How do most AI SaaS tools charge (credits vs monthly subscriptions)?

Most modern AI SaaS tools use hybrid pricing: an entry-level monthly subscription that includes a fixed monthly credit quota, paired with pay-as-you-go top-ups for high-volume LLM inference and generation.

Can I find free and open-source AI tools on SaaSearch?

Yes. You can filter listings by pricing model (Free, Freemium, or Paid) and tech stack. Many makers provide 100% free open-source tiers with self-hosting instructions and MIT licenses.

How are MRR and user counts verified for AI startups?

SaaSearch integrates directly with Stripe and Paddle telemetry to verify recurring monthly revenue, growth velocity, and active users, ensuring figures are authentic rather than estimated.

How can AI developers launch their product on SaaSearch?

Founders can submit their AI application for free. Once you add the verified SaaSearch launch badge to your homepage, your listing is published immediately to today's launch leaderboard with zero queue delay.

SaaSearch - The Search Engine for SaaS and AI products

41 products for Open source Tailwind CSS (0.10 seconds)

Pen

https://pen.dev›design & creative›Pen

Pen: An agentic canvas for building bold software. - result 1

Sep 17, 2026 - Pen is an innovative agentic canvas designed for rapidly building and prototyping software. It allows users to import components from any app,... Read more

5.0(1)1upvote

AI Design UI/UX Design Prototyping

1pen

Open Caffeine

https://github.com›developer tools›Open Caffeine

Open Caffeine: Keep your Mac awake - result 2

Jun 1, 2026 - Open Caffeine is a native macOS menu bar app for keeping your Mac awake for a chosen duration. Pick presets, set a custom timer, toggle screen... Read more

5.0(17)164upvotes

Open Source

17github

Dub.co

https://dub.co›marketing & seo›Dub.co

Dub.co: Open-source link management infrastructure for modern teams - result 3

Feb 1, 2026 - Dub.co is the open-source link management platform that helps you build, track, and optimize short links with powerful custom domains and deep... Read more

5.0(2)1upvote

shortlinks analytics open-source

2dub

Cal.com

https://cal.com›productivity›Cal.com

Cal.com: The open source Calendly alternative built for enterprise and indies - result 4

Aug 26, 2026 - Scheduling infrastructure for everyone. Fully customizable, white-labelable, and embeddable appointment scheduling with calendar integrations.... Read more

5.0(1)1upvote

scheduling calendar open-source

1cal

Top launches of the week

Highest upvote velocity and momentum this week

View all weekly launches

NutriFit
AI-powered personalized nutrition, activity & health tracking platform.
5.0(1)·2 upvotes·1 comment
NexySync
Real-Time AI Agent Communication Platform
5.0(1)·1 upvote·1 comment
hmm?
Translate technical jargon into plain English, live as it happens.
5.0(1)·1 upvote·1 comment
Fireworks
Own Your Specialized Intelligence
5.0(1)·1 upvote·1 comment
Resume Builder CV
Supercharge your resume with an AI co-pilot and live ATS score checker.
5.0(2)·1 upvote·2 comments
Epilude Notetaker
Stay in the meeting. Leave with the notes.
5.0(2)·1 upvote·2 comments
Revinho
Know what’s driving your software business
5.0(2)·1 upvote·2 comments
Stivio
AI Image to Video Generator: Turn photos into HD clips.
5.0(1)·1 upvote·1 comment

Hermes Desktop

https://nousresearch.com›developer tools›Hermes Desktop

Hermes Desktop: The agent that grows with you - result 5

Jun 3, 2026 - Nous Research develops world-class open source AI models & harness. Best known for the Hermes series, recognized for strong reasoning, human... Read more

5.0(13)215upvotes$12.7k MRR+5.5% MoM

Open Source

13nousresearch

LLM Gateway

https://llmgateway.io›ai & automation›LLM Gateway

LLM Gateway is an open-source API gateway for Large Language Models (LLMs). It acts as a middleware between your appl... - result 6

May 15, 2026 - LLM Gateway is an open-source API gateway for Large Language Models (LLMs). It acts as a middleware between your applications and various LLM... Read more

5.0(103)824upvotes$231k MRR+57.1% MoM

AI & Automation Micro-SaaS

103llmgateway

Mistral Vibe

https://mistral.ai›developer tools›Mistral Vibe

Mistral Vibe: I agent for long-running, multi-step work and coding - result 7

Jun 1, 2026 - - We’re committed to empower the AI community with open technology. Our open models sets the bar for efficiency, and are available for free,... Read more

5.0(100)155upvotes

Open Source

0mistral

Pen: An agentic canvas for building bold software.

5.0(1)

Pen is an innovative agentic canvas designed for rapidly building and prototyping software. It allows users to import components from any app, integrate with leading AI models like Claude and OpenAI, and leverage AI agents for direct design and illustration. With buttery-smooth WebGL performance, advanced features like shaders, UI libraries, and HTML/CSS/Tailwind export, Pen empowers developers and designers to create complex applications, mockups, and UI elements. It offers collaborative sharing, a built-in browser for importing content, and CLI connectivity for headless design, making it a comprehensive tool for modern software creation.

View listing