Compare Photos Online With a Before-After Slider
A before-after slider makes the difference between two photos easy to see. Use it to review an edit or build a portfolio.
A comparison slider shows two photos in the same position, and the viewer drags a line to reveal the before and after versions. Build one with the photo comparison tool.
When a slider helps
Sliders are ideal for showing retouching, color correction, object removal, and design changes. Photography and editing portfolios also feel more convincing with a direct comparison.
- Use two photos with the same angle and crop.
- Keep the lighting from shifting too much.
- Place the main subject where it is easy to compare.
- Label the before and after sides if needed.
Keep the comparison honest
Do not over-edit the before version just to make the result look dramatic. A realistic difference earns more trust. When the slider is ready, download it and check the result on both phone and desktop screens.
Keep the lighting comparable
Take the before and after photos in the same location. If the color shifts because of the light, the slider shows a difference that did not come from editing, which can be misleading. Note the camera settings if needed.
Frequently asked questions
Can the slider be downloaded?
Yes. Download the result for a portfolio or social media.
Do both photos need the same size?
Ideally yes, so the subject stays aligned when the slider moves.
Can I use it in a portfolio?
Yes. A slider makes the editing process easy to understand.
Is the photo uploaded?
No. Everything runs in the browser.