Resize Image Online — Free, No Upload, No Account
Set exact pixel dimensions or scale by percentage. Aspect ratio lock included.
Resize Image FreeFree online resizer — exact pixels or percentage, no upload, no account.
The fastest free online image resizer. Set exact pixels or scale by percentage — aspect ratio lock, format conversion, no upload, no limits. Resize your image and download in seconds, directly in your browser.
Free online image resizer — exact dimensions, no upload
Resize any image online to exact pixel dimensions — no upload, no account, no limits. Enter your target width and height, lock the aspect ratio, and download the result in seconds.
Unlike cloud-based resizers that upload your files to a server, everything here runs directly in your browser using the Canvas API. No waiting, no privacy risks, no usage cap — resize as many images as you need, at any resolution, completely free.
Resize and convert format in one step: output as JPEG for web or email, PNG for graphics with transparency, or WebP for the smallest possible file size. A quality slider controls output compression. Supports JPG, PNG, WebP, AVIF, HEIC and TIFF input.
Also try our image compressor, social media resizer, or background remover — all free, all in-browser.
- 1Upload your image
Drag and drop any image onto the upload area, or click to browse. Supported: JPG, PNG, WebP, AVIF, HEIC and TIFF. The original dimensions appear immediately after upload. No file size limit — processing runs locally in your browser.
- 2Set target dimensions and format
Enter the target width or height in pixels (the other value updates automatically with aspect ratio lock), or switch to percentage mode and enter a scale factor. Choose output format: JPEG, PNG or WebP. Adjust quality if needed.
- 3Download your resized image
Click "Download" to save the resized image. The file is exactly the pixel dimensions you specified — no watermark, no quality loss beyond your chosen settings. Ready to upload to any platform, CMS or tool.
Who uses this online image resizer
Social media managers — platform-ready dimensions
Perfect for ecommerce, social media, and marketing teams. Instagram, Facebook, Twitter, LinkedIn, YouTube and TikTok all have specific image dimension requirements. Uploading the wrong size results in unwanted cropping, blurry upscaling or letterboxing. Resize images to exact platform specs before uploading: 1080×1080px for Instagram, 1280×720px for YouTube thumbnails, 1200×627px for LinkedIn posts. Get it right every time without guessing.
Web developers — right size for every layout slot
Web pages need images sized precisely for their container: hero images at 1920px, blog post images at 1200px, card thumbnails at 400–600px. Oversized images waste bandwidth and slow Core Web Vitals. Resize images to the exact width they will be displayed before uploading to a CMS, static site generator or web application. Use WebP output for the smallest file sizes in modern browsers.
Ecommerce sellers — meet marketplace dimension requirements
Amazon requires product images at 1000px minimum (2000px recommended for zoom). Shopify recommends 2048×2048px for product images. Etsy recommends 2000×2000px for listing photos. Resize product photos to meet each platform's exact requirements before uploading. Correctly sized images pass validation, enable zoom functionality and display correctly across all device sizes.
Designers and content creators — fit any template or spec
Design briefs, presentation templates, mockups and brand guidelines specify exact pixel dimensions for every image slot. Instead of opening Photoshop for a simple resize, use this tool — upload, enter the dimensions, download. Works for resizing reference images for mockups, adjusting logos to exact sizes, preparing thumbnails for video series, or resizing any asset to fit a specific grid or layout specification.
Why this is the best free online image resizer
Precise dimension control, privacy-first processing, and format conversion — all free.
Resize to exact pixels or scale by percentage
Set exact pixel dimensions for width and height, or scale the image by a percentage — 50%, 200%, any value. Aspect ratio lock keeps your image proportional automatically: change the width and the height updates to match in real time. You can also unlock aspect ratio and set width and height independently for cropped-fit use cases. The result is the exact size you specified, with no guesswork.
Your image never leaves your device
All resizing runs entirely in your browser using the Canvas API. No image is uploaded, transmitted or stored anywhere. The tool works without an internet connection after the initial page load. This makes it safe for resizing personal photos, confidential client images, medical files and any content you cannot let touch an external server.
Resize and convert format in one step
While resizing, choose your output format: JPEG for photos destined for web or email, PNG for graphics that need lossless quality or transparency, or WebP for the smallest possible file size in modern browsers. A quality slider controls compression level for JPEG and WebP output. Resize and convert in a single operation — no need for a separate conversion step.
Questions about this online image resizer
Yes — completely free. No account, no payment, no watermark, no daily limit. Resizing runs in your browser, so there are no server costs. Resize as many images as you want at any size.
Upload your image, select pixel (px) mode, enter your target width or height, and click Download. With aspect ratio lock on, the other dimension updates automatically. Switch the lock off to set width and height independently.
Yes. All resizing runs locally in your browser using the Canvas API. Your image never leaves your device — no upload, no server, no third-party access. Safe for personal, confidential and client content.
Yes. Select PNG as the output format and transparency is preserved in the resized file. JPEG does not support transparency, so choose PNG or WebP for any image with transparent areas.
There is no server-side limit because resizing runs in your browser. Very large images (8000px+, 50MB+) may be slower on older devices due to memory constraints, but there is no hard size cap.
Yes. Open the tool in Safari (iPhone) or Chrome (Android), upload from your camera roll, resize and download. No app installation required.
For quick, precise resizing, yes — faster and free. Photoshop offers more resampling algorithm options for specialized upscaling. For standard web and social media use cases, output quality is equivalent.
Yes. After the page loads, all resizing runs locally on your device. No internet connection is required.
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Resize Image Free