Anvil is a Python-based drag-and-drop web app builder. It provides a visual designer, Python in the browser and on the server, and one-click deployment. Apps are automatically hosted, and deployment environments map a URL or Uplink key to a version of the app with its configuration. Apps can be exported from the cloud editor and hosted on a computer using the open-source Anvil App Server.
Tech playground is a browser-based environment for teaching and learning technology without local setup. It runs user configurations on real servers, offering server playgrounds, template engine playgrounds, network tools and other tools. Documentation notes that playgrounds run in UTC and executions may be cached.
color.review is a developer resource for coding, documentation, communities, security research, or software tools.
Neon is a serverless backend platform built on Lakebase Postgres, offering Postgres databases with branching and autoscaling alongside authentication, object storage, functions and an AI gateway. Environments can be created and branched via MCP, CLI and SDK, and services are described as instant, branchable and agent-ready.
Wireflow is a free, online and open source tool for creating user flow prototypes without Photoshop skills. It offers 125 ready-made wireframe screen templates, groups and notes, and export to PNG or JPG. The project is MIT licensed and runs in the browser.
Khroma is an AI-powered color tool for designers. It uses an algorithm trained on user-selected colors to generate palettes, and draws on popular human-made palettes to produce combinations. Palettes can be searched and filtered by hue, tint, value, color, and hex or RGB values, and saved to a collection.
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Tech playground is a browser-based environment for teaching and learning technology without local setup. It runs user configurations on real servers, offering server playgrounds, template engine playgrounds, network tools and other tools. Documentation notes that playgrounds run in UTC and executions may be cached.
color.review is a developer resource for coding, documentation, communities, security research, or software tools.
Neon is a serverless backend platform built on Lakebase Postgres, offering Postgres databases with branching and autoscaling alongside authentication, object storage, functions and an AI gateway. Environments can be created and branched via MCP, CLI and SDK, and services are described as instant, branchable and agent-ready.
Wireflow is a free, online and open source tool for creating user flow prototypes without Photoshop skills. It offers 125 ready-made wireframe screen templates, groups and notes, and export to PNG or JPG. The project is MIT licensed and runs in the browser.
Khroma is an AI-powered color tool for designers. It uses an algorithm trained on user-selected colors to generate palettes, and draws on popular human-made palettes to produce combinations. Palettes can be searched and filtered by hue, tint, value, color, and hex or RGB values, and saved to a collection.
Collect metrics and query monitoring data.
