Flip Image Online
Mirror your photos horizontally or vertically. Fast local rendering without quality loss.
How to Flip Images Online Instantly
Flipping (or mirroring) an image is a common design requirement in visual media production, website customization, and photo correction. Unlike rotation, which pivots an image around a central point, flipping mirrors the layout across a central axis. This is split into horizontal flipping (reversing left and right profiles, ideal for correcting mirrored camera selfies) and vertical flipping (inverting top and bottom profiles, creating water reflections or adjusting flipped document scans). Our free online Image Flipper provides an instant interface to perform these reflections.
Correcting Selfie Camera Mirror Effects
Most mobile smartphones default their front-facing camera configurations to mirror photos automatically to match a real-time mirror perspective. However, when the photo is saved, it is often written as mirrored text and backward signs. If you capture a portrait photo containing business logos or text signs, the letters will render backward, ruining readability. By applying a horizontal flip, you mirror the image matrix, restoring letters and logos to their correct orientation without losing pixel density.
The Geometry of Scale Transformation in Canvas
To mirror pixels locally, our JavaScript uses a geometric scale transformation inside the HTML5 canvas element. In a standard rendering context, pixels are drawn starting from coordinate (0,0) down to the bottom-right coordinate. To mirror horizontally, the script translates the canvas coordinate system to the right margin of the image width and applies a scale factor of `scale(-1, 1)`. This tells the rendering context to draw the image pixels from right to left. The vertical mirror uses a translation to the bottom margin and scales `scale(1, -1)`. This client-side approach ensures your photos are processed instantly and safely.
Step-by-Step Instructions
1. Load Your Photo File
Drag and drop your file into the dashed box above, or click inside the container to open your system directory picker to select a JPG, PNG, or WebP photo.
2. Toggle Mirror Triggers
Click the mirror action buttons to test orientation. Click "Flip Horizontal" to swap left and right sides, and click "Flip Vertical" to invert top and bottom edges.
3. Download Your Mirrored Image
Select your target output format (JPEG, WebP, or PNG) and click the black action button: "Apply & Download Image". The mirrored file will download instantly.