Image Toolbox

Local browser processing

Batch Image Resizer with Social Media Presets

Resize multiple JPG, PNG, and WebP images online in your browser. Use Instagram, TikTok, YouTube, and Pinterest presets or enter custom dimensions.

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How to use this tool

  1. Upload one or more JPG, PNG, or WebP images.
  2. Choose a social media preset or enter custom width and height.
  3. With Keep ratio enabled, images keep their original proportions. To make every image exactly the preset size, turn off Keep ratio.
  4. Process and download individual resized images or the full batch as a ZIP.

Best use cases

  • Batch resize product photos, gallery images, and listing photos to a consistent size.
  • Resize images for Instagram posts and stories, TikTok covers, YouTube thumbnails, and Pinterest pins.
  • Create smaller dimensions to reduce file weight and improve page speed.
  • Use exact preset sizes or custom dimensions when a platform requires fixed image dimensions.

Supported formats

  • Input: PNG, JPG/JPEG, and WebP.
  • Output: keep original format, PNG, JPG, or WebP.
  • Batch output: download individual resized images or export all results as a ZIP.

Privacy and local processing

  • Resizing is rendered locally with Canvas in your browser.
  • Images are not uploaded to a server for standard resize processing.
  • Batch files are kept only in browser memory until downloaded.

Practical guidance

Image resizing changes the pixel dimensions of a file. It is useful when a photo is visually correct but too large, when a platform requires a fixed size, or when a set of images needs consistent dimensions. This resizer is built for predictable width and height changes rather than complex retouching.

How to Use

  1. Upload an image or a group of images.
  2. Enter the target width and height.
  3. Keep aspect ratio when distortion would be a problem, or set exact dimensions for strict requirements.
  4. Process the image and download the resized output.

Features

  • Direct width and height controls.
  • Batch resizing for repeated production work.
  • Canvas-based local output generation.
  • Useful for web images, thumbnails, forms, avatars, and documentation.
  • Works alongside compression when both dimensions and file size matter.

Use Cases

  • Preparing multiple product photos at one size.
  • Making social media assets with consistent dimensions.
  • Reducing oversized camera photos before upload.
  • Creating smaller images for documentation and support articles.

Privacy and local processing

For this tool, ordinary image processing happens in the browser using front-end APIs. The file is loaded into the current page, processed in memory, and made available as a download. Your generated result is not permanent unless you download it, and refreshing the page clears the working state.

Related tools and guides

Compress ImageReduce file size after resizing. Crop ImageTrim composition before changing dimensions. Instagram sizing guidePick sizes for feed, stories, and covers.

Additional FAQ

Does resizing reduce file size?

Usually yes, because fewer pixels are stored, but final size also depends on output format and compression settings.

Will exact width and height stretch the image?

If the target ratio is different from the original ratio, exact resizing can stretch the image. Crop first when composition matters.

Can I use this before compression?

Yes. Resize first when the image is physically too large, then compress if the file is still heavier than needed.

FAQ

Which social media presets are included?

The resize presets include Instagram Post 1080x1080, Instagram Story 1080x1920, TikTok Cover 1080x1920, YouTube Thumbnail 1280x720, and Pinterest Pin 1000x1500.

Can I resize multiple images at once?

Yes. Upload multiple supported JPG, PNG, or WebP images, enter one set of dimensions, process the batch, and download the results individually or as a ZIP file.

How do I resize all images to the exact same size?

Turn off Keep ratio, enter the target width and height, then process the batch. With Keep ratio enabled, each image keeps its original proportions.

Can I keep the aspect ratio?

Yes. Keep ratio is enabled by default. The tool adjusts the other dimension based on each image's original proportions.

Will resizing change file size?

Usually yes. Smaller dimensions often reduce file size, but the final size also depends on output format.

Are images uploaded while resizing?

No. Resizing runs locally in your browser.