ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Open-source database diagram editor with AI-generated ER diagrams
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chartdb.io | prolific.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 49.52K (49,523) | 18.7M (18,697,671) |
| MoM Traffic Delta | -24.87K (-33.4%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (12.1%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 19.95K | 12.98M |
| User Rating | 4.6 | 4.6 |
| Supported Platforms | Website | Website |
Open-source database diagram editor with AI-generated ER diagrams
Paste a single read-only query result and ChartDB renders the whole schema as an ER diagram, with no direct database access or local agent required.
Describe a database idea in plain language and get a fully editable, optimized ER diagram that you can refine and export straight to SQL.
Export clean DDL scripts in your preferred SQL dialect or download diagrams as images and embeddable previews for documentation.
On Cloud plans, diagrams stay in sync with the live database automatically, with change logs and version history to track every schema drift.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
SpecialistAI diagrams and technical design docs built from your code and systems
SpecialistAI diagrams and technical design docs built from your code and systems
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistAI-powered visual collaboration for diagrams, mind maps, and charts
SpecialistAI-powered visual collaboration for diagrams, mind maps, and charts
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema
SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema
SpecialistAI-led customer interviews and research insights at scale
SpecialistAI-led customer interviews and research insights at scale
Free / Open-sourceAI text-to-SQL client for database management and analysis
Free / Open-sourceAI text-to-SQL client for database management and analysis
