In Hevy: Profile → ⚙ Settings → Export & Import Data → Export Workouts. Then upload workout_data.csv here. Re-importing is safe — duplicate sets are skipped.
Diet · MyFitnessPal
Unofficial sync — MFP has no public API and now blocks password logins, so we use your browser session cookie. It's stored encrypted and only used to read your diary totals. This is against MFP's terms and can break if they change their site or Cloudflare blocks the server.
How to get your session cookie
On a desktop browser, log in at myfitnesspal.com.
Open DevTools (F12) → Application (Chrome) or Storage (Firefox) → Cookies → https://www.myfitnesspal.com.
Copy the value of __Secure-next-auth.session-token and paste it below.