Fast. Private. In your browser.

Online Image Flipper – Flip Horizontally & Vertically

Flip images instantly without uploads. Horizontal and vertical flips — 100% private, runs in your browser.

Images never leave your device (no uploads)
Flip images in seconds
2+
Drag & drop multiple images here
or click to browse files
PNG, JPG, WebP up to ~5MB each • Select multiple files
Tip: Select multiple images to process them individually or all at once

Why Choose SnapResizer?

Mirror Effect

Instantly flip images horizontally or vertically to correct selfie angles or create symmetry.

90° Rotation

Fix sideways or upside-down photos with quick 90-degree rotation buttons.

Quality Preserved

Unlike simple viewers, our engine preserves every pixel of detail during rotation.

Fast Export

Export your flipped or rotated images instantly in JPG, PNG, or WebP formats.

Common Use Cases for Image Flipping

Image flipping and rotation are essential tools for fixing orientation issues and creating better compositions.

Fix Phone Orientation

Correct images taken in the wrong orientation. Many phones capture photos upside down or sideways, especially in portrait mode.

Create Mirror Effects

Flip images horizontally to create mirror effects for design projects, social media content, or artistic compositions.

Text Overlay Preparation

Flip images to make text overlays more readable or to create better visual balance in designs and marketing materials.

Design Symmetry

Create symmetrical designs by flipping elements. Useful for logos, patterns, and graphic design projects.

Photo Correction

Fix photos that were scanned or imported incorrectly. Rotate and flip to restore proper orientation.

Social Media Content

Create variations of images for social media by flipping them. Different orientations can improve engagement and visual interest.

Understanding Image Orientation and Rotation

Horizontal vs Vertical Flip

Horizontal Flip (Mirror):

Flips the image along the vertical axis (y-axis). This is technically a reflection. It is commonly used to correct "selfie" mirror effects or to reposition a subject's gaze in a composition to follow the "Rule of Thirds."

Vertical Flip:

Flips the image along the horizontal axis (x-axis). This is often used for creating water reflections or correcting ceiling-mounted camera orientations.

Technical Deep Dive: The Physics of Image Flipping

Image flipping is a linear transformation performed on the pixel matrix. Unlike rotation, which involves trigonometry (sine and cosine functions), flipping simply involves re-indexing the array.

// For a Horizontal Flip: new_x = (image_width - 1) - original_x; new_y = original_y;

SnapResizer performs this operation entirely via the HTML5 Canvas API and the CSS transform property for real-time previewing. This ensures zero latency and absolute privacy, as the raw pixel data never crosses our server boundary.

Visual Orientation Compliance Table

TransformationPixel LogicBest For
Flip HorizontalX becomes -XFixing backwards text / Selfies
Flip VerticalY becomes -YCeiling cam footage / Mirroring
Rotate 90° CW(x,y) → (y, -x)Portrait to Landscape fix
Rotate 180°(x,y) → (-x, -y)Inverted mount cameras

Frequently Asked Questions

What Users Say

Sarah Mitchell
Senior UI/UX Designer

"SnapResizer has become an essential tool in my design workflow. The batch processing saves me hours each week, and the quality preservation is outstanding. Client projects that used to take hours now take minutes."

James Chen
E-commerce Manager

"We process hundreds of product images daily. SnapResizer's consistent output and format conversion have reduced our image processing time by 70%. The team loves how intuitive it is."

Emily Rodriguez
Social Media Director

"The social media presets are a game-changer. We maintain perfect dimensions across all platforms without the usual back-and-forth. The privacy features give us peace of mind with client content."

How it works

Upload multiple images
Drag and drop multiple images or select them from your files. Process one by one or batch process all at once.
Choose flip type
Select horizontal or vertical flip and preview changes instantly.
Export & download
Download individual images or get all processed images in one go.