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 planCode
KaiMail is a developer-first email service for custom domains. It provides forwarding, ARC/DKIM signing, webhook delivery, SMTP sending, and mailing lists with a simple control panel, targeting teams that want domain email without running their own mail stack.
Free planMeetings
Kaiwa is an open-source web client for XMPP chat, designed to pair with servers such as Prosody. It supports modern chat features including multi-user rooms, private messaging, archives, LDAP user management, mentions, and rich media embeds.
Free to startAssistant
Kaizan is client intelligence software for agencies and client-service teams, using AI helpers and CARE scoring to grow client ROI, satisfaction, and revenue. Pricing is portfolio-based in GBP with unlimited users and a free 14-day pilot on customer data.
Free tier unknownReal estate AI
Kaizen AI is a real-estate design optimization service that uses proprietary AI simulations on schematic building designs to increase saleable area, cut construction waste, and improve carbon outcomes. Engagements run on a success-fee model with architecture experts and a four-week optimization workflow rather than self-serve software.
Free planCode
Kakoune is a selection-first, modal code editor focused on efficient text editing through composable commands and multiple selections. The official site documents installation, key bindings, and design philosophy for developers who prefer modal editing with explicit selection semantics.
Free planSpeech
Kaldi is an open source speech recognition toolkit maintained by the research community. It provides training and decoding recipes for automatic speech recognition experiments, with code hosted on GitHub and documentation on kaldi-asr.org.
Free tier unknownAssistant
Kalendar is listed at kalendar.ai, but the official homepage could not be read during automated research. Fetching kalendar.ai returned a Cloudflare security block page instead of product marketing HTML.
Free planCode
Kali Linux is an open-source Debian-based distribution maintained by Offensive Security for penetration testing, security auditing, and ethical hacking. It ships hundreds of preinstalled security tools, documentation, community forums, and optional commercial training paths.
Free tier unknownAssistant
Kalinda is an AI intake specialist for personal injury law firms. It answers and returns calls, qualifies leads, and drives retainers from first contact through signed intake so firms convert more of the demand they already generate.
Free planAssistant
KalTalk is an AI customer-support agent that answers from your documentation across web chat, email, and WhatsApp, using your brand tone and escalating to humans with ticket context when needed. Setup centers on uploading SOPs and guidelines, then monitoring conversations and analytics.
Free tier unknownCode
Kaminari is a personal Next.js starter template showcased on Vercel. The landing page positions it as a preconfigured project where common setup chores are already handled so developers can clone the repo and focus on application features instead of boilerplate wiring.
Free planAssistant
Kanaries builds open-source and cloud data visualization tools, including PyGWalker, Graphic Walker, RATH, and Runcell, an AI code agent for Jupyter notebooks. The site markets an AI-powered workspace to explore datasets, create charts, and automate analysis workflows across Python, R, and browser-based tools.
Free planAssistant
KanbanFlow is a lean project management web app combining Kanban boards, Pomodoro timing, and team collaboration. Teams visualize work-in-progress limits, track time on tasks, and upgrade to Premium for analytics, integrations, and advanced reporting.
Free planProject management
Kanboard is a free, open source Kanban project management application focused on simplicity. Teams install it on their own server to visualize work with boards, columns, and tasks without heavyweight enterprise PM features.
Free tier unknownAssistant
Kandor is an AI career and university intelligence platform that recommends careers, courses, universities, and application paths using outcomes, finances, and admission criteria. The landing experience also advertises IELTS preparation support for students planning international study.
Free to startCode
Kane CLI is TestMu AI’s terminal agent for AI-driven browser testing. Developers describe flows in plain English, Kane CLI drives real Chrome locally, and runs return pass or fail results with replayable evidence packs—without maintaining selector-based scripts.
Free planProject management
Kaneo is open source, self-hosted project management with boards, Gantt charts, and GitHub integration. Kaneo Cloud offers managed hosting with a trial, while self-hosting remains free with SSO included according to the vendor site.
Free planAssistant
kant.dev is a technical services partner that embeds AI into existing business systems such as PIM, CRM, and ERP stacks. The team builds retrieval and agent workflows, master-data integrations, and automation that connect documents, catalogs, and operational tools rather than selling a standalone SaaS app.
Free trialAI business messaging
Kanzan AI is a WhatsApp and website-chat assistant for Pakistani businesses, with Roman Urdu/English support and industry playbooks. It combines AI answers, voice-note handling, a no-code flow builder and campaign workflows. Higher plans add team inbox features and connections for Shopify, WooCommerce or custom store hooks.
Free trialAssistant
Kapsul offers programmable storage-as-a-software with adaptive privacy, multi-cloud support, and compliance tooling backed by blockchain-style verifiability claims. Customers configure hot, warm, and cold tiers and pay for storage, egress, and API usage rather than a flat SaaS seat model.
Free planMeetings
Kaption AI adds transcription, translation, summaries, and AI assistants to WhatsApp Web through Chrome and Edge extensions, plus desktop and mobile apps. It targets users who want to read voice notes as text, search transcripts, schedule messages, and record calls without leaving WhatsApp Web.
Video editing
Kapwing is an online video editor with subtitles, resizing, templates and AI tools, offered with a free tier and paid Pro and Business plans for longer exports and no watermark.
Free planAssistant
Kapwing is a browser-based video creation suite with AI tools to generate projects from prompts, auto-subtitle, dub, repurpose long videos into clips, and clean audio. Teams use shared workspaces, brand kits, and credit-based exports up to 4K for marketing and social content.
Free planResearch
KaraboAI is a chatbot-as-a-service platform to train, deploy, and embed custom GPT-style bots for support, lead capture, appointments, and WooCommerce sales. Bundled plans cover multiple bot types with message quotas, document training limits, and optional pay-per-bot pricing for agencies.
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