Matrix & correlation heat maps
Render correlation matrices as dense, cell-based grids. Cluster rows by similarity, sort by intensity, annotate outliers, and hover any cell for exact values — no more squinting at spreadsheet conditional formatting.
See your data glow.
HeatLens turns raw warehouse tables, spreadsheets and API streams into heat maps your whole team reads at a glance — exact values on hover, colorblind-safe by default.
Weekly activity · sessions vs baseline
−100% · Below baseline0 · Baseline+100% · Above baseline
Trusted by data teams atNordvaultFjordataPaneliqBrickfield
Built for dense, decision-ready grids
Three ways HeatLens turns numbers into patterns — without a single unreadable rainbow table.
Geographic heat maps
Plot unsigned magnitude by region on a sequential thermal scale — sign-ups by country, latency by edge node, revenue by territory. Intensity reads instantly.
Live: EU +64% · NA +48% · APAC +31%
Accessible divergent scales
Divergent, sequential and monochromatic palettes with WCAG-conscious defaults, value labels and a one-click colorblind-safe mode — so no insight ever hides behind a hue.
From warehouse to insight in three steps
No BI team required — connect, pick a scale, and read.
- 1
Connect your data
Point HeatLens at Snowflake, BigQuery, Postgres, plain spreadsheets or streaming APIs. Schemas map in minutes.
- 2
Choose your scale
Divergent for deltas against baseline, sequential for magnitude, monochromatic for density. Baselines are computed for you.
- 3
Watch patterns emerge
Tooltips with exact values, annotations for the story, and one-click PNG, SVG or CSV exports your whole team can share.
Pricing that scales with your grids
Explorer
$0 forever
- 1 dashboard
- 10K cells per map
- Community support
Most popular
Analyst
$29$23 /user/mo
- Unlimited dashboards
- 5M cells per map
- Geographic maps
- PNG / SVG / CSV exports
- Priority support
Scale
Custom
- SSO / SAML
- On-prem option
- 99.9% SLA
- Audit logs
Data teams read the room faster
From funnel debugging to incident triage, heat is the fastest signal.
“We replaced three dashboards with one correlation matrix. Funnel anomalies used to take an afternoon to find — now the hot cells practically shout at you.”
“The colorblind-safe mode sold it to our whole eng org. Everyone reads the same map, the same values — so meetings start at the decision, not the legend.”
Frequently asked questions
Which data sources can I connect?
HeatLens connects to major warehouses (Snowflake, BigQuery, Redshift, Postgres), CSV and Excel uploads, and REST or streaming APIs. Dashboards can mix sources, and paid plans sync as often as every 60 seconds.
Is it usable for colorblind teammates?
Yes. Every value is available as text via tooltips and labels, and the colorblind-friendly mode replaces hue with signed numbers on each cell. Palettes are tested against deuteranopia and protanopia by default.
What are the cell, export and security limits?
Explorer maps hold 10K cells; Analyst scales to 5M with client-side rendering. Paid plans export PNG, SVG and CSV. Data is encrypted in transit and at rest, with on-prem deployment and audit logs available on Scale.
Make your next pattern impossible to miss.
Spin up a workspace, connect a sample source, and ship your first heat map today. Free 14-day Analyst trial — no credit card required.