VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Tuesday, November 11, 2025

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Tool Comparison

Ahrefs vs Diffchecker comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

Ahrefs adds App & Website Traffic coverage that Diffchecker skips.

Diffchecker includes Diff View categories that Ahrefs omits.

In depth comparison

Ahrefs logo

Ahrefs

ahrefs.com

Hands-on review

A leading SEO and web-traffic intelligence suite. The free Ahrefs Webmaster Tools unlocks limited access to Site Explorer, Site Audit, and Web Analytics for verified sites, while full platform plans expand into deep backlink, keyword, and content analysis. Higher-tier subscriptions govern credits, export limits, historical data windows, and API access.

Platforms

WebAPI

Pricing

FreeSubscription

Quick highlights

  • Comprehensive toolkit: Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, and Web Analytics.
  • Ahrefs Webmaster Tools (free) provides a lighter version of Site Explorer and Site Audit, plus Web Analytics for verified sites.
  • Looker Studio connectors available for Site Explorer, Rank Tracker, and Site Audit — reserved for Advanced and above.
  • Automated email alerts for new or lost backlinks, keyword changes, and web mentions, with flexible delivery options.
  • API v3 is included with Enterprise plans (with limited test queries available to all users).

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Diffchecker logo

Diffchecker

diffchecker.com

Diffchecker is a comparison tool for text, images, PDFs, Excel files, and folders. The free Basic plan is web-only, while Pro + Desktop adds offline diffs, ad-free usage, real-time text comparison, and desktop apps. Legal and Enterprise tiers include integrations (e.g. iManage) and advanced admin features. Enterprise also offers SAML SSO, SCIM provisioning, and priority support. An API is available with free and paid plans, and a 14-day trial is offered for Pro/Desktop plans.

Platforms

WebDesktopAPI

Pricing

FreeSubscription

Quick highlights

  • Supports multi-format comparisons: text, images, PDFs, Excel files, and folders.
  • Desktop apps allow fully offline diffs, ensuring comparisons never leave the user’s computer.
  • Real-time text diffing, diff merging, dark mode, and export to PDF.
  • Syntax highlighting for 20+ programming languages with character-by-character precision.
  • Public HTTP API supports text, image, PDF, and Excel diffs with tiered monthly quotas and input size limits.

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Where they differ

Ahrefs

Distinct strengths include:

App & Website Traffic
  • Comprehensive toolkit: Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, and Web Analytics.
  • Ahrefs Webmaster Tools (free) provides a lighter version of Site Explorer and Site Audit, plus Web Analytics for verified sites.
  • Looker Studio connectors available for Site Explorer, Rank Tracker, and Site Audit — reserved for Advanced and above.
  • Automated email alerts for new or lost backlinks, keyword changes, and web mentions, with flexible delivery options.

Diffchecker

Distinct strengths include:

Diff View
  • Supports multi-format comparisons: text, images, PDFs, Excel files, and folders.
  • Desktop apps allow fully offline diffs, ensuring comparisons never leave the user’s computer.
  • Real-time text diffing, diff merging, dark mode, and export to PDF.
  • Syntax highlighting for 20+ programming languages with character-by-character precision.

Feature-by-feature breakdown

AttributeAhrefsDiffchecker
Categories

Which research workflows each platform targets

Shared: APIs & SDKs

Unique: App & Website Traffic

Shared: APIs & SDKs

Unique: Diff View

Asset types

Supported asset classes and universes

Other

Other

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web, API

Web, Desktop, API

Pricing

High-level pricing models

Free, Subscription

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Comprehensive toolkit: Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, and Web Analytics.
  • Ahrefs Webmaster Tools (free) provides a lighter version of Site Explorer and Site Audit, plus Web Analytics for verified sites.
  • Looker Studio connectors available for Site Explorer, Rank Tracker, and Site Audit — reserved for Advanced and above.
  • Automated email alerts for new or lost backlinks, keyword changes, and web mentions, with flexible delivery options.
  • API v3 is included with Enterprise plans (with limited test queries available to all users).
  • Enterprise also adds SSO, two-factor authentication, and higher data allowances.

Unique

  • Supports multi-format comparisons: text, images, PDFs, Excel files, and folders.
  • Desktop apps allow fully offline diffs, ensuring comparisons never leave the user’s computer.
  • Real-time text diffing, diff merging, dark mode, and export to PDF.
  • Syntax highlighting for 20+ programming languages with character-by-character precision.
  • Public HTTP API supports text, image, PDF, and Excel diffs with tiered monthly quotas and input size limits.
  • API authentication uses an email query for the free tier, and API keys for paid plans.
Tested

Verified by hands-on testing inside Find My Moat

Yes

Not yet

Editor pick

Featured inside curated shortlists

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Frequently Asked Questions

Which workflows do Ahrefs and Diffchecker both support?

Both platforms cover APIs & SDKs workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Ahrefs and Diffchecker require subscriptions?

Both Ahrefs and Diffchecker keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Ahrefs and Diffchecker?

Both Ahrefs and Diffchecker prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

Ahrefs differentiates itself with Comprehensive toolkit: Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, and Web Analytics., Ahrefs Webmaster Tools (free) provides a lighter version of Site Explorer and Site Audit, plus Web Analytics for verified sites., and Looker Studio connectors available for Site Explorer, Rank Tracker, and Site Audit — reserved for Advanced and above., whereas Diffchecker stands out for Supports multi-format comparisons: text, images, PDFs, Excel files, and folders., Desktop apps allow fully offline diffs, ensuring comparisons never leave the user’s computer., and Real-time text diffing, diff merging, dark mode, and export to PDF..

Keep exploring

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.