Resize Image
Resize, compress and convert photos in your browser — no upload, no sign-up, no watermark.
Drop your images here
JPG, PNG, WebP, HEIC, GIF, BMP or AVIF — as many as you like
or paste an image with Ctrl+V
Choose imagesUse this tool to resize an image, compress it or convert its format — entirely inside your browser. Nothing is uploaded: the processing runs on your own device, so a passport photo, a scanned document or a listing photo never travels across the internet. Free, no watermark, no sign-up and no limit on how many images you process.
How to resize an image
- 1
Add your images
Drag photos onto the drop zone, click to browse, or paste one with Ctrl+V. As many as you like — JPG, PNG, WebP, HEIC, GIF, BMP and AVIF are all supported.
- 2
Choose how to resize
Set exact pixel dimensions, scale by a percentage, target an exact file size in KB or MB, or pick a preset such as the 35 × 45 mm passport photo.
- 3
Set format and quality
Keep the original format or convert to JPG, PNG or WebP, then adjust quality and the background colour.
- 4
Download the result
Press resize and download. Processed a batch? Grab them all in one ZIP.
Resize an image to an exact file size (100 KB, 500 KB, 2 MB)
Online forms reject a photo for its weight far more often than for its shape. Rather than nudging a quality slider and re-checking, open the File size tab and type the limit you have been given.
The tool searches for the highest JPEG quality that still fits under your target while holding the pixel dimensions steady wherever possible. Only when the target cannot be reached at the lowest usable quality does it start reducing dimensions too, so you always keep as much detail as the limit allows. A 6 MB phone photo drops under 500 KB in a couple of seconds.
Australian passport and visa photo sizes
The Australian passport photo is 35 × 45 mm, the ICAO standard used across most of the world — 827 × 1063 pixels at 600 dpi, or 413 × 531 pixels at 300 dpi. The background should be plain and light, with a neutral expression and both eyes clearly visible.
For visa and citizenship applications lodged through ImmiAccount, each attached file has a maximum size, and applicants routinely hit it when uploading photos straight off a phone. Use the ImmiAccount preset — it keeps the image at a sensible resolution and caps the file size — or set your own limit in the File size tab.
Because the print preset writes the correct print resolution into the file, a photo lab or home printer reproduces 35 × 45 mm at the true physical size instead of treating it as a 72 dpi screen image.
JPG, PNG or WebP — which should you use?
- JPG is right for photographs and for virtually every government or job-portal upload. It has no transparency, so transparent areas are filled with your chosen background colour.
- PNG is lossless and keeps transparency — the choice for logos, screenshots and graphics with text or hard edges, but far heavier for photographs.
- WebP gives noticeably smaller files than JPG at the same visual quality and suits your own website, though some older software and a few forms still refuse it.
Quality between 75 and 85 is generally indistinguishable from the original while cutting the file size sharply.
Upload sizes for Australian sites
Gumtree and Facebook Marketplace both re-compress whatever you send, so uploading around 1200 px gives a crisper result than a full-resolution photo their servers will squash anyway. realestate.com.au and Domain display landscape images best — 1600 × 1200 px is a safe choice.
For a Seek or LinkedIn profile photo, 800 × 800 px square at quality 85 looks sharp and stays well under 200 KB. And for email, keeping total attachments under about 10 MB clears most corporate mail filters — resize a folder to 1600 px wide and download it as a single ZIP.
Australian document photo specifications
Always check the official source before lodging an application — requirements change.
| Document | Printed size | Digital size | File size | Source |
|---|---|---|---|---|
| Australian passport | 35 × 45 mm | 827 × 1063 px at 600 dpi | — | Australian Passport Office |
| ImmiAccount document upload | — | legible scan or photo | per-file cap applies | Department of Home Affairs |
| Profile / CV photo | — | 800 × 800 px | under 1 MB | Common practice |
Why use this image resizer
- ✓Your images never leave your device. Most free resizers upload your file and hold it on their servers for hours. Here your own browser does the work, so an ID scan is never transmitted at all.
- ✓Exact file-size targeting. Ask for 500 KB and you get 500 KB at the best quality that fits — no guess-and-check.
- ✓One tool instead of four. Resize, compress, convert and batch-process in a single pass.
- ✓Genuinely free and unlimited. No account, no watermark, no daily cap — with no server there is nothing to meter.
- ✓Works offline. Once the page has loaded you can drop your connection and keep going.
- ✓Print-correct document photos. Presets write the right print resolution into the file, so 35 × 45 mm really is 35 × 45 mm on paper.
Frequently asked questions
Are my photos uploaded to a server?
No. Every image is processed inside your browser. Files are read into memory on your own machine and never sent anywhere — disconnect from the internet after the page loads and it still works.
How do I resize an image to exactly 100 KB?
Open the File size tab, enter 100 with the unit on KB, and press resize. The tool finds the highest quality that fits under 100 KB, keeping your pixel dimensions where it can.
What size is an Australian passport photo?
35 × 45 mm, which is 827 × 1063 pixels at 600 dpi or 413 × 531 pixels at 300 dpi, on a plain light background with a neutral expression.
Is it safe to resize a passport photo here?
Yes, and safer than with tools that upload. The processing is local, so your photo is never transmitted or stored on anyone else's server.
Can I convert HEIC photos from my iPhone?
Yes. Drop in a HEIC or HEIF file and it is decoded locally in your browser, then saved as JPG, PNG or WebP.
Can I resize many images at once?
Yes. Add as many as you like, set your options once, then press “Resize all images” and download the set as a single ZIP.
Will resizing reduce quality?
Fewer pixels always means less information, but this tool downscales in stages rather than one jump, which keeps noticeably more detail. At quality 80–85 the result is usually indistinguishable from the original.
