2,280 tools
Free planCoding & development
Anypost is a transactional and broadcast email API with Markdown rendering, multi-language SDKs, tags, tracking, and webhooks. The homepage advertises a free monthly message allowance, usage-based overage pricing as low as eight cents per thousand sends, and AI-assisted template generation.
Free planCoding & development
Apache Calcite is a dynamic data management framework providing SQL parsing, validation, relational algebra, and cost-based optimization. The project homepage positions Calcite as foundation software for high-performance databases and federated query engines with adapter integrations.
Free planCoding & development
Apache Cayenne is a Java object-relational mapping framework with a modeler GUI, transparent transactions, and extension APIs. The project site distributes CayenneModeler for reverse-engineering schemas and generating persistent object mappings for Java applications.
Free planCoding & development
Apache JMeter is a Java application for load testing functional behavior and measuring performance of web services, databases, and other targets. The project site provides releases, component references, distributed testing guides, and extensibility docs for custom samplers.
Free planCoding & development
Apache Lucene is a high-performance search library providing indexing and query algorithms that power Solr, Elasticsearch, and OpenSearch. The Lucene site highlights core search APIs, a large contributor community, and Apache 2.0 licensing for embedding in Java applications.
Free planCoding & development
Apache Mahout is a machine learning environment focused on building scalable, performant ML applications, with recent work emphasizing quantum and tensor tooling such as Qumat. The homepage invites developers to install Mahout packages and explore documentation for distributed algorithms.
Free planCoding & development
The project homepage highlights smart editing, refactoring, plugin support, and downloadable releases such as Apache NetBeans 31.
Free planCoding & development
Apache POI is the Java library for reading and writing Microsoft Office formats such as Excel, Word, and PowerPoint. The project site publishes release notes, component APIs, encryption support details, and download links for integrators building document automation.
Free planCoding & development
Apache Pulsar is a cloud-native distributed messaging and streaming platform supporting multi-tenant topics, geo-replication, and unified queueing plus streaming semantics. The homepage highlights client libraries, Pulsar Functions, and deployment at scale across hundreds of organizations.
Free planCoding & development
Apache RocketMQ is an open-source distributed messaging and streaming platform positioned for high-throughput eventing, AI agent coordination, and session-style workloads. The project site documents releases, downloads, and architecture guidance for brokers you operate.
Free planSecurity & privacy
Apache Shiro is a Java security framework for authentication, authorization, cryptography, and session management in web and enterprise apps. The official site provides documentation, integrations, and community resources for embedding Shiro in JVM applications.
Free planCoding & development
Apache Spark is an open-source unified analytics engine for large-scale data engineering, SQL, streaming, machine learning, and graph processing. The project site documents APIs in Python, Scala, Java, and R plus deployment guidance for clusters you operate.
Free planCoding & development
Apache Thrift is a cross-language RPC framework combining a software stack with a code generator for efficient services. The official site hosts downloads, compiler build instructions, and tutorials for defining .thrift IDL services.
Free planCoding & development
Apache Wicket is an open-source Java web framework for building maintainable server-side applications with reusable components. The project homepage announces Wicket 10, Java 17 baselines, and documentation for modern web apps written in Java.
Coding & development
Aperture is an AI code editor with built-in checking of generated software changes.
Free planCoding & development
The vendor emphasizes design-first workflows, Postman compatibility, and a free tier for small teams while paid Basic and Professional tiers remain marked coming soon on pricing.
Free planCoding & development
ApiFlash provides a hosted screenshot API built on Chrome and AWS Lambda for pixel-perfect full-page, mobile, and responsive captures. Developers call HTTPS endpoints to render URLs with options for ad blocking, cookie banners, and S3 export.
Free planAI agents & automation
Apify is a web automation platform with a store of Actors for scraping, data extraction, and AI agent integrations, plus prepaid platform usage on subscription plans for running jobs at scale.
Free planCoding & development
ApiNotes generates interactive API documentation, changelogs, and mock servers from OpenAPI or Bruno collections pushed via GitHub, CI, or uploads. The mock-server tool creates temporary REST endpoints for frontend testing without mandatory signup.
Free planCoding & development
API Platform is a free PHP/Symfony framework for building hypermedia and GraphQL web APIs, admin UIs, and client scaffolds. The official site showcases Mercure realtime updates, API Platform Admin, client generators for React and Vue stacks, and optional enterprise support from Les-Tilleuls.coop.
Free trialCoding & development
APISCRAPY is an AI-driven web and app scraping platform that converts sites into data APIs, with a Web Scraper IDE, managed automation, labeling tools, and tiered cloud pricing for page loads and compute.
Free planCoding & development
API Status Check monitors hundreds of third-party API and consumer service status pages and surfaces outage dashboards, badges, and alerts. The site aggregates real-time dependency health so teams can detect upstream failures before users report them.
Free planCoding & development
APITemplate.io generates PDF documents and images from reusable templates via REST API, Zapier, Make, and n8n integrations. The service offers separate PDF-only and image-plus-PDF plan families with a free tier and paid monthly USD tiers for higher document volumes.
Free planCoding & development
APIVerve bundles 300+ production HTTP APIs behind one API key with credit-based pricing and consistent schemas. The homepage promises predictable credit pricing, uptime SLAs on paid plans, and a single bill for many utility endpoints.
Showing 504 of 2,280 tools
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