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Free · Browser-based · No sign-up

Tools for SaaS Founders

Validate ideas, model your metrics, design Nuxt UI themes, and stay focused — all in your browser, privacy-first.
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Featured

Nuxt UI Theme Builder

Design your perfect Nuxt UI v4 theme with a real-time visual editor. Pick colors with OKLCH precision, tweak component variants, preview across 29 components, then export to app.config.ts or CSS variables.
  • OKLCH Color Editor
    25 color families with perceptual uniformity — no washed-out shades.
  • 29 Components
    Live preview across Button, Card, Table, Form, Badge, and more.
  • 4 Preset Themes
    Start from a curated theme and customize from there.
  • Multiple Export Formats
    Export to app.config, CSS variables, or Nuxt config — copy and paste.
Open Theme Builder
SaaS Toolkit · Free

Validate, Plan, Build & Grow

30+ tools structured around the SaaS founder journey. Each tool runs in your browser with no sign-up required — all data stays local.
Browse all SaaS tools
Free version — data stays in your browser
These tools use IndexedDB for local storage. The SaaS Toolkit adds cross-tool linking, project management, multi-device sync, and team collaboration.
Open SaaS Toolkit
Validate
Plan
Build
Grow
Reference

Customer Interviews

Validate

Guide and track customer interviews to validate your problem

Idea Scorecard

Validate

Score and evaluate your SaaS idea across key criteria

TAM / SAM / SOM Calculator

Validate

Calculate your total, serviceable, and obtainable market sizes

MRR Forecaster

Plan

Project monthly recurring revenue based on growth assumptions

Break-Even Calculator

Grow

Calculate when your SaaS reaches profitability and break-even

Churn Rate Calculator

Plan

Calculate logo and revenue churn rates for your SaaS

Productivity & Generators

More Free Tools

Standalone tools that don't require a SaaS idea — stay focused, generate assets, and have a laugh.
  • Pomodoro Focus Timer
    Full-featured Pomodoro timer with daily priorities, session tracking, and streaks.
  • QR Code Generator
    Create custom QR codes with logos, gradients, and styling. Export PNG, SVG, or WebP.
  • Programming Roast Generator
    Hilarious roasts for any programming language with adjustable intensity.
Pomodoro TimerQR Code Generator

30+ tools, all free

Every tool runs in your browser. No account needed, no data sent to servers.
Browse All ToolsSaaS Glossary