Image Size Adjuster - Set Exact KB or Pixel Size
Resize to exact pixels (e.g. 800x800) or compress to target KB like 100KB, 200KB, 500KB, 1MB. All in browser.
Your files never leave your device — everything runs locally in your browser.
No file added yet.
What this tool does
Set exact pixel dimensions like 800 × 800, 1024 × 768, or custom width/height with aspect ratio lock. Or choose a target file size like 100 KB, 250 KB, 500 KB, 1 MB and the tool will compress to fit.
Everything runs locally in your browser. Images never leave your device. Works on JPG, PNG, WebP, HEIC.
Perfect for forms, portals, websites and social media that require exact image dimensions or file size limits.
How to use the Image Size Adjuster (KB + Pixels) | Step by Step Guide
- Upload your image (JPG, PNG, WebP, HEIC).
- Choose 'By Pixels' to set exact width/height or 'By File Size (KB/MB)' to set target size.
- For pixels: enter dimensions and lock/unlock aspect ratio.
- For size: select target like 100KB or enter custom KB/MB value.
- Click Adjust & Download - save single image or all as ZIP.
Image upload karein, ya to exact pixels set karein (800x800) ya target size set karein (100KB, 500KB). Tool khud adjust karke download dega. Sab aapke device par hota hai.
Features
- Resize by exact pixels or percentage
- Compress to target KB/MB with smart search
- Lock aspect ratio option
- Supports JPG, PNG, WebP, HEIC
- Batch processing with ZIP download
- 100% private - no upload
Tips
- For passport photos use exact dimensions like 600x600 or 800x800.
- For web use 800-1200px width for good balance of quality/size.
- Use JPG output for photos, WebP for smaller size.
Frequently asked questions
Is the image size adjuster free to use?
Yes — Image Size Adjuster has no usage cap, no sign-up and no watermark, and it is not a trial: the page is a static file on https://wafasmart.tech with no billing backend behind it.
Does anything get uploaded when I use image size adjuster?
No. Image Size Adjuster reads your image straight into page memory, works on it locally and hands the result back as a download — there is no upload request to intercept, store or leak, and no log of what you processed.
Can I use it on my phone?
Yes. Image Size Adjuster is mobile-first: one column, big tap targets, and the system keyboard opens with sensible number/text input. On iPhone, Files and the share sheet feed the picker the same way Downloads does on Android.
Can I make image exactly 800x800?
Yes, select 'By Pixels', enter 800 and 800, lock aspect ratio as desired and process.
Can I compress to exactly 100KB?
The tool finds the best quality/settings to get as close to or under your target size as possible.
Related tools — Try more free tools
Your files never leave your device — everything runs locally in your browser.