What is Image Compressor & Resizer?
The Image Compressor & Resizer reduces the file size of JPEG, PNG, and WebP images and can resize them to fit a maximum width or height. Useful for preparing images for websites, email attachments, social media uploads, or anywhere you need a smaller file without uploading to a third-party server.
How to Use
Drag and drop an image into the box, or click Browse to pick one.
Choose output format (JPEG, WebP, or PNG) and adjust the quality slider.
Optionally set a maximum width or height, then click Compress Image and download the result.
Why Use This Tool?
Most image compressors online upload your photo to a server, which is slow and not private. This tool uses your browser's Canvas API to compress and resize images entirely on your device. Your image never leaves your computer. WebP usually gives the smallest files at a given visual quality, so try it if you need maximum savings.
FAQ
No. The compression runs entirely in your browser using the Canvas API. Your image never leaves your device.
JPEG is widely supported and great for photos. WebP usually produces 25-35% smaller files at the same quality but is slightly less universal. PNG is lossless - it preserves perfect quality but produces larger files, useful for screenshots and graphics with transparency.
A few common reasons: (1) You picked PNG as the output format for a photo - PNG is lossless and will almost always be larger than a JPEG or WebP photo. Use JPEG or WebP for photos and reserve PNG for screenshots or graphics with flat colours. (2) The source was already well compressed - re-encoding an already-optimised JPEG at quality 80 can add bytes because the encoder spends bits on compression noise. Try a lower quality like 50-60. (3) You left max width and height blank - for large photos, resizing to something like 1600 or 1920 pixels wide usually saves more than tweaking quality alone.
Yes. If you set a maximum width and height, the image is scaled down to fit within those bounds while keeping its original proportions.
The tool accepts images up to 25 MB. Larger files can hit browser memory limits depending on your device.