Pixel-perfect
Exact dimensions, every time. Lock aspect ratio or override. Visual snap-to common sizes.
Free online image resizer.
Resize images instantly — free, no signup, no watermark. Works right in your browser.
Drop an image to start resizing
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, TIFF. Up to 100 MB. Drop one file or up to 50 for batch.
- Free
- Instant
- No signup
Tools
Every tool runs right in your browser, so results come back in seconds.
Resize
Compress
Convert
All 46 tools
- Image Converter
- JPG to WebP
- WebP to PNG
- JPG to PNG
- SVG to PNG
- HEIC to PNG
- AVIF to JPG
- AVIF to PNG
- PNG to WebP
- PNG to ICO
- JPEG to JPG
- JPG to GIF
- SVG to JPG
- TIFF to JPG
- GIF to JPG
- GIF to PNG
- BMP to JPG
- JFIF to JPG
- RAW to JPG
- CR2 to JPG
- DNG to JPG
- NEF to JPG
- ARW to JPG
- PSD to PNG
- PSD to JPG
- WebP to GIF
- GIF to WebP
- PNG to PDF
- WebP to PDF
- HEIC to PDF
- Images to PDF
- PDF to JPG
- PDF to PNG
- PNG to SVG
- JPG to SVG
- JPG Converter
- PNG Converter
- WebP Converter
- HEIC Converter
- AVIF Converter
- GIF Converter
- SVG Converter
- All converters
Built for the way you actually work
Every tool runs in your browser tab. No server roundtrip, no waiting.
No queue, no waiting
The resize runs right in your browser in milliseconds. Nothing waits in a server queue.
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.
Your files stay on your device
Images are processed right in your browser and never sent to a server. Nothing to delete afterward, nothing for anyone else to see.
Free, forever
No account. No paywall. 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
Drop a file
Drag from your desktop or pick one. The file stays on your device — no server upload step.
Set your size
Pixels, percent, or kilobyte target. Preview updates as you type.
Download
Get the file in your chosen format. Original is untouched.
Resize like you know what you are doing
- Tip 1:
EXIF orientation: photos from phones often have a rotation tag instead of physically rotated pixels. AnyResizer reads the tag, rotates the pixels, and strips the tag — so the resized copy looks the same everywhere, including older Android galleries and email clients.
- Tip 2:
Aspect ratio: locking it scales both axes proportionally. Unlocking it lets you stretch — useful for backgrounds and patterns, terrible for faces. Toggle deliberately.
- Tip 3:
Lossy vs lossless: JPG, WebP, and AVIF discard detail to shrink. PNG keeps everything but stays large. For photos, lossy at 80% quality is usually invisible to the eye and saves 70% on size.
- Tip 4:
Resampling: Lanczos is the slow, beautiful default — sharp edges, no halos. Bicubic is faster and softer. Nearest is for pixel art and screenshots where you want jagged edges preserved.
- Tip 5:
Format coach: if your image has transparency, WebP or PNG. If it's a photo and you want the smallest file, AVIF. If you need universal compatibility (older clients, email previews), stick to JPG.
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 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?
No. AnyResizer needs an internet connection to load the page and its image engine. After that, your images are processed on your device, so a slow connection won't slow down the work.
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. Nothing is sent to our servers. 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.
Does HEIC from my iPhone work?
Yes. HEIC and HEIF files are decoded in your browser using a lazy-loaded WebAssembly decoder — it only downloads the first time you drop a HEIC file. You can resize and convert to JPG, PNG, WebP, or AVIF in one step.
Can I resize many images at once?
Yes. Drop up to 50 files in a single batch, apply one set of settings, and download a ZIP containing every resized output. A rename pattern keeps filenames consistent — for example {name}-{width}x{height}.