Resize Image Online Free. Change Dimensions in Pixels, or Choose a Preset for Instagram, Facebook, or YouTube.

RepetiGo's free image resizer lets you change the dimensions of any photo or image to whatever size you need. Enter exact pixel dimensions, choose a percentage of the original size, or pick from built-in presets for Instagram, Facebook, and YouTube. No software required. No account needed. Your image is never uploaded to a server - resizing happens entirely in your browser.

The resize image online free tool accepts JPG, PNG, and WEBP files and works on any device with a browser - phone, tablet, laptop, or desktop. The output downloads as WebP or PNG - if you need a JPG for a government portal upload, run the result through the Convert to JPG tool afterward.

Resizing an image changes its dimensions - the width and height, measured in pixels. When you resize an image, you are making it physically larger or smaller. A 4000×3000 pixel photo resized to 400×300 pixels becomes 10 times smaller in each dimension and roughly 100 times smaller in file size, since file size is broadly proportional to the number of pixels.

Resizing is different from cropping (which cuts off parts of the image), compressing (which reduces file size while keeping the same dimensions), and upscaling (which uses AI to intelligently increase image size). These are four separate operations that serve different purposes. The right tool depends on what you need:

Every resize follows the same simple process. No account required, no daily limit.

Click the Upload button or drag and drop your image. Supported formats: JPG/JPEG, PNG, WEBP. There is no fixed file size cap - because everything runs on your own device, a very large image simply takes a little longer to process. This tool works with one image at a time. Upload works on any device - Android phone, iPhone, Windows laptop, Mac, or Chromebook - from your browser, with no app to install.

You have three ways to set your target size:

By Size - enter the width and height in pixels. Enable Lock Aspect Ratio to automatically calculate the other dimension without distorting the image. If you turn Lock Aspect Ratio off and enter dimensions with a different ratio than the original, the image is stretched to fit exactly - there is no padding or white-border option, so leave the lock on unless you specifically want that stretched look.

As Percentage - drag the scale slider from 10% to 200% of the original. Under 100% makes the image smaller with no quality loss. Over 100% stretches the existing pixels rather than adding new detail - for enlarging with genuinely added detail instead, use the AI Image Upscaler at Open AI Image Upscaler.

Social Media - five built-in one-click presets: Instagram Post (1080×1080), Instagram Story (1080×1920), Facebook Post (1200×630), LinkedIn Post (1200×627), and YouTube Thumbnail (1280×720). Selecting one fills in the width and height automatically.

In Export Settings, choose WebP (smaller file, adjustable quality) or PNG (lossless, no quality slider) as your output format, and optionally set a Target File Size in KB - the tool will step down the WebP quality until it fits, when possible.

Click Resize. Processing happens on your own device in under a second for most images. Download the result. The output is always WebP or PNG - if your form or portal specifically requires a JPG (most Indian government portals do), open the result in Convert to JPG at Open Convert to JPG before uploading.

The tool has five built-in one-click presets for social media, listed below. For Indian document photos and every other platform size, enter the width and height manually using the By Size tab and Lock Aspect Ratio - the reference numbers below are commonly cited specs, but government portals do update their requirements from time to time, so always confirm against the current form before submitting.

The honest answer depends on which direction you are resizing:

Resizing DOWN (making an image smaller in pixels) - no quality loss. When you go from 4000×3000 pixels to 400×300 pixels, you are removing most of the pixels, but the remaining pixels are resampled together and the result looks sharp and clear at the new, smaller size.

Resizing UP (making an image larger in pixels) using this tool's As Percentage slider above 100% - causes pixelation. The tool duplicates and interpolates existing pixels to fill the larger canvas rather than inventing new detail, which creates a blurry or softer result the further above 100% you go. This is a mathematical limitation of resizing without AI, not a bug.

For genuine quality-preserving enlargement, use RepetiGo's AI Image Upscaler instead at Open AI Image Upscaler. It sends your image to a trained AI model that predicts and adds realistic new detail, producing a noticeably sharper result than stretching pixels with this resize tool.

Print shop owners regularly need to resize customer photos before printing - a WhatsApp photo may be 1080×1080, but the print order is for a 4R (4×6 inch at 300 DPI = 1200×1800 pixels) photo. Resizing manually for every customer adds minutes to every job.

PrintPilot - RepetiGo's print shop software - can fold correct-dimension resizing into the same automated workflow customers already use to upload documents via QR code, instead of a shop owner resizing every photo by hand before it reaches the print queue.

This tool doesn't have a one-click "Indian Passport" preset - enter the dimensions manually. For the current Passport Seva format, that's commonly cited as 630×810 pixels (35×45mm) with the file under 250 KB in JPEG. Enter those pixel values with Lock Aspect Ratio on, resize, then use Convert to JPG at Open Convert to JPG (since this tool outputs WebP or PNG, not JPG), and finally Compress Image at Open Compress Image if the file is still over the portal's KB limit. Government photo specs do change from time to time, so confirm the exact figure on the form you're submitting.

Enable Lock Aspect Ratio before entering your target dimensions. With it on, entering the width automatically calculates the correct height (and vice versa) to maintain the original proportions, and the entire image is scaled with nothing cut off. If you turn Lock Aspect Ratio off and enter a width and height with a different ratio than the original, the image is stretched to fit exactly - this tool doesn't have a white-border or padding option, so keep the lock on unless you intentionally want a stretched result.

Resize changes the pixel dimensions of the entire image, scaling it up or down. Crop removes the edges, keeping only the selected central area. Compress reduces file size in KB while keeping the same pixel dimensions. They are three separate operations, each with its own RepetiGo tool: Resize Image (this page), Crop Image at Open Crop Image, and Compress Image at Open Compress Image.

This tool has an optional Target File Size (KB) field in Export Settings - set it, and if your output format is WebP, the tool automatically steps down the quality until the file fits your target, where possible. This option isn't available for PNG output, since PNG has no quality setting to adjust. If you need a precise KB target on a JPG specifically, resize here first, then fine-tune with the Compress Image tool at Open Compress Image.

In Canva: open your design, go to File → Resize (the Magic Resize feature), enter your target dimensions, and click Resize. Canva's free tier limits resizing to the current design's dimensions, and Magic Resize for standalone images requires a Canva Pro subscription. For resizing a standalone image file (JPG, PNG, WEBP) without a Canva subscription, RepetiGo's resize tool is simpler - upload the file, enter dimensions, download. No account required, no subscription needed.

The built-in Photos app lets you crop (Edit → Crop icon) but doesn't resize to exact pixel dimensions. For exact pixel dimensions on iPhone, open Safari, go to repetigo.comOpen Resize Image, upload the photo from your Camera Roll, enter your target dimensions, and download - the file saves to your Files app or Photos. This is useful for resizing before uploading directly to a government portal from your phone.

In Photoshop: go to Image → Image Size, enter your target width and height, ensure Constrain Proportions is checked, choose Bicubic (for downsizing) or Bicubic Smoother (for upsizing) from the Resample dropdown, and click OK. In GIMP (free, open-source): go to Image → Scale Image, enter target width and height, set interpolation to Cubic or Sinc for best quality, click Scale Image, then File → Export As to save. For quick resizing without installing software, RepetiGo's browser-based tool does the same core operation with no installation required.

Not on this tool - it processes one image at a time: upload, resize, download, then start over for the next one. If you regularly need to resize many customer photos in a print shop setting, PrintPilot's automated workflow (linked above) handles that at scale; for occasional multi-image needs on this page, repeat the upload-resize-download cycle for each file.

Yes - and more so than most alternatives, because there is no upload at all. RepetiGo's resize tool processes your image entirely inside your browser using your device's own processing power. The file never reaches any RepetiGo server, so there's nothing to intercept in transit and nothing for us to store, because we never receive the image in the first place.