Curated list

Best Freemium Utilities Tools — September 2026

The best freemium utilities tools for makers and builders, hand-picked and kept up to date.

5 tools · Updated September 2026

Concrete Estimator Hub

· Utilities

Concrete calculators for yards, bags, cost, and quote checks.

Freemiumconcrete calculatorcost estimator

Seo Site Auditor

· Utilities

Tom's Site Auditor — Offline website health scanner for Windows. Crawl any site, detect SEO issues, generate portable HTML reports. No cloud, no subscriptions.

@eCoinIncome

Freemiumwebsite auditorseo audit tool

pairUP.chat

· Utilities

Meet New People Through Real-Time Video Conversations

X communityFreemiumtalk to strangersmeet people online

release-gate

· Utilities

Predeployment checks for AI agents

Freemiumpredeploymentai

Coolors

· Utilities

Color palette generator for designers

Freemiumcolor-pickercolor-palette