Image Compressor & Resizer
Resize and compress images in your browser — by dimensions, percentage, or target size.
How to use Image Compressor & Resizer
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Add your images
Drag and drop one or more photos onto the dropzone, or click to browse. Files up to 50 MB each are welcome, and you can queue a whole batch at once.
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Set your size
Resize by exact width and height (keep the lock on to hold the aspect ratio) or switch to percentage and drag the slider to scale everything down proportionally.
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Pick a format and squeeze the size
Choose WebP, JPEG, PNG, or keep the original format, then nudge the quality slider — or set a target max size in KB and the tool compresses down to fit.
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Process and download
Hit Process to see the original→new size and percent saved for each image, then download the ones you want. Everything happens on your device.
Key features
- Resize by exact pixel dimensions with an optional aspect-ratio lock
- Scale by percentage when you just want everything a bit smaller
- Compress to a target max file size — quality is dialed down to fit automatically
- Export as WebP, JPEG, or PNG, or keep the original format
- Batch as many images as you like and see original→new size with percent saved
- Free, no sign-up, no watermarks, no limits — and nothing is uploaded
About Image Compressor & Resizer
Shrink, scale, and optimize your images entirely on your own device — no upload, no sign-up, no watermark, and no quality caps. Resize by exact dimensions, by percentage, or compress down to a target file size, then export as WebP, JPEG, PNG, or keep the original format. Every photo is decoded, redrawn, and re-encoded with high-quality smoothing right in your browser, so your files stay completely private and never leave your device.
Last updated 22 May 2026.
Frequently asked questions
- Are my images uploaded anywhere?
- No. Every resize and compression runs locally in your browser on the Canvas API, so your photos stay on your device and we never see them.
- What’s the difference between resizing and compressing?
- Resizing changes the pixel dimensions (how wide and tall the image is), while compressing trims the file size by lowering quality. You can do either or both — shrink the dimensions and tune quality in the same pass.
- How does the target max size work?
- Enter a size in KB and, for lossy formats (WebP and JPEG), the tool binary-searches the quality downward until the output fits under your cap. PNG is lossless, so the target size doesn’t apply to it.
- Which formats can I work with?
- You can load PNG, JPG, WebP, GIF, BMP, and more, and export as WebP, JPEG, PNG, or keep the original. Animated GIFs are accepted but only their first frame is processed.
- Will resizing make my image blurry?
- Scaling down uses high-quality smoothing, so reductions stay crisp. Enlarging beyond the original dimensions can look soft, since there’s no extra detail to invent.
- Does it work on my phone?
- Yes. The tool is fully responsive and runs in any modern mobile or desktop browser — there’s nothing to install.