4,021 tools
Free planResearch
Animated AI is a creator site publishing animations and instructional videos about neural networks, with topics like convolution, padding, and related algorithms. The homepage links to Patreon and YouTube rather than selling hosted software.
Free planResearch
AnimatedLLM is an interactive educational web experience that explains how large language models work using animations and visualizations. The project helps learners understand transformer-style behavior under the hood without installing software, and is authored as a public GitHub Pages demo.
Free tier unknownResearch
Anse is a minimal web chat front end that prompts visitors to enter a question and receive AI answers elegantly, per its site description.
Free planWriting
Apache Answer is a free open-source Q&A platform for community forums, help centers, and internal knowledge bases. The project site positions it for teams at any scale with docs, GitHub sources, and a getting-started path.
Free tier unknownResearch
Answerly turns documentation into a customer-facing AI support agent that sticks to your data to reduce hallucinations. Marketing emphasizes honest, instant answers grounded in uploaded knowledge rather than open-ended guessing.
Free to startResearch
AnswerThePublic is a keyword and content research tool from Neil Patel that visualizes search questions, comparisons, and related queries around a topic. Teams use it to discover content ideas, compare search demand, and plan SEO or content studio workflows.
Free planResearch
AnswerThis is a Y Combinator–backed research assistant for literature reviews and evidence workflows. Researchers upload drafts or questions, search a large paper and trial corpus, evaluate citations, and run PRISMA- or Cochrane-aligned systematic review steps with export to reference managers.
Free tier unknownResearch
Anthrogen is an AI research lab for the biological sciences engineering post-modality biology. It develops AI systems to design modular biological machines alongside experimental infrastructure, arguing future biotech will compose parts rather than stay siloed by historical modalities.
Free planAPI
Antideo provides validation and reputation APIs for email addresses, IP addresses, and phone numbers, plus WordPress plugins for signup protection. The homepage and pricing page market free hourly quotas and stepped monthly subscriptions with higher request rates and soft-limit buffering on paid tiers.
Free tier unknownCode
Antigen provides AI-powered continuous penetration testing for modern infrastructure. Its platform maps attack surfaces, runs offensive agents such as tCell, tracks vulnerabilities with evidence, prepares remediations for human review, and integrates with cloud providers, IDEs, and ticketing tools via SDKs and webhooks.
Free to startResearch
Anymail Finder is a B2B email discovery and verification service for sales, recruiting, and lead generation workflows. The site provides single searches, bulk uploads, a Chrome extension, and an API with credit-based billing and live verification before charges apply.
Free tier unknownResearch
Anymark delivers data-informed logo and brand kits for startups, freelancers, and agencies, combining handcrafted design templates with AI logo generation alternatives. The site also advertises a logo generation API and playbook resources for full-brand projects.
Free planCode
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 planCode
Apache Drill is a distributed SQL query engine for schema-free analytics on Hadoop, NoSQL, and cloud storage without upfront schema definition. The project site documents ODBC/JDBC access, nested data support, and deployment options for interactive BI and exploration workloads.
Free planCode
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 planCode
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 planCode
Apache Nutch is a mature, extensible web crawler built for large-scale data acquisition with Hadoop-friendly batch processing. The site describes pluggable parsing, indexing, and scoring pipelines with integrations for Apache Tika, Solr, and Elasticsearch.
Free planCode
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 planResearch
Apache Solr is an open-source search platform built on Apache Lucene with full-text, vector, and geospatial capabilities. The project site covers downloads, Solr Operator releases, security advisories, and learning resources for distributed search deployments.
Free planCode
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 planCode
Apache Storm is a free, open-source distributed realtime computation system for processing unbounded data streams with low latency. The project site documents core APIs, deployment guidance, and downloads for clusters you manage.
Free tier unknownResearch
Apeiron AI is a Flutter web application marketed as a daily AI assistant from Apeiron Tech.
Free planResearch
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 planCode
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 1,344 of 4,021 tools
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