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Free tier unknownVideo
KeyTakes delivers instant readable and audible summaries of articles and YouTube videos through its web app and browser extension. The homepage promotes high-quality key takeaways and a KeyTakes Pro upgrade path for extended usage.
Free tier unknownVideo
Keytopic summarizes long YouTube videos, podcasts, and tutorials into quick takeaways so learners absorb key points faster. The public site focuses on signing in to process trending educational content categories such as health, relationships, and productivity topics.
Free tier unknownAssistant
KeyTrends is an ecommerce content marketing platform that blends trend data, keyword research, entity analysis, and generative AI to accelerate content strategy. Retail teams discover traffic opportunities, compare competitors, and produce product-oriented content with AI assistants tied to merchant data.
Free trialAssistant
KeywordCaddy is an AI-powered SEO platform for local service businesses that unifies content analysis, rank tracking, backlink monitoring, and an unlimited AI writer. The SaaS tier targets small businesses ranking on Google and AI search surfaces with optional done-for-you services.
Free to startResearch
Keyword Catcher delivers one-click Google SERP analysis and long-tail keyword discovery for content teams. Each credit analyzes a keyword SERP with ranking URLs, word counts, velocity metrics, AI post outlines, and rank tracking to prioritize winnable terms.
Free trialAssistant
Keyword Insights builds SEO topical authority by clustering keywords, generating briefs, and writing optimized content while surfacing Reddit, Quora, and YouTube opportunities. Teams move from research to published articles with credit-based clustering, briefs, and AI writing agents.
Free trialResearch
Keywordly is an SEO content workflow platform covering keyword research, clustering, topical maps, content generation, optimization, and AI visibility tracking. It targets solo operators through agencies with Agentic AI SEO auto-blogging and brand visibility monitoring.
Free planResearch
Keywords Everywhere is a browser extension that surfaces SEO, PPC, YouTube, and ecommerce metrics while you browse. Marketers install the Chrome, Firefox, or Edge add-on, use several free utilities instantly, and optionally buy credit packs via annual subscriptions for full keyword volume data.
Free planAssistant
Keywords.am is an Amazon listing optimization platform that diagnoses where shoppers drop off across 21 marketplaces. Sellers use intent-decoded keyword research, TFSD listing editor exports, audit reports, and unlimited AI assists on paid plans to fix conversion leaks.
Free trialVideo
KeywordSearch uses AI to build Google and YouTube ad audiences, research keywords, expand topic lists, and spy on competitor YouTube ads. Marketers describe their business once, generate targeting segments, and sync audiences to Google Ads from a unified research suite.
Free trialResearch
KeywordsPeopleUse is a keyword research platform centered on People Also Ask, Google Autocomplete, Reddit and Quora discovery, semantic keywords, clustering, and an AI assistant. Paid plans sell monthly credits for deep search, bulk CSV uploads, exports, and API access.
Free tier unknownResearch
KeywordToPin is a Pinterest marketing suite for discovering trending keywords and pin designs, analyzing trends, and scheduling or automating pin publishing. The public site markets an all-in-one research and automation workflow for bloggers and social marketers.
Free to startAssistant
Keywrds.ai uses a GPT-4o-mini powered engine to expand seed keywords into large keyword lists, questions, topics, and blog outlines with search volume and difficulty estimates. It also scrapes Google People Also Ask and can draft answers for content teams.
Free tier unknownCode
KFR is a commercial-friendly C++ digital signal processing framework offering FFT/DFT, filters, resampling, audio I/O, and math utilities optimized for SIMD on Intel, AMD, ARM, and Apple CPUs. Audio, scientific, and embedded teams embed KFR algorithms in desktop and mobile products.
Free planAssistant
Khan Academy hosts Khan Labs at khanacademy.org/khan-labs within its nonprofit learning site.
Free planResearch
Khanmigo is Khan Academy’s AI teaching assistant and tutor for teachers, learners, and families. Teachers get free lesson-planning, rubric, and student-summary tools, while learners and parents can access guided tutoring, writing practice, and coding coaching on Khan Academy content.
Free tier unknownResearch
Khoj is an applied AI company building open, human-centric tools including Open Paper for literature review, Pipali as a desktop AI co-worker, and the self-hostable Khoj personal assistant. The hosted Khoj Cloud service was sunset in April 2026 while the open-source project continues.
Free tier unknownAssistant
Khotan builds bespoke procurement software by connecting, cleaning, and reconciling structured and unstructured spend data, then encoding customer approval rules into applications. Agents run with private inference on customer-controlled data rather than generic off-the-shelf procurement suites.
Free planImages
Khroma is a browser-based AI color tool that learns palettes you like, generates endless combinations, and lets you search by hue, value, and hex codes. Saved combos include accessibility ratings and exportable CSS values for design work.
Free planAssistant
KickBot is a cloud-based bot for Kick.com streamers combining chat commands, moderation, alerts, overlays, tipping, widgets, AI text-to-speech with thousands of voices, instant clip creation, and VOD utilities. Setup is browser-based with no downloads required.
Free planAssistant
KickoffLabs helps marketers launch viral giveaways, referral waitlists, sweepstakes, and product pre-launch campaigns with landing pages, popups, leaderboards, fraud detection, and AI-generated campaign drafts. Plans scale by monthly leads captured through KickoffLabs forms.
Free tier unknownImages
KickRender is a browser-based AI rendering platform for architects and interior designers. Users upload 3DM or FBX models, apply global and regional prompts, iterate on lighting and materials, and export 1K–4K photorealistic visuals without local GPU installs.
Free trialAssistant
Kickscale is an AI revenue intelligence platform for B2B sales teams that records customer meetings, syncs CRM data, coaches reps, and surfaces deal risks and forecasts. It bundles meeting capture, sales coaching scorecards, deal intelligence, and revenue analytics for RevOps-led organizations.
Free planImages
Kidgeni is a COPPA-conscious creative app where children ages 5–12 make AI art, stories, comics, movies, and learning content inside a moderated environment. Parents and teachers control accounts while kids spend Sparks credits on generation features.
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