CORE TOPIC 13 11 TOOLS

Helpful Tools

Free, client-side calculators, code formatters, and generators built to streamline operations for founders and independent builders.

STATUS Active Suite

INVENTORY 11 Interactive Tools

CADENCE Evergreen Client-Side

FREE FOUNDER SUITE

11 Standalone Operator Tools

Showing 11 Interactive Web Tools

BUSINESS 01 / 11

MRR to ARR Calculator

Converts monthly recurring revenue into annual recurring revenue, and shows the effect of churn on the annualized number.

BUSINESS 02 / 11

Startup Runway Calculator

Calculates how many months of cash a startup has left based on current balance, monthly burn, and expected revenue growth.

BUSINESS 03 / 11

Freelance Rate Calculator

Converts a target annual income into an hourly or project rate, accounting for unbillable time and overhead costs.

BUSINESS 04 / 11

Startup Name Generator

Generates startup name ideas by combining a user's keyword with common prefixes, suffixes, and word patterns, then links out to check domain availability.

BUSINESS 05 / 11

Word Counter and Readability Checker

Counts words, characters, and estimated reading time from pasted text, and scores the text's readability.

BUSINESS 06 / 11

Meta Tag and Open Graph Preview Generator

Lets a user enter a title, description, and image URL, then shows a live preview of how the page will appear in Google search results, on Twitter and X, and on Facebook and LinkedIn.

BUSINESS 07 / 11

Email Subject Line Preview and Length Checker

Shows how an email subject line will display and truncate across desktop Gmail, mobile Gmail, and Outlook, with a live character count.

DEVELOPER 08 / 11

CSS Gradient and Box Shadow Generator

A visual editor for building CSS linear gradients and box shadows, with the generated CSS code shown live and ready to copy.

DEVELOPER 09 / 11

JSON Formatter and Validator

Formats and validates raw JSON, pretty printing it with proper indentation and highlighting syntax errors with a line reference.

BUSINESS 10 / 11

Free Invoice Generator

A form based invoice builder that renders a clean, printable invoice, ready to save as a PDF using the browser print function.

BUSINESS 11 / 11

Startup Equity Split Calculator

Suggests an equity split among co-founders based on weighted contributions such as idea, capital, time commitment, and existing assets brought to the company.

EDITORIAL METHODOLOGY

The 3-Point Validation Crucible

Every idea documented on StartupTrio is passed through an uncompromising triage protocol. If an idea cannot demonstrate evidence of immediate budget allocation, urgent workflow bottlenecks, and accessible gatekeepers, we reject it from the repository.

84% IDEAS DISQUALIFIED

14d AVERAGE AUDIT

100% FOUNDER-VERIFIED

THE TRIAGE FUNNEL

1. Problem Severity (High Pain)

2. Direct Reachability

3. Commercial Intent (Paid)

Raw signals filtered strictly for needle-first bootstrappers

ADJACENT LEARNING TRACKS