Image Resizer

Resize any image to exact dimensions or a percentage — free and browser-only.

image resize dimensions
Free Client-Side Private

🖼️

Drop an image here or

JPEG, PNG, WEBP supported. Files never leave your browser.

🔒 This tool runs entirely in your browser — your files are never uploaded to any server.

Image Resizer is a free, browser-based tool that lets you resize any image to an exact width and height, or scale it by a percentage — no upload, no signup, no waiting. All processing happens locally in your browser, so your files stay completely private.

Tool interface

  • Drag-and-drop or browse upload area
  • By Dimensions mode — set exact Width and Height in pixels
  • Aspect Ratio lock — keep proportions when changing one dimension
  • By Percentage mode — scale from 10% to 200% with a slider
  • Live output size preview showing the resulting dimensions
  • Format selector: JPEG, PNG, WEBP
  • Quality slider for JPEG and WEBP output (1–100%)
  • Resize & Download button to export instantly

Tool description

This free online image resizer helps you change the size of photos, social media images, thumbnails, avatars, and product shots without any image editor. You can resize to exact pixel dimensions with the aspect ratio locked, or enter custom values independently. Alternatively, scale the image proportionally by percentage — ideal for batch-style resizing workflows. Everything runs in your browser; nothing is ever sent to a server.

How to use

  1. Upload an image by dragging it into the drop zone or clicking 'Browse'.
  2. Choose 'By Dimensions' to enter a specific Width or Height in pixels, or 'By Percentage' to scale by a factor.
  3. In Dimensions mode, the Aspect Ratio lock is on by default — entering one value adjusts the other automatically.
  4. Select your preferred Format (JPEG, PNG, or WEBP) and adjust quality if needed.
  5. Click Resize & Download — the resized image saves instantly.
  6. Click 'Reset' to start over with a new image.

FAQ

Does Image Resizer upload my file?

No. Everything runs in your browser. Your image is never sent to any server.

Which formats are supported?

You can upload and export JPEG, PNG, and WEBP files.

Can I resize without keeping the aspect ratio?

Yes. Click the lock icon between the Width and Height fields to unlock proportions and enter any values independently.

Why is the quality slider hidden for PNG?

PNG is a lossless format, so quality settings do not apply. The slider is only visible for JPEG and WEBP.

Is this tool free to use?

Yes. Image Resizer is completely free and requires no account or signup.

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