Free Tool Calendar — 14 Weeks

One Free Tool.
Every Monday.

Each tool solves one real problem — completely free, no account needed. New tool drops every Monday through July 2026.

How It Works
Step 1
Pick a tool below. Each one is fully self-contained — click, use it, done.
Step 2
No signup required. Use every free tool without creating an account.
Step 3
Subscribe for drops. New tool every Monday. Get an email the moment it goes live.
Step 4
Upgrade when ready. Each tool cross-sells one SigmaFoundry product that goes deeper.
Live Now — Use Immediately
Week 1 — Apr 2 2026 LIVE
🧾
W-4 Withholding Calculator
Find out in 30 seconds if your federal withholding is set correctly for 2026. See your risk level before April 15.
Calculator
Use Free Tool →
Always Free LIVE
🪐
Free Monthly Transit Reading
Personalized Vedic astrology transit forecast for the current month. Enter birth details, get your reading instantly.
Reading
Get Free Reading →
Coming Soon — Subscribe to Be Notified
Week 2 — Apr 14 2026 COMING
📊
AI Prompt Quality Grader
Paste any prompt. Get scored on clarity, specificity, and context depth. See exactly what to fix and get a rewrite suggestion.
Grader
Drops Apr 14 →
Week 3 — Apr 21 2026 COMING
💼
LinkedIn Headline Analyzer
Enter your headline. Get a score, a rewrite, and the exact keywords that attract recruiters and clients in your field.
Analyzer
Drops Apr 21 →
Week 4 — Apr 28 2026 COMING
📧
Cold Email Score Card
Paste your cold email. Scored on subject line, hook, offer clarity, and CTA strength. Instant rewrite suggestions.
Grader
Drops Apr 28 →
Week 5 — May 5 2026 COMING
🤖
AI Readiness Audit
10 questions. Find out which parts of your business are ready for AI automation and where you're leaving money on the table.
Audit
Drops May 5 →
Week 6 — May 12 2026 COMING
📈
Automation ROI Calculator
Enter your hourly rate and recurring tasks. See exactly how much AI automation saves you per month in dollars.
Calculator
Drops May 12 →
Week 7 — May 19 2026 COMING
✍️
Landing Page Copy Scorer
Paste your above-the-fold copy. Scored on headline clarity, offer specificity, and conversion potential.
Grader
Drops May 19 →
Week 8 — May 26 2026 COMING
🎯
Personal Productivity Score
8-question assessment. Get your productivity baseline and a custom AI tool recommendation to close your biggest gap.
Assessment
Drops May 26 →
Week 9 — Jun 2 2026 COMING
📬
Email Subject Line Grader
Enter any subject line. Instant score on open-rate potential, clarity, and curiosity gap — plus a rewrite.
Grader
Drops Jun 2 →
Week 10 — Jun 9 2026 COMING
💰
Side Hustle Income Projector
Enter your skill, hours/week, target rate. Get a 90-day income projection and the top 3 AI tools to get there faster.
Calculator
Drops Jun 9 →
Week 11 — Jun 16 2026 COMING
🔁
Content Repurposing Planner
Enter one piece of content. Get an instant map — which formats, platforms, and hooks to use for each channel.
Planner
Drops Jun 16 →
Week 12 — Jun 23 2026 COMING
🏷️
AI Business Name Generator
Describe your business in one sentence. Get 10 name options with domain availability and brand strength scores.
Generator
Drops Jun 23 →
Week 13 — Jun 30 2026 COMING
📋
Resume AI Readiness Checker
Paste your resume. Find out how it performs against AI screening tools and get keyword gap recommendations.
Analyzer
Drops Jun 30 →
Week 14 — Jul 7 2026 COMING
📅
Social Media Content Calendar
Enter your niche and goals. Get a 30-day content calendar with topic ideas, post times, and format recs per platform.
Generator
Drops Jul 7 →
Go Deeper — SigmaFoundry Products
$19
Tax Windfall Playbook
OBBBA strategy + W-4 optimizer
$12
ChatGPT Cheat Sheet
33 essential prompts for work
$27
Professional AI Prompt Library
75 prompts across professional use cases
$37
LinkedIn Ghostwriting Toolkit
40 templates, 10 hooks, 30-day system
$37
AI Sales Email Builder
30 complete sequences that convert
$47
AI Landing Page Copy System
Frameworks, 22 templates & 5 examples
Coming Soon
$29
Claude Code Token Economy Playbook
Cut AI costs 60%+ with the SF production model