openGym

A self-hosted gym and body-weight tracker you actually own.

Plan your week, run guided workouts, log every set and your body weight, on your phone, synced across your devices, behind your own passkey login.

Website · Live demo · Android APK · Self-hosting guide · Roadmap · Changelog

Why openGym

Most workout apps keep your data on their servers, push you towards a subscription, or vanish when the company does. openGym runs on your own box, keeps your data in a folder you control, and is yours to fork. It still behaves like a modern app: installable on the home screen, passkey sign-in, works offline, syncs between your phone and your laptop.

No account on someone else's server, no subscription, no ads, no telemetry. One docker compose up and it's running.

The in-browser demo is the real app with example data, if you want to try it before installing anything.

Features

Planning

• A routine per weekday over a library of over 5,600 exercises with animated demos, searchable and browsable by muscle on a body map. Filter by the equipment you own.
• Four starter plans (Push/Pull/Legs, Upper/Lower, Full Body, 5×5) that load as ordinary, editable routines.
• Move a session to another day without touching the weekly plan. The week starts on Monday or Sunday, your choice.
• Or skip the weekdays altogether: a rotation (A, B, C, A, ...) where the next session is simply the next one you haven't done, however the week went.
• Supersets, warm-up sets, drop sets and rest-pause, timed exercises (planks, hangs, carries), cardio by time and speed, rest time per exercise, planned deloads.
• Your own exercises, with your own photo, GIF or short video. Location data is stripped on the device before upload.

Training

• Guided sessions: today's workout starts itself, weights are pre-filled from last time, a rest timer runs between sets, PRs are detected as you go. On a rest day it tells you when the next session is.
• A quiet workout screen: one menu per exercise, the set number as the set's own menu, card or list view. Switches in Settings bring the old button rows back if you liked them.
• Optional effort column as RIR or RPE, colour-coded, with a plain-language line per level.
• Plate math for barbell, EZ bar, trap bar and Smith machine, worked out from the plates you own.
• Bodyweight exercises know they carry no load: log reps, add a dip belt if you use one.
• Per-side reps for lunges and single-arm work, the screen stays awake while you train, and a rest-timer alert can flash the screen for loud gyms.
• Swipe a set left to delete it (with Undo) or right to copy it. Pyramid sets with their own reps and rest per set, and a scroll wheel for any rest time up to 15 minutes.

Progress