15,347 tools
Compare plans, free tiers and API access across thousands of AI tools — every fact carries its source and check date.
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Free planDeveloper tools
Judge0 is an open source, sandboxed online code execution engine for humans and AI agents. It powers competitive programming, e-learning, assessment, and IDE products with support for many programming languages and a documented HTTP API.
Free planCoding agent
Jules is Google’s autonomous coding agent that connects to GitHub, clones your repo on a cloud VM, plans work with Gemini models, shows diffs for review, and opens pull requests when you approve changes. You assign tasks via prompts or the jules label on issues for bug fixes, tests, version bumps, and feature work.
Free tier unknownAssistant
Julius is cataloged at julius.ai, but automated research could not retrieve marketing or pricing copy from the official domain during this check. The homepage fetch returned only a Cloudflare managed challenge interstitial rather than product content.
Free tier unknownCode
Jumpstart Pro is a commercial Ruby on Rails (and companion iOS and Android) app template from Chris Oliver’s team. It bundles authentication, multitenancy, payments, TailwindCSS, admin dashboards, and API scaffolding so founders ship SaaS products without rebuilding common boilerplate.
Free planAssistant
Junction is a healthcare data platform that unifies nationwide lab testing and wearable device streams through one API. Teams integrate 300+ devices, build custom lab experiences across U.S. states, and scale diagnostic workflows with HIPAA-oriented operations support.
Free tier unknownAssistant
Junction Bioscience is a biotechnology company with a minimal public web presence listing corporate contact information. The site identifies the organization as Junction Bioscience without detailing a software product or platform on the homepage.
Free planVideo
Jungle (Jungle AI) turns documents, YouTube videos, and lecture recordings into flashcards, quizzes, and AI tutor chats for exam prep. The pricing page lists a free tier with generation caps plus Pro and Elite upgrades for unlimited study material and advanced question modes.
Free planCode
JungleJS is an open Jamstack framework built around Svelte and GraphQL. It pulls content from headless CMSes, git-based CMSes, or APIs, compiles static sites, and deploys to hosts such as Netlify, Vercel, or GitHub Pages with less boilerplate than hand-rolling a Svelte data layer.
Developer Tools
Junius is a Windows local-execution service that exposes workspace files, processes, background jobs, Git, browser automation and desktop interaction to an MCP-connected assistant. It separates the assistant’s decisions from local execution and includes access to agent skills. The repository documents installation, architecture and the boundaries of its local runtime.
Free tier unknownOperations
juntagrico is a web application for solidary agriculture (Solawi) groups that reduces administrative paperwork around member food shares. A community association maintains the software so farms can focus on production instead of improvised spreadsheets.
Free trialAI language learning
Juntos teaches conversational Latin American Spanish with AI grading, written practice and voice calls. Its tutor names errors, shows a correction and explanation and stores recurring slips in an Error Bank that informs later sessions. Courses, games and friend chat remain free; Pro adds the structured program and AI access.
Free tier unknownResearch
Just the Answer is a minimalist LLM-powered search experience that promises direct answers without long generative fluff. The public app focuses on a simple search box and optional browser search-engine integration.
Free planAssistant
Just Think AI combines free public AI tools and templates with paid consulting engagements that ship custom agents, voice systems, and content engines. The pricing page separates forever-free utilities from fixed-fee projects and monthly embedded AI partner retainers.
Free to startAI business websites
JustBuildt is an AI website builder for local businesses that starts from a business listing and supports plain-language edits. Published sites include service/location pages and hosting on a JustBuildt subdomain. Higher plans add ongoing analytics, content and maintenance services.
Free trialAssistant
Jutsoo is an AI bookkeeper you chat with to capture, code, and reconcile transactions from uploaded statements into double-entry books. The product keeps accounts reconciled continuously so month-end is mostly review and sign-off rather than manual data entry.
Free tier unknownAssistant
JuziBot (句子互动) deploys production AI employees for Chinese enterprises across sales, customer service, compliance, and data workflows. The company combines seven product lines with implementation teams so agents run in high-compliance verticals such as finance, retail, education, and government.
Free tier unknownAssistant
Kaagaz Scanner is a mobile-first document suite for India with scanning, PDF editing, storage, and AI-powered growth tools. The site reports more than 35 million users and positions separate document-management and marketing outcomes for smartphone-first workflows.
Free planCode
The official site provides documentation, examples, and playground resources for building browser games with a simple component-oriented API.
Free planCode
Apache Kafka is an open-source distributed event streaming platform used for high-performance pipelines, stream processing, analytics, and data integration. The project site describes core capabilities such as low-latency delivery, elastic scaling, durable storage, and Kafka Connect integrations.
Free trialResearch
Kagi is a privacy-focused search engine and assistant funded by users instead of ads. Plans range from a limited trial through unlimited search tiers with expanding Kagi Assistant models, fair-use billing credits, and optional family or team accounts.
Free planImages
kahma.io publishes guides, knowledge-base articles, and free browser utilities about AI portrait and headshot creation.
Free tier unknownAI video
The brand remains active with an AI video positioning and Vercel-hosted app at kaiber.ai.
Free tier unknownAssistant
Kaigo Health provides an outsourced business office for skilled nursing facilities that combines human experts and AI agents to recover pharmacy and vendor overcharges and capture missed reimbursements. Teams export financial, census, and contract data so Kaigo can investigate line-by-line and execute appeals, prior authorizations, and ADRs.
Free tier unknownResearch
Kailash Labs is a video research lab building small, grounded video understanding models and benchmarks. The team converts world video into structured data machines can reason over and offers early SDK access to design partners in robotics, security, industrial, sports, and media.
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