Best Developer tools for developers

Open-source product analytics, replays and flags

Google's app backend platform

Error and performance monitoring

Identity platform for applications

Issue tracking built for fast software teams

AI app builder that turns prompts into full-stack web apps

Drop-in authentication and user management

AI-first code editor with agents, now owned by SpaceX

Integration platform for developers

API platform for testing, mocking, documenting and sharing APIs

Developer security for code and dependencies

All-in-one API design, testing, mocking and docs; a Postman rival

Browser-based AI builder that writes, runs and hosts full-stack apps

Web search and content API built for AI agents and LLM apps

Cloud browsers for AI agents, powered by the open-source Moli engine

Email API for developers

Internal tools built fast

Open-source Firebase alternative on Postgres

Frontend cloud behind Next.js

173 free web, DNS, SSL, SEO & developer tools — fast, live, no sign-up

Open-source internal tool builder

Tool and auth layer that lets AI agents act in 1,500+ apps

Localization with AI and human experts

Email API and MCP server that gives AI agents inboxes of their own

Open-source platform for running durable AI agents on any model

Open-source loop that turns AI agent traces into models you own

Deploy anything from a Git repo

Unified cloud for apps and databases

OpenAPI-to-SDK, Terraform and MCP generator, now an AI control plane

Desktop Git client for Mac and Windows with undo and PR workflows

Voice AI agent platform for phone and web calls with API and webhooks

Open-source developer platform for scripts, flows and apps

Shared room that warns coding agents before they edit the same file

Mobile CI/CD, testing distribution and in-house app store

Open-source Postgres backend that coding agents build and maintain

Shared chat rooms where AI agents and people coordinate work

Open-source memory layer that carries lessons across coding agents

Open individual windows from one Mac as native windows on another

Open-source desktop Git client for GitLab and GitHub teams

Framework-agnostic TypeScript authentication

Free animation engine that coding agents use to build motion graphics

Managed agents API that runs model and tool loops for your app

CDN, DNS, WAF and edge platform

Azure FinOps tool that finds waste and applies approved fixes

One API for scraping, search, brand data and people search

Find available 4-letter .com domains before they hit the open market

Scores how well AI agents can find, read and use your website

Design canvas that runs your production codebase

Open-source browser agent that cites page quotes for every answer

Browser bug recorder that coding agents can read through MCP

Open-source feature flags and A/B tests, cloud or self-hosted

Form backend for static sites

Code hosting, CI/CD and AI coding platform owned by Microsoft

DevSecOps platform with Git hosting, CI/CD, security scans and AI

Rent a dedicated physical iPhone or Mac for your AI agent

Multi-profile browser and cloud browser for accounts and agents

Policy checks on AI coding agent tools, before the command runs

Event gateway that queues, routes and retries inbound webhooks

Deep research reports with every citation checked against source

Reference-image editing and video jobs with Agent Skill and CLI

Diffusion LLM API built for very fast, low-latency text generation

Open-source API client for REST, GraphQL, gRPC and MCP from Kong

Proof-based DAST and AppSec platform for web apps and APIs

Open-source phone and browser remote for terminal coding agents

AI code review that risk-scores PRs and auto-approves the safe ones

Shared memory layer for AI agents via API, SDK, CLI and MCP

Free tray app that runs llama.cpp models as one local AI server

Cloud computers for AI agents: sandboxes, desktops and Android phones

Low-cost agentic coding models, video and speech via API and M Plan

Builds native n8n, Make, Zapier and Activepieces apps from your API

Proxy that cuts AI agent model costs and stops runaway spending

Serverless Postgres with branching

Build, test and deploy production MCP servers in one platform

The original notch app for Mac, taken to the next level.

Routes coding agents through your AI plans, API keys and local models

Email inboxes for AI agents, with replies pushed by webhook

Shared workspace where a team steers its coding agents together

Mac security suite that guards your machine from AI coding agents

AI on-call engineer that investigates and fixes production issues

Click a UI bug on localhost and your AI coding agent fixes it

Approve coding agent requests from your phone or Mac, with a record

Open-source Kubernetes UI and MCP server for engineers and agents

Open-model API with flat monthly plans for coding agents

Auth platform for B2B apps and AI agents, with an MCP gateway

Voice-first Mac harness for running several coding agents at once

Plain-language product map and changelog built from your code

OpenTelemetry-based tracing, cost tracking and evals for AI agents

Open-source monitoring that finds why production AI agents fail

Autonomous AI QA that builds and heals web app tests from a URL

Cloud test automation for web and mobile apps

Checks that AI coding agents build what you asked, with tests as proof

Open-source platform for durable background jobs and AI agents

Uncensored AI chat and language models through one API

Browser-based meeting rooms and embeddable video API

Open-source desktop canvas for reviewing coding agent work

Keyword discovery and SERP research through REST and native MCP.

Plans an app's architecture before you prompt an AI builder

Design hand-off and documentation for product teams