AI Tools Directory

Find the right AI tool for the job

Search 4,977 AI tools across 12 categories — compare what each tool does, what it costs, and who it is for. Every listing links to the official website.

4,977 tools 2,982 free or freemium 402 open source

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4,977 tools

Routine

AI work hub that unifies tasks, calendar and notes, with voice capture, AI agents and meeting notes.

Best for: Productivity

Pricing: Freemium

Limitation: Integration ecosystem is narrower than Akiflow or Motion — more manual entry for complex workflows

Rows

AI-powered spreadsheet that pulls live business data, analyzes it in plain language and builds shareable reports.

Best for: Rows is an AI-native spreadsheet for teams that want analysis and reporting without BI dashboards or SQL.

Pricing: Freemium

Limitation: Cloud-only product with no offline app

RowSpeak

Chat-based AI analyst for Excel: upload a spreadsheet, ask in plain English.

Best for: RowSpeak is a conversational AI agent for Excel work.

Pricing: Freemium

Limitation: Web-only chat; not embedded inside Excel itself

Ruby UTCP

Official Ruby implementation of UTCP, the lightweight open standard for agent tool calling.

Best for: Coding & Development

Pricing: Open Source

Limitation: Narrower ecosystem than MCP for now

Ruflo

Multi-agent orchestration harness that turns Claude Code into a 100-agent swarm.

Best for: Automation & Agents

Pricing: Open Source

Limitation: Tightly coupled to Claude Code

Rumi by Chronus

by Chronus

AI coaching platform for workforces — Rumi Coach gives employees on-demand AI coaching starting with voice/text Roleplays for high-stakes conversations (30 ready-made scenarios, readiness level after each attempt), paired with Rumi Mentor's AI-matched human mentoring in one platform

Best for: HR and L&D teams who want scalable AI coaching plus human mentoring for their workforce

Limitation: No public price — enterprise product, pricing needs a sales conversation

RunComfy

by RunComfy

Cloud ComfyUI and generative model platform on GPU.

Best for: Image & Design

Pricing: Freemium

Limitation: Credit-based pricing - costs scale with usage

RunLLM

by RunLLM

AI SRE for mission-critical systems with transparent, evidence-backed investigations.

Best for: Coding & Development

Pricing: Freemium

Limitation: No public pricing information

Runner AI

by Adaptive Machines, Inc.

Agentic commerce platform where AI agents run your online business.

Best for: Marketing & Sales

Pricing: Freemium

Limitation: Best suited to ecommerce founders

Runner H

by H Company

H Company's autonomous AI agent that executes complex multi-step online tasks — emails, forms, job applications — by driving websites in real time.

Best for: Runner H is the flagship autonomous agent platform from H Company, a European AI lab founded in 2022 and backed by major funding.

Pricing: Freemium

Limitation: Relatively new product with a still-maturing ecosystem

RunPod

by RunPod

The AI developer cloud: serverless GPU endpoints, pods, and clusters with sub-200ms cold starts.

Best for: Coding & Development

Pricing: Freemium

Limitation: Spot pricing can be interrupted for pods

Runsight

Open-source, self-hosted YAML-first workflow engine for AI agents.

Best for: Automation & Agents

Pricing: Open Source

Limitation: Self-hosted setup required (uvx or Docker)

Runware

by Runware

Ultra-fast AI inference API for image, video, audio, and 3D generation.

Best for: Coding & Development

Pricing: Paid

Limitation: Developer-focused; no casual UI

Runway

by Runway

Cloud-based AI creative suite for generating and editing video, images and audio, powered by its own Gen video models.

Best for: Runway is an AI creative platform from the company Runway, built on its own foundation video models (Gen-4, Gen-4.5).

Pricing: Freemium

Limitation: Credit-based pricing can burn through quickly on high-end models (Gen-4.5 uses 12 credits/second)

Rystic

by Rystic

Local, stateful simulators of the APIs your agent depends on (Slack, GitHub, Stripe, PayPal, Okta, Linear, Kalshi and more) — validated against the live API before every release.

Best for: Developers testing AI agents against third-party APIs without rate limits or real money moving

Pricing: Freemium

Limitation: Free and Pro need an account and a network connection for billing — only Enterprise runs offline

Rythmex

AI speech-to-text platform that transcribes audio and video in 140+ languages with an editor and API.

Best for: Video & Audio

Pricing: Freemium

Limitation: Human-mode transcription is priced per hour, costly for heavy use

Rytr

by Rytr

AI writing assistant with 8M+ users, from $7.50/month unlimited.

Best for: Writing & Content

Pricing: Freemium

Limitation: Output quality behind top models

Sabato AI

by Sabato AI

Managed voice AI agents for e-commerce stores that answer calls about orders, returns, and pre-sales using live catalog data.

Best for: Sabato AI is a fully managed voice AI platform for e-commerce brands.

Pricing: Paid

Limitation: Usage pricing can scale steeply for high call volumes

SafestClaw

OpenClaw alternative that works with no LLM, no API bills, and minimal prompt-injection risk.

Best for: SafestClaw reimagines the personal AI assistant without depending on a language model.

Pricing: Open Source

Limitation: No free-form chat like LLM assistants offer