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Dev.to
6/28/2026
Why every fitness app makes TDEE confusing (and my free fix)

Why every fitness app makes TDEE confusing (and my free fix)

Short summary

A developer built FreeTDEE.com, a free TDEE calculator using the Mifflin-St Jeor formula, without paywalls or email signups. Data stays entirely in-browser via localStorage with no server tracking. Built with Next.js and Cloudflare Pages in ~3 hours using AI, it offers a privacy-first alternative to fitness apps requiring registration.

  • •Free TDEE calculator with no email signup or premium plan required
  • •Data stays in-browser using localStorage; no server-side tracking
  • •Built with Next.js and Cloudflare Pages using AI

Generated with AI, which can make mistakes.

#ai-tools#product-launch
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