Image Resizer Online Free
Professional image scaling with transparency guard and intelligent KB-limit compression.
Drag & Drop or Select Image
Frequently Asked Questions
Why was my image cut off before?
In standard tools, fixed preview containers clip large images. OTechy uses Responsive Canvas Mapping to ensure 100% of your image is visible and processed.
Can I compress a PNG to 10KB?
PNG is lossless and doesn't compress like JPEG. For small sizes with transparency, we recommend selecting WebP format in the dropdown.
Is this tool secure for private photos?
Yes. No images are uploaded to any server. All transformations happen inside your browser's local memory in India.
What is transparency guard?
It prevents the "black background" bug by automatically filling JPEGs with white while keeping PNGs transparent.
Why did the upload button disappear?
To keep the OTechy interface clean, the button vanishes once your image is loaded into the editor memory.
Why does the tool sometimes stop working?
Browser navigation (back/forward) can freeze scripts. We have included an auto-reset logic to fix this without manual refresh.
Can I recover my edited image?
Since all processing is local, once you refresh or close the tab, the image is cleared for your security.
Is there a limit on file resolution?
You can resize high-resolution DSLR photos up to 10,000 pixels wide on modern browsers in Bharat.
What is 'Lanczos' resampling?
It is a mathematical algorithm we use to ensure that reduced-size images remain sharp and clear.
Does it work on iPhone/Android?
Yes, the OTechy resizer is fully optimized for mobile browsers across all Indian networks.
Why was my background turning black?
Standard resizers don't handle alpha channels correctly when converting to JPEG. OTechy uses a Transparency Guard to prevent this.
Can I resize without losing quality?
Yes, we use Lanczos-3 resampling which mathematically ensures your image resizer online free results stay sharp.
Is PNG better than JPEG?
Use PNG if you need a transparent background. Use JPEG if you want a smaller file size for Bharat 5G networks.
Are my photos safe?
Absolutely. No image is uploaded to our servers; all processing happens within your browser memory in India.