Migrate from JEFIT

Export your training history from JEFIT and convert it to openweight format in under a minute.

Step 1: Export from JEFIT

1. Open the JEFIT app
2. Go to Settings → Account
3. Tap Export Data
4. Save the CSV file (e.g., jefit.csv)

TIP

JEFIT exports a multi-section file containing both your workout sessions and exercise logs. The converter handles this composite format automatically.

Step 2: Convert

npx @openweight/cli convert --weight-unit kg jefit.csv -o workouts.json --pretty

Weight unit is required

JEFIT's export doesn't include weight units — it depends on your in-app setting. You mustspecify --weight-unit kg or --weight-unit lb to match what you used in JEFIT.

Step 3: Verify (optional)

npx @openweight/cli validate workouts.json

Or see full conversion stats:

npx @openweight/cli convert --weight-unit kg jefit.csv -o workouts.json --pretty --report

Example output:

--- Conversion Report ---
Source:     jefit
Rows:       1847/1847 converted, 0 skipped
Workouts:   147
Exercises:  26

What Gets Converted

JEFIT field	openweight field	Notes
starttime / starttimie / mydate	date	Prefers Unix timestamp; falls back to date string
total_time	durationSeconds	Seconds; 0 is treated as no duration
ename	exercise.name	Normalized when possible
logs (100x5,100x5)	sets[].weight + sets[].reps	Each weightxreps token becomes a set

JEFIT's Export Format

Unlike Strong and Hevy (which export flat CSV with one row per set), JEFIT exports a multi-section composite file:

### WORKOUT SESSIONS ###
_id,mydate,starttime,starttimie,total_time
1,2024-01-15,1705305000,,3600
###########################

### EXERCISE LOGS ###
belongsession,ename,logs
1,"Barbell Bench Press","100x5,100x5,100x3"
###########################

The converter joins sessions and exercise logs by session ID, unpacks the packed set data, and produces standard openweight workout logs.

Date Resolution

JEFIT exports contain multiple date fields (including a known typo in the column name). The converter uses this fallback chain:

1. starttime — Unix timestamp (preferred)
2. starttimie — typo variant of starttime (used when starttime is empty)
3. mydate — date string fallback (e.g., 2024-01-15)

Bodyweight Exercises

JEFIT records bodyweight exercises (pull-ups, dips, push-ups) with weight=0. The converter treats these as bodyweight — the weight field is omitted, and only reps are recorded.

Exercise Name Normalization

Common JEFIT exercise names are mapped to canonical names:

JEFIT name	openweight name
Barbell Bench Press	Bench Press
Barbell Squat	Squat
Barbell Overhead Press	Overhead Press
Barbell Row	Bent Over Row
Dumbbell Curl	Bicep Curl
Dumbbell Lateral Raise	Lateral Raise
Pull Up	Pull-up
Barbell Hip Thrust	Hip Thrust

Exercises that don't have a known mapping are kept as-is and flagged in the report.

Full CLI Reference

npx @openweight/cli convert <file> [options]

Options:
  -f, --format <format>       Source format (auto-detected from section markers)
  -u, --weight-unit <unit>    Weight unit: kg or lb (required for JEFIT)
  -o, --output <file>         Output file (default: stdout)
  --pretty                    Pretty-print JSON output
  --report                    Print conversion report to stderr

Example Output

A single JEFIT workout converts to:

{
  "date": "2024-01-15T07:30:00Z",
  "durationSeconds": 3600,
  "exercises": [
    {
      "exercise": {
        "name": "Bench Press"
      },
      "sets": [
        {
          "reps": 5,
          "weight": 100,
          "unit": "kg"
        },
        {
          "reps": 5,
          "weight": 100,
          "unit": "kg"
        },
        {
          "reps": 3,
          "weight": 100,
          "unit": "kg"
        }
      ]
    },
    {
      "exercise": {
        "name": "Pull-up"
      },
      "sets": [
        {
          "reps": 10
        },
        {
          "reps": 8
        },
        {
          "reps": 6
        }
      ]
    }
  ]
}

Multiple workouts are output as a JSON array.

Troubleshooting

"Weight unit is required for JEFIT format"

JEFIT's export doesn't include units. Add --weight-unit kg or --weight-unit lb to match your JEFIT app settings.

Exercises show as "unmapped"

This is normal. The converter has mappings for ~80 common exercises. Anything not in the mapping table is kept exactly as it appears in JEFIT. Check the --report output to see which exercises were unmapped.

Some exercises have 0 sets

If JEFIT exported an exercise with an empty logs field, it will be skipped and a warning will appear in the report. This usually means the exercise was added to a session but no sets were actually logged.

Duplicate session IDs

If the export contains duplicate session IDs (rare), the converter uses the first occurrence and warns about duplicates in the report.