Resize images to any size — free
Resize photos to exact pixel dimensions or ready presets for web, social and print — keep proportions or set a custom width and height.
- Resize by pixels, percentage or preset
- Lock aspect ratio or set custom dimensions
- Free · no signup · files deleted automatically
JPG, PNG, WEBP and more · Free up to 20 MB, Premium 50 MB

Drop an image — set exact dimensions and download the resized file
What you can do with Image Resizer
Everything this tool helps you accomplish — no learning curve, no setup.
- Resize images to an exact width and height
- Scale photos up or down by percentage
- Fit ready-made social media dimensions
- Create passport and ID photo sizes
- Keep the aspect ratio while resizing
- Add a solid or blurred background to fill space
- Bulk-resize many images into one ZIP
Settings information
13 settings
Every control in Image Resizer, explained — what it does and when to use it.
Mode
- Single image / BatchPresets
- Switches between resizing one photo and resizing many at once — Batch applies the same size and output settings to every image and downloads the results together as a ZIP.Options: Single imageBatch
Size
- Width (px)Number inputRange: 1–8192px
- Sets the exact output width in pixels, up to 8192; with the aspect-ratio lock on, the height updates automatically to match.
- Height (px)Number inputRange: 1–8192px
- Sets the exact output height in pixels, up to 8192; with the aspect-ratio lock on, the width updates automatically to match.
- Maintain aspect ratioOn / Off
- Keeps width and height in proportion so the photo is not stretched — edit one dimension and the other adjusts to preserve the original shape. On by default.
- Resize by PercentagePresets
- Scales the image relative to its own size — pick a percentage instead of calculating exact pixels; in Batch mode each image is scaled from its own dimensions.Options: 25%Half (50%)75%Original (100%)2x (200%) Enlarge
- Social Media SizesPresets
- One-click presets that fill in the exact pixel dimensions for Facebook, Instagram, Twitter and YouTube profile pictures, posts, stories and covers.Options: Facebook ProfileFacebook ImageFacebook CoverFacebook Event ImageFacebook Group PhotoInstagram PostInstagram StoryTwitter PostTwitter ProfileTwitter Header CoverYouTube ProfileYouTube Cover
- Passport SizesPresets
- Presets for common passport and ID photo dimensions so official photos come out at the required size without manual measuring.Options: 2.5cm x 3.5cm3.5cm x 3.5cm3.5cm x 4.5cm
Background
- Add Background ColorOn / Off
- Pads empty space with a solid color when the target size does not match the photo's proportions, instead of stretching or cropping; it becomes selectable once Use Blur Background is switched off, since only one fill can be active.
- Background colorColor picker
- Picks the fill color for the padded area — use the color picker, type a hex code, or tap a quick swatch (blue, white, black, light gray). Shown when Add Background Color is on.
- Use Blur BackgroundOn / Off
- Fills empty space with a softly blurred, zoomed copy of the photo itself so mismatched aspect ratios look natural; on by default, it always keeps the photo's proportions and locks out the solid color fill while active.
- Blur IntensitySliderRange: 5–50 · Default: 20
- Controls how soft the blurred background fill looks, from 5 (light) to 50 (heavy); higher values make the padding more abstract so the subject stands out. Shown when blur background is on.
Output
- QualitySliderRange: 10–100% · Default: 92%
- Sets compression for the resized output — higher keeps more detail with a larger file, lower gives smaller files for faster uploads and sharing.
- Output FormatDropdown
- Chooses the file type of the resized image independently of the source format — JPEG for small photos, PNG for graphics, WebP for modern web use, or GIF.Options: JPEGPNGWebPGIF
Resize to a popular size
Done with Image Resizer? Try these next
Hand-picked tools that pair well with Image Resizer. Keep going without losing your file.
Compress Image to KB
Form says 'max 100KB'? Compress JPG, PNG or WebP to any exact target — 20KB, 50KB, 100KB — without visible quality loss, in seconds. Free to start, no credit card.
Try it nowCrop Image
Cut out clutter and fit any ratio — drag the crop live, snap to 1:1, 4:5, 16:9 or exact pixels, and download in seconds. Free, no signup, no watermark.
Try it nowImage Format Converter
Stuck with a file that won't open or upload? Switch between PNG, JPG, WebP, GIF and SVG in one click and download instantly. Free, no signup, no watermark.
Try it nowRotate Image
Sideways photo or crooked scan? Turn it 90 degrees or straighten to any exact angle, choose the fill background, and download in seconds. Free, no signup, no watermark.
Try it nowWatermark Image
Stop reposts from erasing your credit. Add a text or logo watermark with exact position, opacity, scale and rotation — one photo now, whole shoots in batch with Premium. Free to start.
Try it nowImage to PDF
Turn JPG, PNG, WEBP or HEIC images into a single multi-page PDF — drag to reorder, preview, and download in seconds. Free to start, no credit card.
Try it nowFrequently Asked Questions
Upload your image, enter the desired dimensions, and click resize. This online image resizer preserves quality and helps create images for social media, websites, and print with precise dimensions. Supports JPG, PNG, WEBP, GIF, SVG formats for businesses and creators.
usageYes. Keep the aspect ratio locked and enter one dimension to automatically calculate the other. This is useful for creating images that fit specific layouts without distortion.
featuresWe support JPEG, PNG, WebP, GIF, and TIFF formats. The output format will be the same as the input format, preserving quality and transparency.
technicalMaking an image smaller (downscaling) keeps it sharp — we use high-quality resampling so detail stays clean. Making an image larger (upscaling) is different: there are no extra pixels to add, so the software interpolates and the result can look soft or blurry. To enlarge a photo without that softness, use our AI Upscaler, which reconstructs detail instead of stretching it.
qualityYes. Enter the exact pixel dimensions you need for a print-ready image. Note that print sharpness depends on pixel count, not just the DPI tag: for an 8x10" print at 300 DPI you need roughly 2400x3000 pixels. If your source is smaller than that, enlarge it first with our AI Upscaler so the print stays crisp.
featuresYes. Resizing happens on our secure servers; uploads are auto-deleted after processing and never shared. There are no watermarks, and you can download the resized image immediately, making it perfect for confidential client assets and brand images that require privacy.
privacyResizing changes the pixel dimensions (width × height), which usually lowers the file size too — but if you need to hit a specific target like 100KB, 50KB or 20KB, use the Compress Image tool instead. It optimizes the file size directly without changing the dimensions.
featuresResizing scales the whole image to new dimensions, while cropping cuts away part of the image to keep only the area you want. To trim or recompose a photo, use the Crop Image tool (or Circle Crop for round profile pictures), then resize the result here if you also need exact dimensions.
featuresClick one of the percentage presets — 25%, Half (50%), 75%, Original (100%) or 2x Enlarge — and the tool scales the target dimensions relative to your uploaded image's own size, so you don't have to calculate exact pixel numbers yourself.
usageYes. Social media presets fill in exact pixel dimensions for Facebook (profile, cover, post, event), Instagram (post, story), Twitter and YouTube in one click, and Passport presets cover the common 2.5x3.5cm, 3.5x3.5cm and 3.5x4.5cm photo sizes — no manual measuring needed.
featuresBoth fill the empty space when your target dimensions don't match the photo's original aspect ratio, so the subject isn't cropped or stretched. Add Background Color pads with a solid color you choose from the color field or presets; Use Blur Background pads with a softened, zoomed copy of the photo itself, with a Blur Intensity slider (5 light to 50 heavy) controlling how soft it looks. The two are mutually exclusive — turning one on switches the other off.
featuresThe Quality slider (10-100%) controls compression on the resized output — higher keeps more detail but produces a bigger file. Output Format lets you switch the result to JPEG, PNG, WebP or GIF independently of the source file's format, so you can resize a large PNG and export it as a smaller JPEG in the same step.
qualityPick the Instagram Post preset (1080x1080), turn on Use Blur Background so any mismatch between your photo's aspect ratio and the square target pads instead of cropping the subject, set Quality around 85-90, and choose JPEG as the Output Format for a fast-loading upload.
tipsYes. Switch to Batch mode, add all your images, and the same width/height (or percentage) and output settings are applied to every file, delivered as a single ZIP. Batch resizing is a Premium feature; single-image resizing is always free.
featuresBulk mode — a Premium feature — resizes many images in one go: upload the set, choose the dimensions or percentage once, and download all the resized copies as a single ZIP. A bulk pass like this is handy for product photos, galleries and email assets that all need the same size.
usageFile size in KB depends on both pixel dimensions and compression. Reducing the width and height here shrinks the file substantially, and lowering the quality setting reduces it further. If you need to hit an exact number, run the resized image through our image compressor, which accepts a target file size in KB.
tipsYes — pick resize by percentage and scale the image up or down proportionally, for example 50% to halve both dimensions. It keeps the aspect ratio automatically, so nothing looks stretched. Use custom dimensions instead when a platform asks for exact pixels, like 1080x1080 or 1280x720.
featuresYes — Pixoate supports batch and bulk processing. Switch to Batch mode, add up to 100 images, set your options once, and every image is processed with the same settings before you download a single ZIP. Bulk processing is a Premium feature that works through your files one after another with a live progress bar and estimated time remaining, so even large batches never time out.
featuresYes — with bulk processing you configure the settings a single time and they apply to every file in the batch, whether that is 5, 50 or 100 images. There is no need to repeat the setup per file, quality is preserved exactly as in single-file mode, and your files are processed securely and deleted automatically after download.
usageHow Image Resizer helps you get it done
Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start in seconds.
Website Optimization
Resize JPG, PNG, WEBP, GIF, SVG images for optimal website performance and faster loading times. Essential for businesses to improve SEO, Core Web Vitals, and user experience. Supports all major image formats for professional web design and e-commerce platforms.
Email Marketing
Resize images to meet email size limits while maintaining quality for businesses. Perfect for marketing campaigns, newsletters, and professional communications. Supports JPG, PNG, WEBP, GIF formats for optimal email delivery and engagement.
Social Media Marketing
Resize images to fit different social media platform requirements for businesses. Optimize content for Instagram, Facebook, LinkedIn, Twitter, and YouTube with precise dimensions. Supports all major formats for professional social media management.
Print Sizing
Resize images to specific dimensions for printing and physical displays for businesses. Perfect for marketing materials, brochures, banners, and professional presentations. Maintains quality for high-resolution printing requirements.
Mobile Optimization
Optimize images for mobile devices and apps with appropriate sizing for businesses. Improve mobile user experience, reduce bandwidth usage, and enhance app performance. Supports all major formats for responsive web and mobile app design.
Storage Management
Reduce image file sizes to save storage space on devices and cloud storage for businesses. Essential for managing digital assets, reducing hosting costs, and improving backup efficiency. Supports JPG, PNG, WEBP, GIF, SVG formats.
Compliant Passport & Visa Photos at Home
Use the built-in Passport size presets (2.5x3.5cm, 3.5x3.5cm, 3.5x4.5cm) to get the exact dimensions embassies and passport offices require, without a trip to a photo studio.
Batch-Resize an Entire Shoot for Delivery
Switch to Batch mode and apply a single percentage or pixel target across dozens of photos at once, then hand a client a ready-to-use ZIP instead of resizing each image by hand.
Square Thumbnails Without Cropping the Subject
Turn on Add Background Color or Use Blur Background so a photo with the 'wrong' aspect ratio still fills a square product-grid or app-icon slot without chopping off part of the subject.
Shrink Page Weight by Converting Format on the Fly
Combine the Output Format switch (to WebP) with the Quality slider while resizing so the same step that fits your layout also cuts file size for faster Core Web Vitals scores.
One-Click Sizing for Every Social Platform
Pick a built-in Facebook, Instagram, Twitter or YouTube preset (profile, cover, post or story) to get the exact pixel dimensions each platform recommends in a single click, instead of looking up and typing each network's spec by hand.
Pixoate