Stars
Firefox Profiler — Web app for Firefox performance analysis
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many mo…
ClickHouse® is a real-time analytics database management system
Modern observability platform: 10x easier, 140x lower storage cost, petabyte scale. Open-source alternative to Elasticsearch/Splunk/Datadog for logs, metrics, traces, RUM, and more.
Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
Time Series data structure for Redis
Json Schema Type Builder with Static Type Resolution for TypeScript
The headless rich text editor framework for web artisans.
The lightweight, user-friendly, fault-tolerant database built on SQLite.
An open-source JavaScript library for world-class 3D globes and maps 🌎
very good whiteboard SDK / infinite canvas SDK
A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
Eclipse Theia is a cloud & desktop IDE framework implemented in TypeScript.
Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.
#1 Locally hosted web application that allows you to perform various operations on PDF files
SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open sour…
📊 Cube Core is open-source semantic layer and LookML alternative for AI, BI and embedded analytics
JavaScript Data Grid / Data Table with a Spreadsheet Look & Feel. Works with React, Angular, and Vue. Supported by the Handsontable team ⚡
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
Customizable JSON Schema-based forms with React, Angular and Vue support out of the box.
Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks
🌐 Front End interview preparation materials for busy engineers (updated for 2025)