How do I compare images online?

Upload the original and modified images, then choose slider, side-by-side, or blend. Drag the slider to reveal differences along the X axis.

What image formats are supported?

Any format the browser can decode, typically PNG, JPEG, GIF, and WebP. For best results, compare images at the same resolution.

Can I use this as a visual regression tool?

Yes for spot checks. Pair it with your test runner for automation; this page is the fast human review surface when a screenshot test fails.

Are uploaded images stored?

Images stay in memory as data URLs for the session and are not uploaded for the comparison itself.

在线对比图片 — 视觉 Diff 与滑块

How image compare works

Upload two PNG, JPEG, or WebP images. Slider mode peels one version over the other, side-by-side mode lines them up, and blend mode overlays both so mismatched pixels stand out. Zoom and swap help you inspect tight UI details without leaving the page.

需要其他格式？也可以 compare PDF files 或 compare text，无需离开 compare-text.online。

团队为什么使用此工具

Slider, side-by-side, and blend comparison modes
Zoom controls for pixel-level inspection
Swap original and modified in one click
Works with screenshots and design exports
No account required

如何使用

1
Upload both images
Use matching resolutions when possible for the cleanest visual diff.
2
Choose slider, side-by-side, or blend
Slider is best for spotting shifts; blend highlights mismatched pixels quickly.
3
Zoom into regressions
Inspect padding, type, and color issues that automated screenshot tests flagged.

Visual QA and screenshot review

Designers and QA engineers compare images online to verify Figma exports, Storybook stills, and production captures. Pair this page with your test runner: automation catches failures, image compare explains them to humans.

在线对比图片常见场景

UI and design QA

Compare Figma exports or Storybook screenshots against production to catch padding, type, and color regressions.

Visual regression after deploys

Diff before/after captures from Playwright or manual QA when you need a fast human review.

Marketing creative review

Review banner or landing-page image variants before they go live.

在线对比图片常见问题

How do I compare images online?: Upload the original and modified images, then choose slider, side-by-side, or blend. Drag the slider to reveal differences along the X axis.
What image formats are supported?: Any format the browser can decode, typically PNG, JPEG, GIF, and WebP. For best results, compare images at the same resolution.
Can I use this as a visual regression tool?: Yes for spot checks. Pair it with your test runner for automation; this page is the fast human review surface when a screenshot test fails.
Are uploaded images stored?: Images stay in memory as data URLs for the session and are not uploaded for the comparison itself.