o11ytsdb engine
A time-series database
that runs in your browser.
Generate realistic telemetry datasets, inspect how they are stored, and run live queries against them without leaving the browser. Generate millions of data points below and query them in real time.
Load a Dataset
Choose a pre-built scenario or configure custom data. Everything runs in your browser — no server, no network, no latency.
Custom Generator
What would you like to explore?
Your dataset is loaded and ready. Choose a path — you can always switch later.
Storage Explorer
Each row is a series. Frozen compressed chunks are frozen and the active write buffer is hot. Click any chunk to inspect it.
Chunk Details
Explore Metrics
Start with a chart-per-metric overview, then drill into one metric at a time to compare its available dimensions.
1. Scan the metrics
See every metric as a chart first
Each tile shows one summary chart for one metric so you can quickly spot which signals look interesting before drilling in.
2. Explore one metric
Compare one chart per dimension
Click a metric above to render one chart per available dimension here.
Query Builder
Select a metric to build a query…
1. Select Series
Pick what to read
Choose a metric, then narrow the series set with exact-match label filters.
2. Per-Series Transform
Change each series first
Apply counter math like rate or delta before any result rollup happens.
3. Roll Up Results
Aggregate, split, and bucket
Combine series, optionally split by labels, and choose whether to bucket over time.
Query Execution