Free Image Resizer & Compressor
Resize, compress and prepare your images in one place. Set custom pixel dimensions, reduce image file size to a target KB or MB, convert formats, and choose image sizes for social media, websites, online stores and everyday business tasks.
Everything You Need to Prepare Images
Useful tools for creators, students, businesses, online sellers and website owners.
1. Select Your Images
Choose images to resize or compress
Tap the button or select images from your device.
Supports common image files. Animated GIFs are processed as a still frame. Large batches may use substantial device memory.
2. Choose Image Dimensions
Popular searchable presets are shown first. Open the complete list for more platforms and sizes.
Popular Social Media Presets
Snapchat
Threads
TikTok
X (Twitter)
YouTube
Website, Blog & Online Store
Business, Office & Documents
No matching preset found. Try a different search.
Target size is best-effort. Some formats, especially PNG, may not reach every requested file size. Images are processed locally in this browser.
3. Your Processed Images
Compare output dimensions and file sizes, then download individual images or all results in one ZIP file.
No processed images yet.
Free Image Resizer & Compressor: Resize, Compress and Convert Images Online
An image resizer and compressor helps you change image dimensions and reduce the size of image files for websites, social media, online forms, email attachments and business documents. This free browser-based tool lets you choose pixel dimensions, select an output format and try to reduce an image to a target KB or MB size.
Use it when you need to resize an image online, compress a photo, reduce a picture's file size, prepare a social media graphic or make an image easier to upload. You can select multiple images and process them in one session.
Resize an Image Online to Exact Dimensions
Image dimensions are usually measured in pixels. Enter the width and height you need, or choose a preset for a common use. For example, you might prepare a 1200 × 675 image for a blog feature, a 1080 × 1080 square graphic or a 1920 × 1080 widescreen image.
When the aspect-ratio option is enabled, changing one dimension adjusts the other proportionally. If you need an exact shape, select a crop ratio and enable crop-to-fill. Center cropping can remove content near the edges, so check the image before downloading.
Compress Images and Reduce File Size in KB or MB
Image compression reduces the amount of data stored in a file. A smaller image file is easier to attach to email, upload to forms and deliver to visitors on a website. Enter a target size such as 100 KB, 200 KB or 1 MB to ask the tool to try to keep the output within that limit.
Whether a target can be reached depends on the original image, its dimensions, the format and the image content. If a file cannot reach the requested size at acceptable quality, try smaller dimensions or a different output format. The tool reports the actual result rather than guaranteeing a particular file size.
How to reduce an image to 100 KB or 200 KB
- Select your image.
- Choose the required width and height, or select a relevant preset.
- Enter 100 or 200 in the target-size field and choose KB.
- Select JPG or WebP if suitable for your image.
- Process the image and check the actual output size.
- If it is still too large, try smaller dimensions or a lower quality setting.
JPG vs PNG vs WebP: Which Format Should You Choose?
- JPG: often a practical choice for photographs and general-purpose images where smaller file size matters.
- PNG: useful for graphics, sharp edges and transparency. PNG is lossless, so a JPG-style quality slider cannot guarantee a smaller PNG.
- WebP: supports lossy and lossless image encoding and can be useful for website images. Check that the software or platform you use supports WebP.
Converting formats may change image quality or transparency. When a transparent PNG is exported as JPG, transparent areas cannot remain transparent. Always inspect the exported result if transparency or fine details are important.
Social Media Image Resizer: Instagram, YouTube, Facebook and More
Social platforms use different image shapes for posts, stories, profile graphics, covers and thumbnails. The visible presets help you choose a starting size without memorizing every dimension. Platform requirements can change, and recommended dimensions are not a guarantee that every upload rule will be met.
- Instagram image resizer: prepare square posts, portrait graphics, landscape images and vertical story or reel artwork.
- YouTube thumbnail resizer: prepare 3840 × 2160 video thumbnails or 2160 × 3840 vertical Shorts thumbnail artwork. YouTube's current guidance recommends these resolutions and specifies upload-size limits that depend on device. Check the latest YouTube thumbnail requirements before uploading.
- YouTube channel banner: 2560 × 1440 is the recommended banner size. Keep important text and logos in the platform's safe area. See YouTube channel branding guidance.
- Facebook image resizer: use a practical post, square graphic or cover preset and confirm the current placement requirements.
- LinkedIn image resizer: prepare a post image or profile and company cover graphic.
- Pinterest pin resizer: prepare vertical or square pin artwork.
- TikTok and Snapchat: use vertical 9:16 artwork as a starting point for stories, videos or cover graphics.
- WhatsApp status resizer: prepare a vertical status image or square image to share in chats.
- X image resizer: prepare post images and header artwork.
- Threads image resizer: create square or portrait graphics for posts.
For a full list of available presets, open “View All Social Media Presets” and search by platform name or dimensions.
Resize Images for Websites, Blogs and Online Stores
Large image files can contribute to slower page loading, especially on mobile connections. Resizing images to suitable display dimensions and compressing them can help reduce transfer size. Choose dimensions that fit the actual layout instead of uploading unnecessarily huge images for small display areas.
Website image, blog featured image, product image, link preview and email presets are starting points, not universal requirements. Check the image dimensions and file limits of your website theme, content management system, email service or online marketplace.
Image Resizer for Business, Office and Everyday Tasks
Students can resize images for assignments and presentations. Office workers can prepare images for reports and slides. Small businesses can optimize product photos, prepare promotional graphics and reduce large attachments. Website owners can make image assets more suitable for their pages.
A square ID-photo preset is a generic starting point only. Passport, visa and official ID photos may have country-specific requirements for dimensions, background, face position and print size. Check the relevant authority's requirements before submitting a photo.
Resize Multiple Images at Once
Batch processing can save time when many images need the same dimensions and format. Select multiple files, choose your settings, and start processing. The tool creates a result for each image that succeeds. You can download files individually or use the ZIP option to collect the results.
Processing many large photos may require significant memory and CPU time on a phone. If the browser becomes slow, process fewer images at once or reduce the output dimensions.
How to Make Images Smaller Without Losing Too Much Quality
- Start with dimensions close to the size you actually need.
- Use JPG or WebP for many photographic images.
- Keep PNG for graphics where lossless quality or transparency matters.
- Reduce dimensions before repeatedly lowering image quality.
- Compare the output visually and check the actual file size.
- Keep an original copy of important images before editing.
No compression method can promise that every image will become dramatically smaller without any visible quality change. The best balance depends on the original file and intended use.
Frequently Asked Questions
Is this image resizer free?
Yes. The tool is designed to run in your browser without requiring an account or a paid image-processing API.
Can I resize an image to a specific width and height?
Yes. Enter dimensions in pixels or select a preset. If crop-to-fill is enabled, the centered crop may remove parts of the original image.
Can I reduce an image to 100 KB or 200 KB?
You can set a target in KB or MB. The tool tries to meet it, but the final size depends on the source image, output format, dimensions and quality.
Will resizing reduce image quality?
Changing dimensions can remove detail, and lossy compression can introduce artifacts. Choose suitable dimensions and inspect the result before using it.
Can I convert PNG to JPG or WebP?
Yes. Select a supported output format. Remember that JPG does not preserve transparency, so transparent areas may appear with a background.
Can I resize multiple images together?
Yes. Select multiple files and apply the same settings. Very large batches may be slower on mobile devices.
Are my images uploaded to a server?
The image-processing code runs in your browser and does not send selected images to an image-processing server. Your browser and hosting platform still operate under their own privacy and security policies.
Why is the output still larger than my target?
Some images and formats cannot reach a requested size at the chosen dimensions and quality. Try smaller dimensions, a suitable lossy format or a different quality setting.
Are all preset dimensions official platform requirements?
No. Some presets are practical common starting points. Platform requirements can change, so confirm the current rules for important uploads.
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