Free online image resizer.
Resize images instantly — free, no signup, no watermark. Works offline in your browser, no upload wait.
Tools
Every tool runs instantly in your browser — no upload wait, no server roundtrip.
Image Resizer
Resize, convert, target file size
Open editorResize Image
One image, resized in seconds
Open editorBulk Image Resizer
Resize 50 images at once
Open editorResize to KB
Hit exact file size limit
Open editorPhoto Resizer
Resize photos, HEIC ready, no upload
Open editorResize Image Online
Resize in your browser, nothing uploaded
Open editorResize JPG
Photo-tuned, quality slider, no upload
Open editorResize PNG
Keep transparency, crisp edges
Open editorResize in Pixels
Exact width and height
Open editorResize for Email
Fit Gmail and Outlook limits
Open editorImage Converter
Convert between any image format
Open editorJPG to WebP
Smaller files, same look
Open editorPNG to JPG
Flatten transparency, smaller files
Open editorHEIC to JPG
iPhone photos for everyone
Open editorRotate Image
Fix sideways photos in seconds
Open editorFlip Image
Mirror horizontally or vertically
Open editorBlur Image
Hide faces, plates, or screenshots
Open editorPixelate Image
Mosaic-censor faces, names, numbers
Open editorImage Cropper
Crop to any aspect ratio, batch friendly
Open editorImage Compressor
Shrink files with a quality slider
Open editorCompress JPEG
JPG-only, live size preview
Open editorWebP to JPG
Open WebP anywhere as JPG
Open editorWebP to PNG
Keep transparency, go lossless
Open editorJPG to PNG
Lossless copy for editing
Open editorSVG to PNG
Rasterize vectors at any size
Open editorHEIC to PNG
iPhone photos, lossless PNG
Open editorAVIF to JPG
Open AVIF anywhere as JPG
Open editorAVIF to PNG
Keep transparency, go lossless
Open editorPNG to WebP
Shrink PNG for the web
Open editorBuilt for the way you actually work
Every tool runs in your browser tab. No server roundtrip, no waiting.
Pixel-perfect
Exact dimensions, every time. Lock aspect ratio or override. Visual snap-to common sizes.
Instant — no upload wait
WASM + Canvas APIs run the resize on your device in milliseconds. Nothing waits in a queue. Nothing rides over your network.
Format-aware
JPG, PNG, WebP, HEIC, AVIF. Per-format quality controls. EXIF-aware orientation.
What you get
Instant results
Output appears in a second or two, not after a round trip to someone's server. Slow connection? Doesn't matter.
Works offline after first load
Once the page loads, your connection can drop. The tool keeps working. Great on planes, in cafés, anywhere flaky.
Free, forever
No account. No paywall. No ads. No data sold. Open in an incognito tab if you want.
Designed for real files
Heavy JPEGs, HEIC straight from your phone, transparent PNGs, animated GIFs.
How it works
- 1
Drop a file
Drag from your desktop or pick one. The file stays on your device — no server upload step.
- 2
Set your size
Pixels, percent, or kilobyte target. Preview updates as you type.
- 3
Download
Get the file in your chosen format. Original is untouched.
Common questions
How fast is the resize?
Instant for most files. A 5 MB JPG to 1920×1080 takes under 500 ms on a modern laptop. Because the work runs in your browser using WebAssembly and Canvas APIs, there is no upload step and no server queue to wait in.
Is AnyResizer really free?
Yes. No account, no paywall, no ads, no watermark. The core tools stay free.
What file types are supported?
JPG, PNG, WebP, HEIC, AVIF, and animated GIF. Output formats depend on the tool — most support JPG, PNG, and WebP.
How large a file can I work with?
Up to 50 MB per file in most tools. Browser memory is the only real limit — recent phones and laptops handle 100 MP photos comfortably.
Does it work offline?
After the first page load, yes. Disconnect your network and the tool keeps working. Refresh requires connectivity until we ship the PWA wrapper.
Are my images sent to a server?
No — and that's why it's fast. All processing happens in your browser using WebAssembly and Canvas APIs. There is no upload endpoint on our side. Open the DevTools Network panel before you drop a file and you'll see zero outbound image requests.
Why a browser tool and not a desktop app?
Less friction. Nothing to install. Nothing to update. Works on any device with a modern browser, including phones.