VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View Diffchecker View Open Payments (CMS)Back to Home

Head-to-head

Diffchecker vs Open Payments (CMS) comparison

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

Quick takeaways

Diffchecker adds Diff View coverage that Open Payments (CMS) skips.

Open Payments (CMS) includes Data APIs, Data Visualizations, and Regulatory Filings Monitoring categories that Diffchecker omits.

Diffchecker 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., and Real-time text diffing, diff merging, dark mode, and export to PDF..

Open Payments (CMS) is known for: Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests., Web search/explorer with filtering and charts; program year downloads available from the portal., and Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style)..

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

Web

Desktop

API

Pricing

Free

Subscription

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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Open Payments (CMS)

openpaymentsdata.cms.gov

U.S. federal open‑data program (Affordable Care Act ‘Sunshine Act’) that publishes financial relationships between drug/device manufacturers (and GPOs) and healthcare providers (physicians, NPPs since PY2021, and teaching hospitals). CMS publishes the prior program year’s full datasets on or before June 30 each year and issues a January refresh. Data are accessible via the web search tool, bulk downloads, and a REST Open Data API (filter, query, aggregate).

Platforms

Web

API

Pricing

Free

Quick highlights

Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests.
Web search/explorer with filtering and charts; program year downloads available from the portal.
Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style).
Publication cadence: initial annual publication on/around June 30 for the prior year, plus a January data refresh.
Pre‑publication workflow: 45‑day recipient review & dispute (Apr 1–May 15) + 15‑day correction window (May 16–May 30).

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Overlap

Shared focus areas

1 overlap

Both tools cover this research theme.

APIs & SDKs

Where they differ

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.

Open Payments (CMS)

Distinct strengths include:

Data APIs

Data Visualizations

Regulatory Filings Monitoring

Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests.
Web search/explorer with filtering and charts; program year downloads available from the portal.
Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style).
Publication cadence: initial annual publication on/around June 30 for the prior year, plus a January data refresh.

Feature-by-feature breakdown

Attribute	Diffchecker	Open Payments (CMS)
Categories Which research workflows each platform targets	Shared: APIs & SDKs Unique: Diff View	Shared: APIs & SDKs Unique: Data APIs, Data Visualizations, Regulatory Filings Monitoring
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, Desktop, API	Web, API
Pricing High-level pricing models	Free, Subscription	Free
Key features Core capabilities called out by each vendor	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.	Unique Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests. Web search/explorer with filtering and charts; program year downloads available from the portal. Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style). Publication cadence: initial annual publication on/around June 30 for the prior year, plus a January data refresh. Pre‑publication workflow: 45‑day recipient review & dispute (Apr 1–May 15) + 15‑day correction window (May 16–May 30). Supplemental/lookup tables (e.g., Covered Recipient Profile Supplement; distinct physician profile) to aid joins.
Tested Verified by hands-on testing inside Find My Moat	Not yet	Not yet
Editor pick Featured inside curated shortlists	Standard listing	Standard listing

Frequently Asked Questions

Which workflows do Diffchecker and Open Payments (CMS) 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 Diffchecker and Open Payments (CMS) require subscriptions?

Both Diffchecker and Open Payments (CMS) keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Diffchecker and Open Payments (CMS)?

Both Diffchecker and Open Payments (CMS) 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?

Diffchecker differentiates itself with 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., whereas Open Payments (CMS) stands out for Three core datasets each year: General Payments, Research Payments, and Ownership/Investment Interests., Web search/explorer with filtering and charts; program year downloads available from the portal., and Open Data API (ODA) for programmatic access with filtering, querying, and aggregation (SoQL‑style)..

Keep exploring

Stay on top of related tools

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