Image Flipper: Mirror Images Horizontally or Vertically

Mirror a picture without rotating it

An image flipper reverses the direction of a picture. A horizontal flip exchanges left and right; a vertical flip exchanges top and bottom. Neither is the same as rotating through 90 degrees. This guide mirrors the whole canvas in PhotoCraft, then downloads a PNG so you can check the pixels outside the editor. It is a manual editing workflow, not a separate upload-and-convert service.

Our browser check opened an asymmetric 320 × 320 PNG, applied Flip Canvas Horizontal, exported it and compared every decoded pixel with the horizontally mirrored original. The comparison matched. We also exported a vertical flip for the corresponding top-to-bottom check. These small tests establish the operation on that input, not compatibility with every layered file or camera format.

Prepare the editor and a safe copy

Open the PhotoCraft homepage editor and wait for its menus and image canvas, not just the surrounding page. This guide uses the pinned v0.15.1 web build, checked on 24 October 2026. Its menus remain English in every site language. Use a desktop-sized workspace and a small, non-sensitive PNG first; our 320 × 320 sample is a suitable practice input. Keep the original separately.

Choose File → Open inside the application. A browser tab displaying the image alone is not an editable document. Click in the editor before using shortcuts; browser shortcuts can intercept keys. Use the visible application menu when that happens. The PNG import and export tutorial explains the basic file flow.

Flip the whole canvas step by step

1. Open your copy and confirm the active document tab. Use a picture with an obvious left/right landmark, such as an object near one edge. A symmetric logo can look unchanged after a correct flip.
2. Open Image → Image Rotation. Choose Flip Canvas Horizontal for a mirror across the vertical axis. The right side of the original should now be at the left.
3. For an upside-down reflection instead, choose Flip Canvas Vertical. The top should move to the bottom without exchanging left and right. Choose only the operation required for your result.
4. Inspect the whole picture before continuing. Read any text, numbers or directional signs: horizontal mirroring reverses lettering too. This operation changes the entire canvas, so it is unsuitable when only one object should turn around.
5. If the result is wrong, use Edit → Undo while the document remains open. Undo the unwanted flip before trying another direction, so the two operations are not accidentally combined.

Do not pick a 90° or 180° rotation merely because it appears in the same submenu. Rotation moves the picture around its center; a mirror changes its handedness. For example, an arrow pointing right becomes a left-pointing arrow under a horizontal flip, while a 90° rotation points it up or down. Decide which transformation your task needs before applying it.

Download and inspect the mirrored PNG

Choose File → Export → Quick Export as PNG. Wait for the download to complete, then rename the saved file clearly, for example portrait-mirrored.png. The browser may add a number if the original name already exists. Open that actual downloaded file in an image viewer and compare its landmarks with your untouched input.

For our square sample, both input and output are 320 × 320. The top-left output pixel corresponds to the top-right input pixel after a horizontal flip; after a vertical flip it corresponds to the bottom-left input pixel. You do not need a pixel comparator for an ordinary visual task, but this relationship helps distinguish a real mirror from a rotated image or an unchanged old download.

Keep the original in a separate folder. The export is a rendered picture, not an editable layered checkpoint. If the image contains text that must stay readable, this whole-canvas workflow will not satisfy the requirement without further editing. Do not silently treat backwards labels as an acceptable side effect. Agree on the intended result before sharing it.

Image flipper FAQ

Why did the picture appear unchanged?

A symmetrical subject, opening an old download, or viewing a different document tab can hide the result. Compare a distinctive corner and the file's download time. A changed toolbar or menu selection alone does not prove that the exported pixels changed.

Does flipping reduce the image dimensions?

The tested horizontal and vertical flips kept the sample dimensions. That is different from resizing or cropping. Other operations applied before export can still affect size, and this guide does not promise preservation of every metadata field or embedded color profile.

Can I flip just one layer?

This guide verifies the Image menu's whole-canvas commands. It does not establish a selected-layer-only workflow. If you need to preserve a background while mirroring an isolated object, test that separate requirement on a layered copy rather than applying these canvas commands to your only original.

Limits, saving and troubleshooting

The checked workflow uses small PNG images in Chromium, not a benchmark for large photographs, every browser or complex PSDs. Local pixel editing does not mean anonymous or offline browsing: the website also makes hosting and measurement requests. Read the privacy policy rather than treating this guide as a privacy guarantee. No account is needed for this editor workflow.

There is no browser autosave or crash recovery in this pinned build. Download your result before refreshing, changing language or switching renderer. Save a separate working checkpoint if you need to continue editing, and check reopening separately with the PSD guide. If startup fails, use the renderer guide; if export looks stale, check the active document and actual download time before repeating an edit.

Other image tasks

Use the image flipper guide for mirroring, the image combiner guide for a two-layer layout, pixelate image for Mosaic, or the manual image splitter guide for separate cropped files. Each uses the same editor, with a different result to verify.