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Prolific
✓ verifiedPaid
Research participant marketplace that gives AI teams and academics fast access to verified, screened human data and feedback.
21M visits/mo
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JPG to Text
✓ verifiedFreemium
Online OCR converter that extracts editable text from JPG, PNG and similar images, with free use plus credit-based paid tiers.
496K visits/mo
Pricing
No public pricing
No public pricing
Lite: $4.5/mo (10,000 credits)
Standard: $6.9/mo (18,000 credits)
Pro: $9/mo (25,000 credits)
Core features
- ✦CSV to API conversion
- ✦Data parsing (CSV to JSON)
- ✦Filtering capabilities
- ✦300,000+ verified, screened participants
- ✦300+ audience targeting filters
- ✦Representative and quota-based sampling
- ✦API and no-code survey tool integrations
- ✦AI-powered participant quality monitoring (Protocol)
- ✦Managed services with dedicated project teams
- ✦Access to vetted domain experts
- ✦OCR text extraction from images
- ✦Simple and formatted OCR modes
- ✦Text, HTML and Markdown output
- ✦Batch upload (up to 50 images)
- ✦Ad- and captcha-free paid tiers
- ✦Related JPG/PDF/Word/Excel converters
Use cases
- →Sharing CSV data with a team via an API
- →Creating a public API from CSV data
- →Filtering and accessing specific data within a CSV file programmatically
- →Collecting human preference data for RLHF or model evaluation
- →Running academic behavioral or market research studies
- →Sourcing domain-expert data for specialized AI benchmarks
- →Digitizing scanned documents
- →Converting printed articles to text
- →Extracting data from invoices and forms
- →Making image text searchable and editable
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