OnSefy
Stop fake signups with AI fraud detection
AI app categories
Developer Tools
Ship 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.
Developer Tools apps
4,351 reviewed tools
Morse Command
Learn Morse Code in a gamified way using the Koch method
VisualSentinel
Catch website failures uptime monitors miss
15 Minute Mail
Free disposable email with a 15 minute timer. No signup need
Danube
The App Store for Agent Tools
Bizzly
AI websites, billing, and booking for service businesses
Milq AI
Lovable for iOS Apps in Swift
Heym
Build AI workflow automations with a visual canvas
Kopra
You build the product. Your customers build the fields.
FlowTab
NewTab, Search & Focus.
DevLens
Transform repos into interactive dependency graphs
CPZAI
The AI-native systematic trading operating system
LightKeeper
See how fast your site loads for customers in 65+ regions
UNPWNED
Scan your site for vulnerabilities. Fix them with AI
Claw.Mobile
Free guide to running your own AI agent
AgentProof
Score email bot probability in real time
AI Admissibility
External admission boundary for AI execution
Royal Plugins
Premium WordPress plugins for security, speed and backups
DashClaw
Open-source governance for AI agent fleets
ToolsFree.ai
Access free online calculators, converters, and web tools