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Resize Image on Windows

Windows ships with Paint and the Photos app, but neither handles modern resize needs well.

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Works in Edge, Chrome, or Firefox on Windows

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No software installation required

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Precise pixel dimensions and file size control

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Drag and drop from File Explorer into the browser

Cost: Free forever
Sign-up: Not required
Processing: In your browser
Privacy: Files stay local

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Add this Image Resizer to your website

Drop the Image Resizer into any page — blog post, product docs, intranet, school portal — with a single line of HTML. Your visitors get the full tool, processed entirely in their browser. No backend, no uploads, no signup.

Files stay 100% in the visitor's browser
Responsive — adapts to any container width
Free forever, no API key needed

Embed code

<iframe
  src="https://www.fixtools.io/image-tools/image-resizer?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="Image Resizer by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

<iframe
  src="https://www.fixtools.io/image-tools/image-resizer?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="Image Resizer by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Attribution-friendly: a small "Powered by FixTools" link appears in the embed footer.

Windows Paint, Photos App, and Why Browsers Fill the Gap

Microsoft Paint resizes images through Home tab Resize and Skew, which lets you scale by percentage or by absolute pixels with an option to maintain aspect ratio. This covers the basic resize need and works on any Windows installation since Paint is pre-installed everywhere. The limitation is output quality control: Paint saves JPG files at a fixed quality setting somewhere around 70 to 80 percent with no slider to adjust. For high-quality output this matters because compression artifacts can be visible in photos that need to look sharp. Paint also does not show the estimated output file size before saving, which makes it difficult to target a specific kilobyte limit for portal uploads. Paint is useful for quick rough resizing but not the right tool when quality or file size precision matters.

The Windows Photos app added basic editing features in Windows 10 and continues to evolve in Windows 11, but it still does not include a pixel-dimension resize function in the standard editing surface. Microsoft has positioned Photos as a viewing, organising, and lightly enhancing tool rather than a pixel-level image editor. The crop tool allows aspect ratio changes, and there are auto-enhance and colour adjustment options, but no Resize by Pixels anywhere in the interface. For pixel-level control on Windows your built-in options are Paint, Paint 3D which is being deprecated, and the Snipping Tool which only resizes screenshots in narrow circumstances. None of these match the flexibility most users actually need for portal uploads, social media, or web work.

Microsoft PowerToys, a free utility collection published by Microsoft, includes an Image Resizer that adds a right-click option in File Explorer. Once installed, you can select one or more images, right-click, and choose Resize Pictures to apply a predefined or custom size to all selected files at once. PowerToys is the closest Windows native equivalent to macOS Automator Quick Actions and is genuinely worth installing for users who resize frequently. The Image Resizer in PowerToys also exposes a quality slider for JPG output, addressing one of the main Paint limitations. For batch workflows where the same target size applies to many files, this is the fastest path on Windows.

Browser-based tools like FixTools close the remaining gaps for one-off resizing and for any task where you want to see the output file size before downloading. In Edge or Chrome on Windows you drag images directly from File Explorer onto the upload zone, type exact pixel dimensions, set JPG quality precisely, and see the output file size before saving. The end-to-end flow takes under 30 seconds and requires no installation. For Windows users who do not want to install PowerToys or learn Photoshop, the browser approach handles every routine resize scenario faster than launching Paint and with much better quality control than Paint provides on its own.

Microsoft Support: Resize a picture in Paint Microsoft PowerToys: Image Resizer utility Wikipedia: Microsoft Paint

How to use this tool

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Open FixTools in Edge or Chrome on Windows, drag your image from File Explorer into the upload area, enter your target dimensions, and download the resized image.

How It Works

Step-by-step guide to resize image on windows:

1
Open FixTools in Edge or Chrome
Launch Microsoft Edge, Google Chrome, or Firefox on Windows and navigate to fixtools.io, then click into the Image Resizer tool. All three browsers run the same Canvas-based image processing so quality and speed are identical regardless of choice. Edge is the default on Windows and integrates well with File Explorer drag and drop. There is no extension to install, no account to create, and no software to download.
2
Upload your image
Click the upload area to open the Windows file picker, or drag an image file directly from any File Explorer window onto the upload zone. Drag and drop is faster on Windows because File Explorer is part of most normal workflows already. The upload accepts JPG, PNG, WebP, BMP, GIF, and most common formats. Multiple files can be dragged together for batch resizing to consistent dimensions across the set.
3
Enter your target dimensions
Type the target width and height in pixels into the input fields. Enable Lock Aspect Ratio to keep proportions consistent and let the tool auto-calculate the second dimension as you type the first. The current source dimensions are displayed above the input fields so you can verify the source size before deciding on a target, which helps you avoid accidental upscaling beyond reasonable limits.
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Click Resize
The resize runs locally inside the browser using the Canvas API and your Windows machines processor. Nothing is uploaded to any remote server, so processing speed depends on your hardware rather than your internet connection. Typical photos resize in under a second on any modern desktop or laptop, and even older machines handle the operation in two or three seconds without struggle. The output preview appears alongside the input for visual comparison.
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Download the resized image
Click Download and the file saves to your Downloads folder, which appears in File Explorer under This PC or the navigation pane. From there move it to its final destination, attach it to an email, or upload it to whichever portal needed the resized version. The downloaded filename keeps the original base with a size suffix appended, so multiple resized variants of the same source remain organised without overwriting each other.

Real-world examples

Common situations where this approach makes a real difference:

A school administrator resizes photos for a staff directory to 300 by 300 pixels by dragging each image from File Explorer into FixTools in Edge, without installing any software.

The administrator collects headshots from staff over email and needs them all at a consistent square size for the directory page. Dragging each photo from the email attachments folder onto FixTools in Edge produces the resized output in seconds, and the workflow scales naturally to the full staff list because there is no per-file setup. No new software is installed on the school workstation, which matters in environments with strict IT policies that limit user installations and require admin approval for any new application.

A Windows PC user resizes a 6MB camera photo to 1200 pixels wide in Edge before attaching it to an email, since Paint does not let them control the output quality.

The user wants to send a high-quality photo via email but the original at 6MB exceeds the mail providers attachment limit. Paint would resize but at its fixed JPG quality the result looks visibly compressed. FixTools in Edge lets the user set 90 percent quality explicitly during resize, producing an attachment under 1MB that still looks sharp when the recipient opens it. The user appreciates the quality slider precisely because they were burned previously by Paints aggressive default compression on a photo that mattered.

A freelance video editor resizes client-supplied JPGs to thumbnail dimensions for a YouTube upload queue, drag-dropping files from File Explorer into FixTools in Chrome.

The editor receives thumbnail source images from clients at varied sizes and needs them all at exactly 1280 by 720 pixels for YouTube. Dragging files from the client project folder onto FixTools in Chrome produces the resized thumbnails in batch, and the editor uses the output file size readout to verify each one falls within YouTube own thumbnail size limit before uploading. The browser-based flow integrates smoothly with the editors existing File Explorer and project management habits without forcing a new app install.

A retail store manager resizes weekly promotional photos to 1000 by 1000 pixels for the store website in Edge between deliveries to the store.

The manager photographs new arrivals each week and needs them at a consistent square size for the website product grid. Resizing in Edge between unboxing fresh stock keeps the website current without waiting for a dedicated photo editing session at the end of the week. The browser-based workflow runs entirely on the front-counter PC with no special software, which also means any covering staff can handle the same workflow without needing additional training or access to specialist tools.

Pro tips

Get better results with these expert suggestions:

Drag images from File Explorer directly into the browser

In Edge or Chrome on Windows, drag any image file from a File Explorer window and drop it onto the FixTools upload zone. This is faster than clicking Browse and navigating through the file picker, and it works with any image format File Explorer recognises. Hold Shift while dragging if you want to keep the File Explorer window visible behind the browser so you can drop multiple files for batch resizing without the explorer window minimising itself out of the way.

Install Microsoft PowerToys for a right-click batch resizer

Microsoft PowerToys is a free official Microsoft utility that adds an Image Resizer to the File Explorer right-click context menu. Select one or more images in File Explorer, right-click, and choose Resize Pictures to apply a predefined or custom size to all of them at once. PowerToys also includes a quality slider for JPG output, addressing the main Paint limitation. For users who batch resize regularly, this is the fastest Windows native option and well worth the small install.

Paint saves JPG at fixed quality, so use browser tools for quality control

Microsoft Paint exports JPG files at a fixed quality setting around 70 to 80 percent with no slider available to the user, which can introduce visible compression artifacts on photos that need to look sharp. For high-quality output at 90 percent or higher, use FixTools or another browser tool where you can set the exact quality level before downloading. The difference is most visible on photos with fine detail, subtle gradients, or text overlays where Paints fixed compression is noticeably aggressive.

Use the File Explorer preview pane to verify dimensions after resizing

In Windows File Explorer, enable the Preview Pane through View and then Preview pane. Click on your resized image file to see its dimensions displayed in the preview pane without opening any application. This is the quickest way to confirm the output dimensions match your target before uploading to a portal that validates dimensions on the server side. The Details pane also shows the same information alongside the file size for confirmation.

FAQ

Frequently asked questions

Use Microsoft Paint, which ships built into every Windows installation at no cost. Open your image in Paint, click Resize in the Home tab, choose Pixels, enter your target dimensions with Maintain aspect ratio checked, and save. For better quality control over JPG output, use FixTools in Edge or Chrome instead. Drag your image from File Explorer onto the upload zone, enter dimensions, and download with full quality control. Both options are free and require no installation, with FixTools adding precise file-size visibility that Paint lacks.

Yes, open your image in Paint, click Resize in the Home tab, select Pixels rather than Percentage, enter your target width or height with Maintain aspect ratio checked, click OK, and save the result. The limitation is that Paint exports JPG at a fixed quality setting with no slider, and it does not show the file size before saving. For routine pixel resizing where the output quality default is acceptable, Paint is perfectly adequate. For high-quality output or file-size targeting use FixTools or PowerToys Image Resizer instead.

Install Microsoft PowerToys, a free official Microsoft utility, which adds an Image Resizer to the File Explorer right-click menu. Select multiple images, right-click, choose Resize Pictures, pick your target size or define a custom one, and click Resize. PowerToys processes all selected files instantly without opening any application and supports a quality slider for JPG. Alternatively, drag multiple files together onto the FixTools upload zone in your browser for batch resizing with on-screen quality control.

Yes, in Edge or Chrome on Windows you can drag any image file from File Explorer and drop it onto the FixTools upload zone. The file uploads immediately without opening a file picker dialog. Drag and drop also works with multiple files for batch resizing, and you can drag from any File Explorer window, the Desktop, or even search results. It is faster than the file picker for most workflows and integrates naturally with the way most Windows users already navigate their files.

No, the Windows Photos app does not include a pixel-dimension resize function. The available editing tools cover cropping, auto-enhance, and colour adjustments but not Resize by Pixels. For pixel-level resizing on Windows use Microsoft Paint, install PowerToys for a right-click batch resizer in File Explorer, or use a browser-based tool like FixTools in Edge or Chrome. The browser approach is usually the lowest friction for one-off tasks because it requires no installation and gives you precise quality and file-size control.

Yes, FixTools is fully compatible with Microsoft Edge on Windows because Edge supports the Canvas API and File API used for browser-based image processing. You can upload, resize, and download images in Edge without any extensions or plugins. Edge built-in drag and drop support from File Explorer also makes dragging files into the upload zone particularly smooth on Windows. Chrome, Firefox, and Brave also work identically because they share the same underlying web platform features for Canvas image manipulation.

The most effective method is a two-step approach: first reduce pixel dimensions using Paint, PowerToys Image Resizer, or FixTools. Halving the pixel width and height reduces file size by up to 75 percent before any quality reduction. Then if the file is still too large, use FixTools Image Compressor to adjust JPG quality with the slider until the file hits your target size. This combination gives the best balance of small file size and acceptable visual quality and works for any portal upload limit.

Yes, Paint, PowerToys Image Resizer, and FixTools all support PNG input and output on Windows. If you resize a PNG and save as PNG, the output is lossless and stores every pixel exactly. If you save as JPG, the output is much smaller but applies lossy compression to the result. For logos and graphics with sharp text or hard edges, keep the output as PNG to avoid compression artifacts. For photographic PNGs, converting to JPG during resize usually cuts file size by 80 to 90 percent with no visible quality loss.

Yes, FixTools works identically on Windows 10 and Windows 11 because all processing happens inside the browser using standard Canvas API and File API features that have been supported for many versions. The browser is what matters rather than the Windows version, so as long as you have a reasonably recent Edge, Chrome, Firefox, or Brave installation, FixTools will work the same way. Edge ships with both Windows versions and is updated regularly, so most users have everything they need without any extra setup.

Not from FixTools directly because the browser-based tool runs inside a browser tab rather than as a shell extension. For native right-click resizing in File Explorer, install Microsoft PowerToys which adds an Image Resizer option to the right-click menu. Combine PowerToys for native right-click batch resizing with FixTools in the browser for one-off resizes that need precise quality and file-size visibility, and you cover every common Windows resize scenario without paying for or learning professional image software.