Baskin Logic Fitness
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Free · No sign-up · Private

Free fitness tools: 25 paid features, free.

Every tool runs entirely in your browser. Nothing you type is sent anywhere.

Free · No sign-up · Private

The 25 things people pay for in fitness. Free here.

Coaching, adaptive programs, food logging, meal plans, recovery scores and more — the features behind $3–$199/month apps, rebuilt to run in your browser.

Adaptive workout program generatorAn 8-week program built from your goal, days, time and equipment, with progression and a deload. Replaces a paid coach or Fitbod.Workout tracker + progressive overloadLog sets with reps in reserve, get next-set suggestions, a rest timer and a 1RM trend chart.Adaptive TDEE coachFinds your real maintenance calories from your weight trend and intake, then adjusts your target weekly.Food diaryLog meals from a 30-food starter list or your own labels, with calories and macros per day.7-day meal plan builderA full week scaled to your calories, with Everything, Vegetarian or Indian home-style menus and a grocery list.Exercise library with form cuesSearch movements by muscle and equipment, with step-by-step form cues.Follow-along guided workoutsTimed no-equipment sessions with form cues and rest built in.1RM calculatorThree-formula one-rep-max estimate and a percentage chart for planning.Plate + warm-up calculatorExact plates per side and a warm-up ladder, in lb or kg.Running plan builderCouch-to-5K, 10K or Zone 2 base plans, week by week.Achilles return-to-run guideA phased, pain-monitored education guide for returning to running. Not treatment.Habit + streak trackerDaily habits with streaks and a 7-day grid.Body measurement trackerWeight and tape measurements with charts and change since day one.Body-fat estimatorUS Navy tape-measure method with lean mass and waist-to-height ratio.Recovery + readiness checkA 6-question daily readiness score with a sleep and recovery checklist.Heart-rate zone calculatorFive zones from age or resting heart rate, including Zone 2.Weekly coach check-inThe questions a paid coach asks every week, with a next step from your answers.Calorie calculatorFree toolMacro calculatorFree toolProtein calculatorFree toolMeal-prep planner + grocery listFree toolMobility routine builderFree toolHIIT / interval timerFree toolShift hydration plannerFree toolTDEE and BMR calculatorFree tool

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Founder

Built by founder Joshua Baskin. See my rebuild →

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New free tools

Runs in your browser

BMI calculator (adults)

Free adult BMI calculator in US or metric units, with WHO categories, the healthy weight range for your height…

Runs in your browser

TDEE and BMR calculator

Free TDEE and BMR calculator using the Mifflin–St Jeor equation and activity level, with gentle fat-loss and l…

Runs in your browser

Interval timer for HIIT and walk-run

Free interval timer with beeps and vibration: set work, rest, rounds and warm-up for HIIT, circuits or couch-t…

Calorie & TDEE calculator

Your maintenance calories, BMR and gentle cut and gain targets, using the Mifflin–St Jeor equation.

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Macro calculator

Turn your calories into protein, carbs and fat in grams, plus a no-scale hand-portion guide.

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Protein calculator

Your daily protein range by goal, grams per meal, and what that looks like in real food.

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Meal-prep planner + grocery list

Pick days and foods. Get a container plan, a cook order and an automatic grocery list you can print.

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Mobility routine builder

A 5, 10 or 15-minute routine for the areas you choose, with a guided timer. Gentle lower-leg options too.

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Shift hydration planner

Your daily fluid target and drink checkpoints across your work shift, adjusted for exercise and heat.

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Education only. Not medical advice. Confirm with your clinician.