kitio.aiDiffbot vs PDFParser
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. PDFParser has the lower starting price: about $9 a month, against $299 for Diffbot.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Automatic extraction APIs
- Knowledge Graph
- Web crawler
- Natural language API
- Grounded LLM
- Custom field definitions
- JSON and CSV export
- Batch uploads
- Template-free extraction
- API access on all plans
- Webhook notifications
| Feature | Diffbot | PDFParser |
|---|---|---|
| Best for | Web extraction APIs and a knowledge graph of the web | Extracts the fields you define from PDFs into JSON or CSV |
| Category | Data & analytics | Data & analytics |
| Pricing model | Freemium | Freemium |
| Starting price | $299/mo | $9/mo |
| Free plan | Yes | Yes |
| Made by | Diffbot | PDFParser |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
PDFParser has the lower starting price: about $9 a month, against $299 for Diffbot.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 9,500 credits per month
- All four APIs included
- 5 requests per minute
Startup
$299/mo
- 250,000 credits per month
- Overage at $0.001 per credit
- 5 requests per second
Plus
$899/mo
- 1,000,000 credits per month
- Crawl access (25 active)
- 3 user seats
- 25 requests per second
Enterprise
Custom
- Custom credit allotment
- 100+ active crawls
- Custom rate limits and support
4 plans
Free
Free
- Free tier, no card required
Starter
$9/mo
- 100 pages per month
- $0.09 per page
- Full API access
Pro
$29/mo
- 500 pages per month
- JSON Schema validation
- Webhook notifications
Business
$99/mo
- 2,500 pages per month
- $0.04 per page
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Diffbot
- No per-site rules needed
- Very large knowledge graph
- Long track record
- Paid plans are expensive
- Less control over custom fields
PDFParser
- No templates or rules to set up
- API included on every plan
- Works on images as well as PDFs
- Unused pages expire each month
- Files capped at 20 MB
- Starter plan covers only 100 pages
Which one should you choose?
Choose Diffbot if you want:
- No per-site rules needed
- Very large knowledge graph
- Long track record
Watch out: paid plans are expensive.
Choose PDFParser if you want:
- No templates or rules to set up
- API included on every plan
- Works on images as well as PDFs
Watch out: unused pages expire each month.
Diffbot vs PDFParser FAQ
What is the difference between Diffbot and PDFParser?
Diffbot: Web extraction APIs and a knowledge graph of the web. PDFParser: Extracts the fields you define from PDFs into JSON or CSV. Both are data & analytics tools.
Is Diffbot or PDFParser cheaper?
PDFParser has the lower starting price: about $9 a month, against $299 for Diffbot.
Do Diffbot and PDFParser have free plans?
Diffbot: Yes. PDFParser: Yes.
Who makes Diffbot?
Diffbot is made by Diffbot, based in United States.
Who makes PDFParser?
PDFParser is made by PDFParser.
Which should I choose, Diffbot or PDFParser?
Choose Diffbot if you value no per-site rules needed and very large knowledge graph. Choose PDFParser if you value no templates or rules to set up and api included on every plan.