AI Tools Directory

NooksAI

Paid

Revenue infrastructure with AI agents that dial, run sequences, follow up and prepare deals alongside sales reps.

Nora AI

Paid

An AI mock interviewer that asks role-specific questions based on your resume and gives detailed feedback on your answers.

NotebookLM

Free

NotebookLM, now presented as Gemini Notebook, is Google's AI research assistant that studies your sources and helps make complex material easier to understand.

Notion AI

Freemium

Notion AI adds search, writing, analysis and chat to the Notion workspace, plus agents that handle repetitive tasks.

Nouswise

Freemium

A source-grounded AI agent for regulated industries that turns private data into cited answers, with cloud or on-premise deployment.

Novamira

Freemium

WordPress plugin that gives AI agents full access to run PHP, WP-CLI, database queries and file edits on your site.

NovelAI

Paid

An AI anime image generator and storytelling tool for creating original characters, scenes and long-form stories with AI.

Nucleus AI

Free

Conversational AI platform for businesses that deploys human-sounding phone agents to handle sales, scheduling and support calls.

Numerous AI

Paid

A spreadsheet add-on that brings ChatGPT into Google Sheets and Excel through a simple AI function in any cell.

nunu AI

Paid

nunu.ai uses AI agents to test games and apps, run market research and check compliance from plain English instructions.

NuPlay AI

Paid

NuPlay AI offers self-improving AI agents that run enterprise workflows, including voice and chat, and get better over time.

Nuqualis

Freemium

A dedicated AI inquiry inbox that answers customer emails from your business knowledge and forwards only the questions that need you.

Nurturally

Freemium

An AI platform that automates B2B lead nurturing with personalised, context-aware follow-up emails to close more deals.

Nutrish.ai

Freemium

AI nutrition platform for gyms and fitness chains that gives members personalised nutrition guidance to boost engagement.

nventr AI Agent

Free

nventr Agent is a business AI assistant for customer support, workflow automation and plain-language data queries.

OakGen

Freemium

One AI workspace for chat, images, video, voice, music and ads, using several leading models on a shared credit balance.

Octoverse

Paid

Nexa AI's generative AI work, including Octoverse, is now part of Qualcomm AI Hub, with further updates promised soon.

Odysseus AI

Paid

A privacy-focused workspace for running in-depth research and agent tasks, producing reports that trace back to your files.

Offer Bull

Freemium

An AI interview assistant for mock interview practice and live answer suggestions during online job interviews.

An AI inbox assistant that spots recruiter emails, analyses job offers and helps job seekers draft replies.

okkslides

Freemium

An AI slides maker that turns your ideas into professional PowerPoint-style presentations for business use in minutes.

Ollama

Freemium

Ollama lets developers run open AI models and use them with coding agents while keeping their data private.

Ollie AI

Free

Privacy-focused personal AI assistant that manages email, calendar, reminders and daily tasks through simple text messages.

Omago

Freemium

A 24/7 AI customer service agent that replies to website and WhatsApp messages, collects leads and schedules appointments.

Omakase.ai

Free

Omakase Voice AI offers voice-based AI assistance for online stores as an alternative to text chatbots.

Omni Flash

Paid

An AI video generator that turns text, images or clips into cinematic video with synced audio and consistent characters.

Omni Flash AI

Freemium

A free online AI video tool that makes clips from prompts, images or reference clips without installing software.

Omni Video

Freemium

A web platform for turning text and images into cinematic AI video clips using the Omni Video model.

Omni Video AI

Freemium

An AI video and image generator that creates content from text prompts or reference images using an Omni model.

Omni Voice

Freemium

An online AI voice generator for testing scripts with text-to-speech, plus private voice cloning and voice design.

Omnia

Paid

AI visibility software that helps small marketing teams get their brand mentioned in ChatGPT, Perplexity and other AI answers.

OmniBox

Freemium

A Chinese-language AI knowledge assistant that collects content from many sources, organises it and answers questions from it.

OmniHuman Avatars

Free

Turns a single photo and an audio clip into a talking or singing video with realistic lip-sync and expression.

Omnimind AI

Freemium

Omnitable turns spreadsheets into AI engines that automate inbound and outbound sales and marketing processes.

OmniVoice

Freemium

An open source AI voice generator and voice cloning tool that produces natural speech in 646 languages.

Onboarding Agent

Free

An AI assurance platform helping enterprises with AI governance, testing, security and risk management.

OnceSong

Paid

Creates a personalized song gift from your answers about someone you love and the memories you share.

One Click Human

Freemium

A tool that rewrites AI-generated text in one click so it reads more naturally while keeping grammar correct.

One More Shot AI

Freemium

An AI music video generator that creates beat-synced and lip-synced videos from your song without editing skills.

OneSky

Freemium

OneSky offers a multi-agent AI localization hub that translates and quality-checks content across 100+ languages with consistent brand voice.

OneTwo Resume

Freemium

An AI resume builder that rewrites your CV for applicant tracking systems and helps with tailoring and cover letters.

Online Metronome

Free

A free online metronome that keeps a steady beat at any tempo to help musicians practise with accurate timing.

Opal44

Freemium

Explains your Google Analytics 4 and Google Ads data in plain English so you can see what drives real leads.

Open Human

Paid

An open-source, local-first personal AI for Mac, Windows and Linux that manages multiple agents from one place.

Open Operator

Free

Open Operator is a free demo that lets you watch an AI agent browse the web to answer your question.

OpenAdapt

Free

An AI automation service that builds and maintains workflows across your existing business systems, starting with one costly process.

openagent.email

Free

Open-source, self-hosted infrastructure that gives AI agents email inboxes, task threads, approvals and webhooks through MCP and REST.

OpenAGI

Free

Open-source research project exploring how large language models can work together with domain expert models on tasks.