Image Resizer
📦 Image Resizer Source Code $3.99
Get the complete, ready‑to‑deploy HTML file with all styling and logic. This is the exact code powering the demo above — no dependencies, works offline, and 100% client‑side. Supports custom dimensions with aspect ratio locking and multiple output formats. Perfect for preparing images for the web, social media, and responsive design. One‑time purchase, lifetime access.
What Is an Image Resizer?
Web developers, designers, and content creators often need to adjust image dimensions for responsive websites, social media, thumbnails, or email templates. This tool resizes images directly in your browser using the Canvas API, giving you full control over width and height with an optional aspect ratio lock. It preserves image quality and supports JPEG, PNG, and WEBP output formats. All processing stays on your device — no uploads, no privacy concerns.
How to Use
- Upload an image using the file picker — supported formats include JPEG, PNG, WEBP, and more.
- Set the desired width and height in pixels. Enable the lock icon to maintain the original aspect ratio.
- Select the output format — JPEG, PNG, or WEBP.
- Click "Resize" — the preview updates instantly, and you'll see the new dimensions and file size.
- Download the resized image using the Download button.
Frequently Asked Questions
Does the aspect ratio lock preserve image proportions?
Yes. When the lock is active, changing the width automatically updates the height to maintain the original aspect ratio, and vice versa.
Is my image uploaded to a server?
No. All processing happens entirely in your browser using the Canvas API. Your image never leaves your device.
Can I resize to very small or large dimensions?
Yes, you can enter any value between 1 and 10,000 pixels. The tool will resize accordingly, but very extreme sizes may affect image quality or performance.
Disclaimer: This tool performs all operations locally in your browser. No data is stored, transmitted, or logged. You are responsible for ensuring you have the rights to process any images you upload.