2,445 tools
Free planCoding & development
Greptile is an AI code reviewer that indexes repositories into a graph, runs parallel agents on each pull request, and learns team standards from prior comments. It integrates with GitHub and GitLab workflows, supports custom rules, and offers self-host and enterprise options for larger orgs.
Free to startAI agents & automation
Griptape helps creative professionals orchestrate multiple AI models and agents in visual Nodes workflows and Python when needed. The platform also offers an open framework and Griptape Cloud for deploying LLM applications with data integrations.
Free planProductivity (email, docs, PDFs)
Grist is a relational spreadsheet platform with cell-level access rules, automations, forms, and AI assistant tools including a free AI spreadsheet generator and MCP support. Teams can vibe-code apps from prompts, self-host, or use Grist’s managed cloud with granular permissions even for AI queries.
Free tier unknownCoding & development
Grit provides GritQL, a declarative language and CLI for searching and rewriting code across large repositories. Developers apply patterns with auto-fixes, reuse hundreds of standard modules, and automate migrations, custom linting, and dependency upgrades spanning many languages.
Free planCoding & development
GrowthBook is a warehouse-native platform for feature flags, A/B testing, and product analytics with optional self-hosting. It advertises SDKs for many stacks, an AI visual editor, MCP server integration, and predictable cloud pricing from free tiers to enterprise contracts.
Free planSecurity & privacy
Guardrails AI is an AI reliability platform and Python framework for input/output guards, structured outputs, and risk mitigation. Guardrails Hub catalogs validators for toxicity, PII, jailbreaks, and other policy checks in production GenAI apps.
Coding & development
GuRouter routes AI model requests through a unified developer API gateway.
Free planSecurity & privacy
gVisor is an open-source container security platform that adds a Linux-compatible sandbox layer so containers run with stronger isolation while staying compatible with existing container tooling. The project site documents architecture, compatibility, security model, and community resources.
Free planCoding & development
H2GIS extends the embedded H2 SQL database with OGC-compliant spatial types and functions for GIS workloads. It ships as an open-source LGPL library suitable for desktop, server, and lightweight mobile scenarios needing SQL spatial analysis.
Coding & development
Komplex AI Hallucination Detector estimates whether language-model responses contain unsupported content.
Free tier unknownCoding & development
Hamming AI is an enterprise voice and chat agent QA platform for pre-launch testing and production monitoring. It auto-generates scenarios, replays production calls, tracks 50+ metrics, and advertises SOC 2 certification.
Free planCoding & development
HandyAI hosts free in-browser AI developer utilities such as token counters, prompt analyzers, schema converters, and cost calculators.
Free planCoding & development
Happo is a visual regression and accessibility testing service that captures cross-browser UI snapshots in CI. It integrates with Storybook, Playwright, and Cypress so teams catch unintended UI changes and a11y issues before production releases.
Free tier unknownCoding & development
hardware intelligence builds AI tools for semiconductor and chip workflows. The public site highlights WaveZip for compressing lossless waveforms with large size and overhead reductions, with demos and a waitlist while products roll out.
Free planCoding & development
Harvis.dev is a static hosting service where you deploy folders from the CLI, web app, HTTP API, or MCP agent. Pricing follows a single usage ladder based on storage, requests, custom domains, and deploy counts rather than separate product tiers.
Free planCoding & development
Hasura provides the Data Delivery Network (DDN) and related GraphQL data products for instant APIs over connected sources. DDN emphasizes model-based pricing, supergraph development, federated collaboration, observability, and enterprise security options.
Free planCoding & development
Hatsu is a self-hosted bridge that connects static sites to the Fediverse. It redirects ActivityPub lookups for site users and permalinks, accepts follows, pushes new posts to followers, and backfeeds replies into the static site automatically after setup.
Free planAI agents & automation
Haystack is an open-source AI orchestration framework for production-grade agents and RAG pipelines with modular components, observability, and integrations to major model and vector providers. deepset also sells enterprise platform and support offerings on separate domains.
Free planCoding & development
Apache Hadoop is an open-source framework for reliable, scalable distributed computing, including the HDFS storage layer and MapReduce-style processing models. The project site distributes releases, documentation, and community governance for running large data sets across clusters.
Free tier unknownDesign, logos & websites
Teams upload heatmap overlays, pick improvement goals, and receive redesigned front-end code and written improvement reports without a full redesign agency cycle.
Free to startAI models & APIs
Hebbian Robotics verifies quality of robotics training data with models trained for robotics-specific checks and the open-source HFlow SDK. Teams can register checks, run pipelines locally, and schedule Airflow DAGs over multimodal episodes.
Free planCoding & development
Helicone is an LLMOps platform and AI Gateway for routing, debugging, and analyzing LLM applications. It targets fast-growing AI companies that need observability, caching, rate limits, alerts, and usage-based billing across OpenAI, Anthropic, Azure, and other providers.
Free planCoding & development
Helidon is Oracle’s open-source Java framework for cloud-native microservices and AI workloads, built around a virtual-thread web server core. It offers programmatic and declarative APIs, observability integrations, and a CLI for project scaffolding.
Free tier unknownCoding & development
HelixDB is a graph database for AI memory and connected company knowledge. It combines traversal and vector or BM25 search in one request for agent memory, retrieval apps, and industry-specific knowledge graphs.
Showing 1,320 of 2,445 tools
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