Resize images online
Resize JPG, PNG, and WebP to exact pixels or percentages. 100% client-side processing, no server upload, secure and free.
Drop an image here
or click to select JPG, PNG, or WebP
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How to resize an image
Upload your JPG, PNG, or WebP file using drag and drop or the file picker. Enter the new width and height in pixels, or set a percentage to scale the image proportionally. Lock aspect ratio to avoid stretching faces, logos, or product photos. Click "Resize image" to apply the new dimensions. The resized file downloads immediately to your device.
Resizing runs locally in your browser with no server upload. Whether you are preparing thumbnails, blog images, or marketplace listings, your originals stay on your device and remain secure.
Why choose SnapKit? Our tools are 100% Private, No Server Upload, Instant Browser-Based, with No File Size Limit — plus free ringtone and video makers. Whether you merge PDFs, convert HEIC photos, or trim MP4 clips, your files stay on your device with zero cloud storage.
Why choose SnapKit?
Every tool is built around four promises: privacy, speed, freedom, and accessibility. No cloud pipeline — just your browser and your files.
100% Private — No Server Upload
Files are processed on your device with client-side WebAssembly and Canvas. No bytes are sent to our servers.
Instant Browser-Based speed
Skip slow uploads and downloads. Your CPU and GPU do the work locally for near-instant results.
No File Size Limit — Free forever
No registration walls, no watermarks, and no arbitrary caps. Use ringtone, video, PDF, and image tools freely.
Works on every device
iPhone, Android, Windows, and Mac browsers are all supported with the same private, instant experience.
Frequently asked questions
Can I resize images without losing quality?
Downscaling to smaller dimensions usually keeps photos sharp. Upscaling enlarges pixels and may look soft — start from the highest resolution source available for best results.
Can I resize images by percentage instead of pixels?
Yes. Enter a percentage to scale the image proportionally — for example, 50% halves both width and height while keeping the same aspect ratio.
Is online image resizing free and private?
Yes. The tool is completely free. All processing is 100% client-side with no server upload, so your images never leave your browser.
Is my data safe with this tool?
Yes. All processing runs 100% on your device using client-side WebAssembly, Canvas API, and browser APIs. No bytes from your files are transmitted to our servers — zero server upload, absolute privacy.
Why is the processing speed so fast?
Because your file never leaves your browser. SnapKit uses WebAssembly and Canvas to harness your device CPU and GPU directly, skipping slow network upload and download steps.