Palette

Web Performance.
Down to the line of code.

Palette collects end user interaction latency, page loads, and JavaScript code profiles, tying slow user experiences and regressions to lines of code. Monitor and fix performance issues in minutes, not months.

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Profile end user sessions. Imagine the Chrome DevTools profiler, powered by end user sessions.

Mock of an end user profile

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“Most recently, we used Palette to identify the cause of a 10% latency increase for initial page render.“

Carlo Francisco
Carlo FranciscoEngineering at Notion

“Most recently, we used Palette to identify the cause of a 10% latency increase for initial page render.“

Carlo Francisco
Carlo FranciscoEngineering at Notion

“Palette delivers a lot of value. What Palette is really enabling here is to go much quicker from what happened to who done it.“

Felix Rieseberg
Felix RiesebergEngineering Manager at Notion

“Palette delivers a lot of value. What Palette is really enabling here is to go much quicker from what happened to who done it.“

Felix Rieseberg
Felix RiesebergEngineering Manager at Notion

“Palette is the most helpful tool we have for identifying the root cause of performance issues.“

John Ryan
John RyanEngineering at Notion

“Palette is the most helpful tool we have for identifying the root cause of performance issues.“

John Ryan
John RyanEngineering at Notion

Light as a feather

Network payloads are compressed asynchronously off the main thread and are only sent during idle periods.

Palette's overhead across all end user sessions is equal to the profiler overhead (10%) multiplied by the percentage of users profiled.

As an example, your p95 typing latency might be 100ms. When enabling profiling on 3% of sessions, the latency will increase by 10% for 3% of users, resulting in a p95 of 100.3ms.

Base Latency

100ms

Sessions

3%

Latency with Profiling

100.3ms

Ahead of the curve

Network payloads are compressed asynchronously off the main thread and are only sent during idle periods.

Build fast Web Apps today

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1import { init, profiler, paint } from "@palette.dev/browser";
2

3init({ key: "YOUR_CLIENT_KEY", plugins: [profiler(), paint()] });
4

5profiler.on(
6  ["paint.click", "paint.keydown", "paint.scroll", "paint.mousemove"],
7  { sampleInterval: 1, maxBufferSize: 100_000 }
8);