IMG
Image Compressor & Resizer
Compress and resize images online without losing quality
Drop an image here or browse
JPEG, PNG, WebP
What is Image Compressor & Resizer?
Compress and resize images directly in your browser with full control over quality and dimensions. Upload any JPEG, PNG, or WebP image and adjust the output size, quality level, and format. The tool shows a live comparison of original vs compressed file size so you can find the perfect balance between quality and file size. Everything runs client-side — your images are never uploaded to any server.
How to Use Image Compressor & Resizer
- 1Upload an image by clicking the upload area or dragging and dropping a file
- 2Adjust the dimensions (width and height) — enable 'Lock aspect ratio' to scale proportionally
- 3Set the quality level using the slider (lower = smaller file, higher = better quality)
- 4Choose your output format (JPEG, PNG, or WebP) and click 'Download' to save
Frequently Asked Questions
The tool uses the HTML5 Canvas API to decode your image, optionally resize it, and re-encode it at a lower quality setting. For JPEG and WebP formats, reducing quality removes fine detail the human eye barely notices, often cutting file size by 50-80% with minimal visible difference.
You can upload JPEG, PNG, and WebP images. The output can be saved as JPEG (best compression for photos), PNG (lossless, best for graphics with transparency), or WebP (modern format with excellent compression and quality).
No. All compression and resizing happens entirely in your browser using JavaScript and the Canvas API. Your images never leave your device, making this tool completely safe for sensitive or private photos.
For most photos, a quality of 70-80% provides an excellent balance between file size and visual quality. For web thumbnails, 60% is usually sufficient. For print or high-quality archives, use 90% or above.
Related Tools
IMG
Image to Base64
Convert images to Base64 encoded strings for embedding in code
{ }
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting
B64
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings instantly
%20
URL Encoder/Decoder
Encode or decode URL components for safe web usage