
The AI coding agent for building ambitious software
Postgres Sandbox records 445 monthly visits with -17.3% month-over-month growth and Free pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.

Real PostgreSQL in your browser, with AI to help write the SQL
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | postgres.new | prolific.com |
| Pricing Model | Free | Paid |
| Monthly Visits | 445 (445) | 18.7M (18,697,671) |
| MoM Traffic Delta |
| -93 (-17.3%) |
| -352.04K (-1.8%) |
| Primary Market & Share | 🇦🇷 Argentina (100%) | 🇺🇸 United States (48.8%) |
|---|
| Direct Visits / mo | 183 | 12.98M |
|---|
| User Rating | 4.5 | 4.6 |
|---|
| Supported Platforms | Website | Website |
|---|

Real PostgreSQL in your browser, with AI to help write the SQL
A new PostgreSQL database is created automatically in your browser via PGlite — no server, no installation, no configuration.
An AI assistant helps generate and reason about SQL from natural-language prompts, lowering the barrier for schema and query work.
Load CSV data and start querying it directly, which makes the sandbox handy for quick analysis and data exploration.
Turn query results into charts and draw ER diagrams to visualise table relationships within the same workspace.
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.

The AI coding agent for building ambitious software

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
#3
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.

Free / Open-sourceReactive TypeScript backend with database, functions and AI gateway

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.


SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.


Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.

Managed ClickHouse® and tooling to ship real-time analytics features

AI SQL assistant that writes, fixes and runs queries on your real schema

SpecialistAI-led customer interviews and research insights at scale
The AI coding agent for building ambitious software
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
Free / Open-sourceReactive TypeScript backend with database, functions and AI gateway
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.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Managed ClickHouse® and tooling to ship real-time analytics features
AI SQL assistant that writes, fixes and runs queries on your real schema
SpecialistAI-led customer interviews and research insights at scale