LeanBody

What it does

LeanBody reads your body fat %, lean mass, and FFMI from four photos and scores you against the CDC's NHANES 2017–20 DXA cohort, so you get an honest percentile, not a guess. It's $5 once: no account, no subscription, no database. Your photos are analyzed and then deleted, and results live only in your browser. It isn't a DEXA replacement. It's built for the monthly check-in, a credible number you can track without a $150 appointment or a scale you don't trust.

Get your body fat percentage, lean mass, and FFMI from four photos. NHANES-benchmarked. $5 a reading, or a series of six for $20. No subscription.

LeanBody reads your body fat percentage, lean mass, and FFMI from four photographs (front and back, flexed and relaxed), scored against the NHANES 2017–20 DXA reference cohort. Women carry more essential fat by design, so a lean, athletic woman often reads around 22%, not 12%. If a body fat number has ever scared you, it was probably normal and healthy the whole time. LeanBody gives you one honest read, kept private, with nothing stored on an account. For a one-off rough check, a free tool is fine. This is for tracking, where the method has to stay fixed or the number is just noise. Estimating body fat from a camera isn’t a gimmick. Peer-reviewed studies, from single smartphone photos to 3D…from leanbody.io

• 
  Bodywhat2015 · bodywhat.com · ▲98

  Estimate your body fat percentage with a single photo

• 
  Real Body FatAug 2026 · realbodyfat.com · ▲1

  Your body fat, in one photo — analyzed once, never stored

• 
  FreeWWW Body Fat CalculatorJul 2026 · freewww.com · ▲8

  Estimate body fat using three trusted calculation methods

• 
  BodyFat AI: Body Fat ScannerDec 2025 · bodyfataiapp.com · ▲10

  Track your body fat in 60 seconds!

• 
  DexaVaultApr 2026 · dexavault.io

  YOUR DEXA SCAN RESULTS, DECODED

• 
  BioStackr Feb 2026 · biostackr.io · ▲8

  Bullshit detector for your supplement stack

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

• 
  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

• 
  Fundraisly▲1,537

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

• 
  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

• 
  Performative-UI – A react component library of design tropes▲1,181

  Hi HN! I was super frustrated at apps like tiktok and wechat preventing me from saving or downloading the animated gifs, so I made a little tool to turn a screen recording into a slack-sized emoji. Hope you get some value from this!

  Life & fun · Jun 2026 · vorpus.github.io

• 
  Upstream▲976

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

• 
  Goldfish▲958

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

• 
  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Search 18 years of Hacker News and chart how any topic, tool, or person trended. Overlay terms to compare their rise and fall across 45M posts and comments.

  Life & fun · Jun 2026 · hackernewstrends.com