Find the right AI tool for the job

Stable Commerce

by Stable Commerce

AI agent platform that builds and fully operates your eCommerce store from a chat conversation.

Best for: Marketing & Sales

Pricing: Freemium

Limitation: Transaction and ad-management fees on top of plans

Stable Diffusion

by Stability AI

Open-weight text-to-image models from Stability AI you can run and customize on your own hardware.

Best for: Image & Design

Pricing: Open Source

Limitation: Requires technical setup and a capable GPU; far less approachable than hosted services

Stable WarpFusion

Open-source Stable Diffusion notebook for turning videos into AI animations.

Best for: Video & Audio

Pricing: Open Source

Limitation: Complex setup with GPU requirements

Stablecog

Open-source AI image generation.

Best for: Image & Design

Pricing: Open Source

Staccato

by Staccato

AI MIDI co-writer that generates editable music stems from text prompts.

Best for: Video & Audio

Pricing: Paid

Limitation: Outputs MIDI only — you still need a DAW and instruments to hear results

Stack AI

by StackAI

Enterprise no-code platform for building secure AI agents and workflows on private company data.

Best for: Automation & Agents

Pricing: Freemium

Limitation: Learning curve for advanced use and occasional performance inconsistencies reported

Stacks

AI-organized bookmark manager and knowledge base.

Best for: Productivity

Pricing: Freemium

Limitation: Smart recommendations quality may vary

StackSpot AI

by Zup Innovation

Enterprise multi-agent platform that builds contextual coding agents wired into a company's docs, APIs and standards.

Best for: StackSpot AI is a multi-agent platform for the software development lifecycle, created by Brazil's Zup Innovation.

Pricing: Freemium

Limitation: Full value requires enterprise setup and curated knowledge sources

Stage5

AI site agent that turns construction crews' WhatsApp chatter into official paperwork.

Best for: Automation & Agents

Pricing: Paid

Limitation: Niche: built specifically for construction workflows

Stagehand

by Browserbase

AI SDK for act, extract and observe on any website via Playwright.

Best for: Coding & Development

Pricing: Open Source

Limitation: Needs an LLM for every step (costs add up)

Stamp

AI email secretary that triages and drafts your inbox.

Best for: Writing & Content

Pricing: Paid

Stampli

by Stampli

AI-powered procure-to-pay platform that automates invoice capture, coding, approvals, and payments on top of your ERP.

Best for: Stampli is an AI-powered procure-to-pay platform that automates accounts payable without replacing a company's ERP.

Pricing: Paid

Limitation: No public pricing — demo-gated sales process

Star By Face

Free AI face recognition that finds which celebrities you look like.

Best for: Free AI face-recognition toy that finds your celebrity look-alikes.

Pricing: Free

Limitation: Entertainment-grade accuracy — results are for fun, not reliable identification

Stark

by Stark

Accessibility toolkit built into design tools: contrast checks, colorblind simulation, and focus-order testing.

Best for: Lifestyle

Pricing: Freemium

Limitation: Focused on visual accessibility; does not audit full pages like web scanners

Starnus

by Starnus Technology B.V.

Autonomous AI sales employee that runs outbound prospecting, outreach, and follow-ups on autopilot.

Best for: Starnus is an AI platform that runs outbound sales end to end for founders and B2B teams.

Pricing: Paid

Limitation: Pricing isn't published on the homepage

StarryAI

by starryai Inc.

AI art generator app with 5 free credits daily.

Best for: Image & Design

Pricing: Freemium

Limitation: Credit limits

StarterBuild

by StarterBuild

AI business report generator for entrepreneurs.

Best for: Business & Data

Pricing: Freemium

Limitation: Casual website presentation may feel unpolished

Startt

by Startt

Builds polished coming-soon landing pages and launch email campaigns in minutes.

Best for: Coding & Development

Pricing: Freemium

Limitation: AI features limited to the Pro plan

Starzero.ai

by Starzero

AI video understanding platform that finds exact moments using natural-language search.

Best for: Video & Audio

Pricing: Freemium

Limitation: Large video libraries needed for best value

StealthGPT

by StealthGPT

Write AI text that bypasses AI detectors

Best for: Writing & Content

Pricing: Freemium

Limitation: Use in academic settings raises integrity concerns

Steel

by Steel AI

Open-source headless browser API purpose-built for AI agents, with session management and observability.

Best for: Steel is an open-source browser API designed specifically for AI agents.

Pricing: Open Source

Limitation: Early-stage company with a smaller team and less enterprise track record

Steerable Motion

by Banodoco

Open-source ComfyUI nodes for steering AI video generation with batches of images.

Best for: Video & Audio

Pricing: Open Source

Limitation: Requires installing ComfyUI, models, and dependent nodes

Stellar

Autonomous AI voice agents for natural, human-like phone conversations.

Best for: Video & Audio

Pricing: Paid

Limitation: Built for businesses; pricing geared to commercial use

Stellary

by Stellary

Project management for your team and your AI agents: shared boards, missions and approvals, exposed through a hosted MCP server.

Best for: Stellary is AI-native project management for teams and AI agents in one workspace.

Pricing: Freemium

Limitation: Open beta — the founder warns you will hit unfinished corners