Your before and after, in one image.
Pick two photos, line them up, add their dates, download the side-by-side. It all happens in your browser: your photos are never uploaded anywhere.
Drag a photo to move it; pinch or scroll to zoom. Same body size on both sides, and the comparison reads at a glance.
Photos
Sample photos: replace them with your own.
Framing
Final image
JPEG, 2160 × 1440, no metadata
Nothing leaves your device.
The image is put together by your browser, on your device: no photo is sent to us or to anyone else. You can even go offline once the page has loaded. The exported image carries no metadata — no location, no phone model.
Make the comparison actually show something
Same pose, same light.
Two photos only compare if nothing else changed: same spot, same lighting, same distance, same clothes.
A few weeks apart, at least.
Day to day, you mostly see water, food and light. Today against one or two months ago: that is where the trend shows.
Framing that doesn’t drift.
Same distance, same camera height, the same relaxed front, side and back poses: that is what makes two dates truly line up.
Next time, let the app do it.
Body Tracker guides you back into the same pose, reminds you when the next photo is due and compares any two dates, side by side or with a slider. Free, no account, and everything stays on your phone.
Frequently asked questions
Are my photos uploaded to a server?
No. The image is drawn by your browser, on your device. No photo is sent to Body Tracker or to any third party.
Is it really free?
Yes, with no account and no limit. The body-tracker.app credit at the bottom of the image can be removed in one click.
What image do I get?
A 2160 × 1440 pixel JPEG: both photos side by side in portrait format, framed the way you set them, with their dates and the number of days between them. Ready to share in a message or on social media.
How do I track my photos over time?
With the Body Tracker app: it keeps your progress photos apart from your gallery, helps you keep the same framing and compares any two dates. Tracking is free and stays on your phone.