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KanuniLabs vs Seedfast

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

KanuniLabs compared with Seedfast
DetailKanuniLabs logo KanuniLabs Seedfast
What it doesFast data grid and pivot table for React and JavaScript with virtual scrolling and Web Worker support Synthetic test data generator for PostgreSQL that reads your live schema and generates realistic data without production data
StageStartup Startup
Founded2026 2025
Based inNot given SK
Pricing modelFreemium Freemium
PricingNot given Free plan: $5 of monthly credits ($10 with work email), around 8 seeding runs per month on a 30-table schema. Basic plan: $16/month with $32 of monthly credits (2x payment), around 50 runs per month. Premium plan: $69/month with $180 of monthly credits (2.6x payment), around 300 runs per month, prio
Key features
  • Virtual scrolling: handles millions of rows with only visible rows in the DOM
  • Web Worker offload for filtering and sorting above ~20,000 rows
  • Columnar encoding with typed arrays for fast sorting and filtering
  • Server-side data loading and filtering
  • Sorting and filtering with custom comparators
  • Inline editing with validation and lookups
  • Multi-level grouping and master-detail views
  • Excel and PDF export with styling
  • Calculated columns with spreadsheet formulas
  • Interactive charts and drill-down
  • Reads live database schema to generate coherent test data automatically
  • Generates realistic data at scale from hundreds to tens of millions of rows
  • Maintains foreign key integrity and constraint satisfaction
  • Generates localized data with culturally appropriate names and formats
  • Works as CLI, MCP server for AI editors, and CI/CD pipeline step
  • Handles complex schemas with composite keys and multi-level dependencies
  • Plan preview shows exactly what will be seeded before writing any rows
  • Never requires access to production databases
  • Generates data with realistic distributions across columns and tables
  • Most runs complete in under three minutes
What makes it different
  • Free Community edition with no expiry, watermark or license key for commercial use
  • Paid versions never expire or lock users out; shipped applications keep running without watermarks
  • No license server; keys checked locally via public key compiled into the package
  • Handles millions of rows efficiently with only the visible window rendered
  • No production data exposure: generates all test data from schema alone, eliminating privacy and compliance risks
  • Schema-aware generation creates coherent, relational data without manual seed scripts
  • Integrated with AI editors through MCP server for seamless developer workflow
  • Realistic data that surfaces real bugs, not random placeholder values
  • Works at any scale with consistent data integrity from dozens to tens of millions of rows
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)37 no change since last check8 −19 (down) since last check
Trust Flow (Majestic)627
Citation Flow (Majestic)2832
Referring domains (Majestic)2662

6 details filled in for both companies.

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