How do I resize an image to exact pixels?

Add your image, choose By pixels, type the exact width and height (for example 800 and 600), and click Resize all. If you want to keep the original proportions, leave Lock aspect ratio on and only edit one side; the other side updates for you.

Can I resize an image to a specific KB size?

Yes. Set the pixel size you need, tick Also compress to target KB, type the KB value (for example 20 for a signature or 100 for a photo), and click Resize all. The resizer changes the dimensions first, then the compressor iterates the encoder to land at or under your KB target when possible.

What are the passport photo and signature sizes for online forms?

Many Indian and international government or exam forms ask for a passport photo at 413x531 pixels (roughly 3.5x4.5 cm at 300 DPI) and a signature at 140x60 pixels. Both are one-click presets in this tool. Combine the pixel preset with the Also compress to target KB option to hit strict rules like photo under 100 KB or signature under 20 KB.

Does resizing reduce image quality?

Making an image smaller (downscaling) barely reduces perceived quality if done well. This tool downscales in steps (halving each pass) and uses high quality smoothing so edges and text stay sharp. Enlarging (upscaling) cannot invent detail that is not in the original, so an enlarged image will look softer than the source.

Can I enlarge an image?

Yes, but honestly: enlarging never adds real detail. If you enter a size larger than the original, the tool shows a warning and still produces the file. Expect a softer result. For small upscales (up to about 1.5x) most viewers will not notice.

Is this image resizer free?

Yes. No signup, no watermark, no email wall, and no daily limit. Resize as many images as your browser can hold in memory.

Are my images uploaded to a server?

No. Decoding, resizing, and re-encoding all run inside your browser tab. Your originals and the resized files are never uploaded, stored, or seen by us. You can disconnect from the internet after the page loads and it still works.

Can I resize many images at once?

Yes. Drop a whole folder of images, apply the same pixel or percent target to all of them in one pass, and download every result together as a single ZIP archive named resized-images.zip.

What image formats are supported?

JPG (JPEG), PNG, and WebP. Each file keeps its original format on output, so a JPG stays a JPG, a PNG stays a PNG, and a WebP stays a WebP.

Is transparency kept when I resize a PNG?

Yes. PNG (and WebP) outputs preserve the alpha channel, so transparent backgrounds stay transparent after resize. JPG has no alpha, so any transparent pixels in a JPG output are drawn on a white background.

Resize images online, free

Change JPG, PNG, and WebP dimensions by pixels or percent, in your browser.

or drop JPG, PNG, or WebP images here

Your files never leave your device.

Found a bug or need help? Email hello@freepdfhub.in

Resize images online, free

Resize an image to fit a form, a website hero, a WhatsApp share, a job portal upload, or a school exam application. This free image resizer changes the width and height of JPG, PNG, and WebP files right inside your browser tab. Enter exact pixels, drop a percent slider, or pick a one-click preset for passport photo, signature, HD, or Full HD. Combine the pixel target with a KB target when a form says "photo under 100 KB at 413 by 531 pixels" and hit both requirements in a single pass.

Everything runs client-side. Your originals and the resized results never leave your device, so you can change image dimensions for a passport form, an ID upload, or a private document without handing anything to a stranger's server.

How to resize an image

Open the Resize Image tool, no signup needed.
Drag and drop your JPG, PNG, or WebP images, or click to select them.
Choose By pixels and enter width and height (leave Lock aspect ratio on to keep the original proportions), or choose By percent and pick 25, 50, or 75 percent.
Click Resize all, then download each image or grab them as a single ZIP.

Resize an image to exact pixels for online forms

Government portals, exam applications, banking KYC uploads, and job sites almost always ask for a specific pixel size. The two most common in India are a passport photo at 413 by 531 pixels (about 3.5 by 4.5 cm at 300 DPI) and a signature at 140 by 60 pixels. Other frequent requirements are 200 by 230, 150 by 200, and thumbnail sizes for school and college portals. Enter the numbers in the width and height fields, or pick a preset chip, and the resizer produces an image at that exact size. Turn Lock aspect ratio off when the target is not the same aspect as your source so the output matches the form's box exactly.

Resize to a target file size in KB

Many forms are strict about file size on top of pixel size, for example "photo under 100 KB" or "signature under 20 KB". Tick Also compress to target KB, enter the KB value, and the tool first resizes to the pixel target and then iterates the JPG or WebP encoder until the file lands at or under your KB goal when possible. This chains resize plus compress into a single click so you never have to bounce between two tools. For very small targets, prefer a JPG output; PNG is lossless and shrinks less.

Resize without losing quality

Downscaling is friendly to quality: this resizer halves the image in steps and uses high quality smoothing, so text stays legible and edges stay sharp even for large reductions. That is the honest ceiling. Enlarging cannot add detail that is not in the original file, so an image blown up beyond its source dimensions will look softer no matter which tool you use. If you must enlarge, small factors (up to about 1.5x) usually look fine; anything more will show softness. This tool never upscales silently: if the target is larger than the original, a yellow warning tells you so, then respects your choice.

Resize JPG, PNG, and WebP

Each file keeps its original format on output, which matters for transparency and file size. PNG and WebP preserve the alpha channel, so logos, screenshots, and product cutouts stay transparent after resize. JPG has no alpha, so any transparent pixels in a JPG output are drawn on a white background. If you need a smaller upload after resizing, JPG usually shrinks more than PNG for the same visual quality; try our Compress Image tool as a follow-up when you want more control over the KB size.

Resize images in bulk

Batch resize is built in. Drop a whole folder of images, pick one pixel target or one percent value, and every file is processed in one pass. Download each result individually, or grab all of them together as a single ZIP archive named resized-images.zip. There is no per-file cap and no daily limit because the work happens on your own machine. For each file the tool shows the original dimensions and size, then the new dimensions and size, so you can see exactly what changed.

Your images never leave your device

Most online image resizers upload every photo to a stranger's server, hold it for hours or days, and log the filename. This tool does the opposite. Decoding, resizing, and re-encoding all happen inside your browser tab, powered by the standard Canvas API. Your files, filenames, and any embedded EXIF data stay on your device. Turn off Wi-Fi after the page loads and the resizer still works, which is handy on planes or in areas with a weak signal.

Works on Windows, Mac, Android, and iPhone

Because the resizer is a web page, it runs anywhere a modern browser runs: Windows 10, Windows 11, macOS, Chromebook, Linux, Android, iPhone, and iPad. EXIF rotation is honored, so a photo taken sideways on an iPhone comes out upright instead of tipped over. There is nothing to install, update, or uninstall.

Frequently asked questions

How do I resize an image to exact pixels?: Add your image, choose By pixels, type the exact width and height (for example 800 and 600), and click Resize all. If you want to keep the original proportions, leave Lock aspect ratio on and only edit one side; the other side updates for you.
Can I resize an image to a specific KB size?: Yes. Set the pixel size you need, tick Also compress to target KB, type the KB value (for example 20 for a signature or 100 for a photo), and click Resize all. The resizer changes the dimensions first, then the compressor iterates the encoder to land at or under your KB target when possible.
What are the passport photo and signature sizes for online forms?: Many Indian and international government or exam forms ask for a passport photo at 413x531 pixels (roughly 3.5x4.5 cm at 300 DPI) and a signature at 140x60 pixels. Both are one-click presets in this tool. Combine the pixel preset with the Also compress to target KB option to hit strict rules like photo under 100 KB or signature under 20 KB.
Does resizing reduce image quality?: Making an image smaller (downscaling) barely reduces perceived quality if done well. This tool downscales in steps (halving each pass) and uses high quality smoothing so edges and text stay sharp. Enlarging (upscaling) cannot invent detail that is not in the original, so an enlarged image will look softer than the source.
Can I enlarge an image?: Yes, but honestly: enlarging never adds real detail. If you enter a size larger than the original, the tool shows a warning and still produces the file. Expect a softer result. For small upscales (up to about 1.5x) most viewers will not notice.
Is this image resizer free?: Yes. No signup, no watermark, no email wall, and no daily limit. Resize as many images as your browser can hold in memory.
Are my images uploaded to a server?: No. Decoding, resizing, and re-encoding all run inside your browser tab. Your originals and the resized files are never uploaded, stored, or seen by us. You can disconnect from the internet after the page loads and it still works.
Can I resize many images at once?: Yes. Drop a whole folder of images, apply the same pixel or percent target to all of them in one pass, and download every result together as a single ZIP archive named resized-images.zip.
What image formats are supported?: JPG (JPEG), PNG, and WebP. Each file keeps its original format on output, so a JPG stays a JPG, a PNG stays a PNG, and a WebP stays a WebP.
Is transparency kept when I resize a PNG?: Yes. PNG (and WebP) outputs preserve the alpha channel, so transparent backgrounds stay transparent after resize. JPG has no alpha, so any transparent pixels in a JPG output are drawn on a white background.