemium alternative with Linux, macOS, and Windows support. mergers is a free option for Linux, macOS, and Windows.

For category browsing, see Diff and Merge Tools, Document Comparison Software, and File Comparison Software.

Verdict

Diffchecker is a strong fit for people who need one tool for text, code, and multiple file types, especially when offline desktop work or document-oriented integrations matter. The main reason to choose it is the breadth of comparison workflows in one product; the main reason to look elsewhere is Basic’s tight quotas or a preference for a free or one-time-purchase tool.

	Diffchecker	Mergely
Free plan	Yes	No
Free trial	Yes	No
Paid from	$15/mo	—
Open source	No	No
Platforms	Linux, macOS, Web, Windows	Web
Free plan	Yes	Yes
Paid from	15 /user/mo	—
Folder comparison	Yes	—
Three-way merge	—	No

Diffchecker vs Mergely

Diffchecker

Mergely