All Developer Tools

PuppyGraph — DBaaS / Serverless Databases tool for developers. Specializes in Graph Database.

Purchasely — Mobile subscription paywall and in-app purchase management SDK for iOS and Android with A/B testing and analytics.

PushBase — Web push notification platform with subscriber management, automation flows, and segmentation for content publishers.

PushBots — multi-platform push notifications for iOS, Android, and web with campaign automation and segmentation.

PushEngage — Web push notification platform for e-commerce and content sites with cart abandonment, browse abandonment, and drip campaigns.

Pusher — Real-time messaging platform with Channels for pub/sub and Beams for push notifications.

Pusher Channels — CI/CD for Applications tool for developers. Specializes in Real time Messaging.

Pushnami — web push messaging platform with monetization, audience growth, and segmentation for publishers and marketers.

Pushover — CI/CD for Applications tool for developers. Specializes in Notifications.

Pushpad — web push notifications service for developers, with REST API, WordPress plugin, and unlimited subscribers on paid plans.

Pushwoosh — Cross-platform push notification service supporting iOS, Android, and web with segmentation, automation, and analytics.

Pushy — reliable push notification delivery service using MQTT for Android, iOS, and web with guaranteed delivery focus.

py-spy — CI/CD for Applications tool for developers. Specializes in Profiler.

PyAirbyte — Data Integration / ETL / Reverse ETL tool for developers. Specializes in Data Pipeline.

PyArrow — Data Integration / ETL / Reverse ETL tool for developers. Specializes in Data Format.

pycodestyle — CI/CD for Applications tool for developers. Specializes in Code Linter.

Pydantic — AI API / SDK for Developers tool for developers. Specializes in Data Validation.

Pydantic AI — AI API / SDK for Developers tool for developers. Specializes in Agent Framework.

Pydantic Settings — CI/CD for Applications tool for developers. Specializes in Configuration Management.

PyDub — CI/CD for Applications tool for developers. Specializes in Audio Processing.

Pyenv — CI/CD for Applications tool for developers. Specializes in Python Version Manager.

Pyflakes — CI/CD for Applications tool for developers. Specializes in Code Linter.

Pygments — CI/CD for Applications tool for developers. Specializes in Syntax Highlighter.

PyInfra — CI/CD for Applications tool for developers. Specializes in Infrastructure Automation.

Pyinstrument — CI/CD for Applications tool for developers. Specializes in Profiler.

PyJWT — Security Scanning / Mobile App Sec tool for developers. Specializes in Authentication.

Pylama — CI/CD for Applications tool for developers. Specializes in Code Linter.

Pylint — CI/CD for Applications tool for developers. Specializes in Code Analysis.

Pylon — Customer Support SDK / In-app Helpdesk tool for developers. Specializes in B2B Support Platform.

PyNaCl — CI/CD for Applications tool for developers. Specializes in Cryptography Library.

PynamoDB — Data Integration / ETL / Reverse ETL tool for developers. Specializes in ORM.

pypdf — CI/CD for Applications tool for developers. Specializes in PDF Processing.

PyPI — Python Package Index; the official repository for distributing and installing Python packages via pip.

PyProj — CI/CD for Applications tool for developers. Specializes in Geospatial.

PyQt — CI/CD for Applications tool for developers. Specializes in Qt Bindings.

Pyramid — CI/CD for Applications tool for developers. Specializes in Web Framework.

Pyre — CI/CD for Applications tool for developers. Specializes in Type Checker.

Pyrefly — CI/CD for Applications tool for developers. Specializes in Type Checker.

Pyright — CI/CD for Applications tool for developers. Specializes in Type Checker.

Pyroscope — CI/CD for Applications tool for developers. Specializes in APM.

Pytest — CI/CD for Applications tool for developers. Specializes in Testing Framework.

Pytest plugin providing fixtures and decorators for testing asynchronous Python code using asyncio, including async fixtures and event loop management.

Pytest plugin implementing a subset of the Gherkin language, enabling behavior-driven development tests alongside regular pytest tests without extra runners.

Pytest fixture for benchmarking code with statistical analysis, comparing runs across commits and generating rich performance reports.

pytest-cov — Test Automation / Device Cloud tool for developers. Specializes in Code Coverage.

Pytest plugin that adds Django support with fixtures for database access, client requests, and settings, running Django test suites faster than manage.py test.

Pytest plugin for testing Flask applications with fixtures to access the Flask test client, application context and live server.

Pytest plugin generating self-contained HTML reports for test runs, with embedded test results, screenshots and custom metadata.

Thin wrapper around unittest.mock providing a mocker fixture for pytest, making it easier to patch objects and configure mocks in tests.

Pytest plugin for running Selenium WebDriver tests, providing fixtures for browsers, capabilities and Sauce Labs/BrowserStack integration.

Pytest plugin for distributed test execution across multiple CPUs and machines, plus loop-on-failures modes to speed up large test suites.

Python Decouple — CI/CD for Applications tool for developers. Specializes in Configuration Management.

Python Fire — CI/CD for Applications tool for developers. Specializes in CLI Generator.

Python JSON Logger — CI/CD for Applications tool for developers. Specializes in Logging.

Python Telegram Bot — CI/CD for Applications tool for developers. Specializes in Bot Framework.

python-dateutil — CI/CD for Applications tool for developers. Specializes in Date/Time.

python-dotenv — CI/CD for Applications tool for developers. Specializes in Configuration Management.

PyTorch — CI/CD for Applications tool for developers. Specializes in Deep Learning.

PyTorch Lightning — AI API / SDK for Developers tool for developers. Specializes in Deep Learning.

Pytype — CI/CD for Applications tool for developers. Specializes in Type Checker.

pyzmq — CI/CD for Applications tool for developers. Specializes in Messaging.

QA Wolf — Test Automation / Device Cloud tool for developers. Specializes in QA as a Service.

Qase — CI/CD for Applications tool for developers. Specializes in Test Management.

Qdrant — Search / Recommendations API tool for developers. Specializes in vector database.

Japans largest engineer knowledge-sharing community — OAuth-protected API for articles, tags and user data.

Full-stack Chinese cloud (青云QingCloud) offering public/private cloud, KubeSphere container platform, AI infrastructure. STAR Market-listed.

Qlik AI — AI API / SDK for Developers tool for developers. Specializes in AI Analytics.

Qodana — CI/CD for Applications tool for developers. Specializes in Code Quality.

Qoddi — Backend-as-a-Service tool for developers. Specializes in deployment.

Qodo — AI code quality platform for automated test generation, code review, and pull request analysis.

Qonversion — Mobile subscription analytics and attribution SDK linking App Store and Play Store purchases to marketing campaigns.

Qovery — CI/CD for Applications tool for developers. Specializes in deployment platform.

Polyglot observability stack on ClickHouse providing drop-in replacements for Loki, Prometheus, Tempo and Datadog APIs.

QStash — CI/CD for Applications tool for developers. Specializes in Message Queue.

Cross-platform C++/QML framework for building desktop, mobile, and embedded apps with native look and feel.

qTest — CI/CD for Applications tool for developers. Specializes in Test Management.

Global tax compliance API for calculation, invoicing, and cross-border VAT/GST.

Quadient AR — Credit-to-cash platform (formerly YayPay) with predictive analytics for mid-market and enterprise

Qualys VMDR — Security Scanning / Mobile App Sec tool for developers. Specializes in Vulnerability Management.

Qualysec — Security Scanning / Mobile App Sec tool for developers. Specializes in Penetration Testing.

Quantifind applies AI to structured and unstructured external data to streamline AML, KYC and investigations workflows, with risk screening partnerships with major banks and government agencies.

QuantLib — CI/CD for Applications tool for developers. Specializes in Quantitative Finance.

Smart-contract security firm offering audits and Chainproof insurance; builds tooling for DeFi and infrastructure protocols.

Quantstruct — AI-powered quantitative finance platform for analyzing financial data and building trading strategies.

Quantum Metric — Continuous product design platform using session replay and behavioral analytics for enterprise digital teams.

Quarkus — CI/CD for Applications tool for developers. Specializes in Java Framework.

Quay — CI/CD for Applications tool for developers. Specializes in Container Registry.

Quay.io — CI/CD for Applications tool for developers. Specializes in Container Registry.

QueryGlow — CI/CD for Applications tool for developers. Specializes in Database GUI.

Quest Labs — User engagement and growth SDK using AI to personalize onboarding and in-app messaging.

QuestDB — DBaaS / Serverless Databases tool for developers. Specializes in time series db.

Questflow — No-code AI automation builder for creating multi-agent workflows across web apps and APIs.

Quickbase — CI/CD for Applications tool for developers. Specializes in Low Code Platform.

QuickBooks — CI/CD for Applications tool for developers. Specializes in Accounting.

Open-source chart image API (Chart.js as a service) for emails, PDFs, dashboards.

QuickLook — Session replay and user behavior analytics platform for understanding product engagement patterns.

QuickNode — Backend-as-a-Service tool for developers. Specializes in blockchain infra.

Quickwit — Search / Recommendations API tool for developers. Specializes in Log Search Engine.

Quickwork — CI/CD for Applications tool for developers. Specializes in Workflow Automation.

Quikk API — Developer-first payment orchestration API for routing transactions across multiple PSPs with smart retry and failover logic.

Quintype — No-code / Low-code App Builders tool for developers. Specializes in headless cms.

Quirrel — CI/CD for Applications tool for developers. Specializes in Job Queues & Background Jobs.

Quivr — AI API / SDK for Developers tool for developers. Specializes in rag platform.

Quix — Data Integration / ETL / Reverse ETL tool for developers. Specializes in stream processing.

JavaScript unit testing framework originally built for jQuery, now a standalone tool used by Ember, jQuery and many other libraries.

Quokka.js — Code Assistants / Agent Tooling tool for developers. Specializes in JavaScript Scratchpad.

Qwen (Alibaba) — AI API / SDK for Developers tool for developers. Specializes in LLM.

Qwen API — AI API / SDK for Developers tool for developers. Specializes in LLM API.

Qwiet AI — Security Scanning / Mobile App Sec tool for developers. Specializes in application security.

RabbitMQ — Messaging API (Email / SMS / Voice) tool for developers. Specializes in message queue.

Radar — Location infrastructure platform with geofencing, geocoding, trip tracking, and fraud detection APIs.

RadASO — app marketing agency offering ASO, paid UA, localization, CRO, retention and mobile analytics with proprietary RadASO Tech Boosted Solution for Apple Search Ads cannibalization management.

Radiant Security — Security Scanning / Mobile App Sec tool for developers. Specializes in AI SIEM/SOC Automation.

Radicle — Peer-to-peer code collaboration protocol built on Git for sovereign, decentralized OSS development workflows.

Radius — CI/CD for Applications tool for developers. Specializes in Platform Engineering.

Radix UI — CI/CD for Applications tool for developers. Specializes in UI Component Library.

Radware Bot Manager (formerly ShieldSquare) uses intent-based deep-behavior analysis and device fingerprinting to detect and block bad bots, scraping, ATO and payment fraud across web, mobile and APIs. It offers connectors for major CDNs an

Rafay — CI/CD for Applications tool for developers. Specializes in Kubernetes Operations.

Ragas — AI API / SDK for Developers tool for developers. Specializes in RAG Evaluation.

Open-source RAG engine with deep document understanding, hybrid search and agent orchestration by Chinese startup InfiniFlow.