Self-hosted analytics, time-series databases, dashboards, and tracing.
The open source all-in-one product analytics suite for engineers
“We got tired of sending our customer data to 10 different closed-source analytics vendors, so we built PostHog.”
A library for visualization and creative coding
Open source music theory explorer for guitarists
GitHub inspired JavaScript charting with zero dependencies
Open startups with their revenue, metrics, and stories
Free Admin for Bootstrap 4, React, Angular, Vue.js
Xkcd-styled chart library
SVG Patterns for Data Visualization
open-source real-time server with pub/sub and data sync
A new sampling profiler for Python programs
A Python stream processing engine modeled after Yahoo! Pipes
An exceptionally fast, tiny time series chart
Host your status page on GitHub
Create Chart Images from a URL
Distributed, scalable, persistent time-sorted message queue
Linux server monitoring web dashboard
Light Bootstrap Dashboard
low poly style background generator with D3.js
Word Tree in D3.js
My shell script for HTTP/HTTPS troubleshooting and profiling
GPG on macOS and YubiKey
Live visualization of Kafka streams
Turn your GitHub Gist into a live dashboard
Python Production Profiler: CPU, Memory, Exceptions
top-like metrics for Nginx
JavaScript trigonometry visualization
Get Rails performance metrics into Chrome Dev Tools
live dashboard for your projects
Intro to Machine Learning in Interactive D3.js Visualizations
Low cost CO₂ monitoring (your office) with Prometheus and Go