Subterranean
AI technical cofounder to build your app
See websiteShip code faster and find the bug.
4,355 tools · updated Oct 1, 2026This is the deepest category on Appz, and the fastest-moving. It covers autocomplete and agentic coding assistants, code review and static analysis, test generation, observability and deployment tooling. Judge these tools on the boring parts — how they handle a large existing repo, and how much of their output you end up rewriting.
4,351 reviewed tools
AI technical cofounder to build your app
See websiteThe context hub for your agents
See websiteLocal tool-calling AI agents with SLMs
See websiteSource-backed technographics with an API and MCP server.
See websiteSecurity scanner for OpenClaw AI agent skills
See websiteGive AI agents identity, secrets vault & analytics
See websiteRun Claude, Codex & Copilot directly in GitHub & VS Code
See websiteAI-powered Q&A for GitHub repositories.
See websiteA no-code platform that empowers users to create and deploy AI-powered apps and chatbots
See websiteAn AI tool designed to simplify the coding process for students and professionals
See websiteUsing natural-language prompts to generate Pulumi infrastructure-as-code programs in any language
See websiteDubbed "Grammarly for programmers," it auto-corrects programmers as they code
See websiteChoose the UI library, automatically create pages, and fill them with GPT-4 generated content
See websiteConnect AI models to build AI apps in minutes, with no-code
See websiteAn AI-powered web builder that helps entrepreneurs quickly launch, validate and grow their startup ideas
See websiteAI website builder that creates websites in minutes, complete with text, design & images
See websiteAI code generation tool with support for multiple programming languages
See websiteA GPT4-powered "text-to-app" platform that allows anyone to build web apps by describing them
See websiteSee what your Claude Code sessions actually cost
See websiteSelf updating wiki for coding agents
See website