Playground
The full IDE on a sample BigQuery project, with no Google account and nothing to connect. Use it to try completions, diagnostics, and Prism AI before you decide to sign in.
SELECT country, COUNT(*) AS users FROM `ace-analytics.warehouse.users` GROUP BY country ORDER BY users DESC LIMIT 10
Starting it
Open app.querylab.io, tick the Terms of Service checkbox, and click Start Exploring on the Playground card. If you already signed in and reached the Connect to BigQuery step, Try Playground does the same thing.
You land in the editor with the sample project loaded in the schema tree. Everything you type runs against real BigQuery — the data is sample data, the engine is not.
What works and what doesn’t
| Playground | Signed in | |
|---|---|---|
| Per-query limit | 1 GB | Your own limit, default 100 GB |
| Daily budget | 50 GB, 200 queries | Your own budgets |
| Prism AI | 10 requests per day | Plan quota |
| Query history | Sample history plus what you ran in this browser | Your BigQuery job history |
| Save queries, share links, import data, schedule queries | Not available | Available |
The per-query limit is fixed: every tab is created with 1 GB and the status-bar popover says Limited to 1 GB in Playground.
A budget panel in the sidebar shows what’s left for today:
Limits: 1 GB/query, 50 GB/day
You’re using a playground project with sample data. Log in with Google to work with your own BigQuery projects and data.
Continue with Google — Sign in to connect your data
When the daily allowance is gone, queries stop and a Playground Limit Reached dialog offers Sign Up Free or Maybe Later. The counter resets at midnight UTC.
Signing in from Playground
Click Continue with Google in the budget panel or the playground footer, or Log in with Google in the status-bar limit popover. You go straight to Google sign-in and then to the Connect to BigQuery steps.