No. 5 of 32 ·Data Enrichment Software

Diffbot

Web · Self-hosted · API · paid plans from $299/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Diffbot is ranked #5 of 32 in data enrichment software on Freedom251. It runs on API, Self-hosted, Web. There is a free plan. Paid plans start at $299/mo.

Diffbot plans and pricing

All plans

Free Free 10,000 credits / month All four APIs included · 5 requests / min · No credit card required diffbot.com · 7 Oct 2026

Startup $299/mo $299 / mo 250,000 credits / month · Overage at $0.001 / credit · All four APIs included · 5 requests / sec diffbot.com · 7 Oct 2026

Plus $899/mo $899 / mo 1,000,000 credits / month · Overage at $0.0009 / credit · Access to Crawl (25 active) · 3 user seats · 25 requests / sec diffbot.com · 7 Oct 2026

Enterprise Not published Custom Custom credit allotment · 100+ active crawls · Custom user seats · Dedicated support · 25+ requests / sec diffbot.com · 7 Oct 2026

Compared on data enrichment software

Free plan: Yes
Paid from: $299/mo
Enrichment types: person and organization profiles; firmographic data; employment and location attributes
Monthly credits: 250,000 credits/mo
API access: Yes
CRM sync: No
Waterfall enrichment: No
Data freshness: unspecified

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The record

What it does: Diffbot builds AI models that read and transform the unstructured web into linked knowledge.
Extract: Extract classifies a page and returns structured JSON based on a standard page type and ontology.
Crawl: Crawl spiders sites from seed URLs and extracts pages into structured datasets.
Natural Language: The Natural Language service resolves entities, relationships, coreferences, salience, and sentiment in plain text.
Knowledge Graph: The Knowledge Graph supports structured queries about companies, people, news, and other public web entities.
Web Search: Diffbot Web Search offers an API and self-hostable search index designed to run on a machine or cloud, including offline use.
Web Search limit: The Web Search page says closed media sites such as Facebook, Reddit, LinkedIn, and Instagram are generally off limits.
Integrations: The documentation lists Python and TypeScript libraries and agent skills as interfaces.
Security and privacy: Diffbot’s privacy policy says it issues subscribers a unique API key and collects login, query history, and API call data to provide the services.
Support: Technical and implementation help is available at [email protected], while account, billing, and sales inquiries go to [email protected] or the listed phone number.
Plan limits: The Free plan returns a 429 Quota Exceeded response after 10,000 credits or its rate limit, and quotas reset at the start of each billing period.
Target users: Diffbot says its services are used by companies worldwide to access unstructured public web data at scale.
Headquarters: Menlo Park, California, United States
Price from: $299/mo

Where it ranks on Freedom251

Best Data Enrichment Software in 2026#5 of 32

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Sources

diffbot.com/docs/· checked 7 Oct 2026
diffbot.com/technology· checked 7 Oct 2026
diffbot.com· checked 7 Oct 2026
diffbot.com/products/web-search· checked 7 Oct 2026
diffbot.com/company/privacy· checked 7 Oct 2026
diffbot.com/resources/support· checked 7 Oct 2026
diffbot.com/pricing· checked 7 Oct 2026