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How to export your Withings data

Withings lets you download a full CSV archive of everything its scales, watches and monitors have recorded. Baseline is building the Withings parser next — here's how to grab your file so it's ready.

Can you export this data?

Yes. Every Withings account can download its data as a set of CSV files, split by measurement type (weight, blood pressure, activity, sleep, etc).

Step-by-step

  1. 1Open account.withings.com in a browser and sign in.
  2. 2Click your avatar in the top-right and choose Settings (or Profile → Settings).
  3. 3Select the user whose data you want to export.
  4. 4Click Download my data — Withings prepares a ZIP containing one CSV per measurement type.
  5. 5Save the ZIP or the individual CSVs somewhere you can find them.

What’s in the file

You get several CSV files: weight.csv (weight, fat percentage, muscle mass, bone mass, water percentage), heart_rate.csv, blood_pressure.csv, and activity/sleep summaries. Each row has a timestamp so Baseline can order them correctly.

What Baseline does with it

Once the Withings parser ships, Baseline will use your weight and body-composition history to show a trend view, filter out obvious single-measurement noise and surface how your body metrics move alongside your training. Body-composition percentages are trend indicators, not precise single readings — Baseline treats them accordingly.

Common issues

  • Withings weight CSVs can include multiple readings per day. Baseline uses a rolling median so a single bad reading doesn't skew your trend.
  • Body-fat percentages from smart scales are estimates. Baseline surfaces confidence rather than presenting them as clinical measurements.
  • If you have multiple household members on one scale, make sure you export the right profile — Withings splits data per user.

Privacy note

Body-metric data is personal. Baseline stores your Withings exports inside your private workspace only, and the AI layer sees only aggregated summaries — never raw daily readings.

Frequently asked

Do I need a Withings account to use Baseline?
No. Withings is one supported source among many. If you use a different scale, you can log body metrics in the generic body-metric CSV template Baseline provides.
Can Baseline read data from the Withings API?
Not in the MVP. We're file-upload-first on purpose — no OAuth prompts, no ongoing access. If you want us to keep pulling automatically later, that will be an opt-in.
What about blood pressure?
Blood-pressure CSVs are included in your Withings export and will be readable when the parser ships. Baseline shows them as context — not as clinical advice.

Ready when your file is

Once you have your export, upload it to Baseline and get one joined-up profile across rowing, endurance and body metrics.

Instructions last reviewed against the vendor documentation on 11 August 2026. View the official documentation.