Add your image
Choose one file or a group of JPG, PNG or WebP images. The original dimensions are shown before any change.
Change image dimensions for a website, profile card, listing or document while keeping the aspect ratio. Set a maximum width or height, review the result, and download the resized file.
Choose JPG, PNG or WebP files. You can add several images and process them together.
or drag and drop files into this panel · JPG · PNG · WebP · Up to 20 MB per fileYour files are processed in this browser session. We do not need an account for the basic workflow.
Your processed images will appear here.
Resizing changes pixels; compression changes encoded bytes. For faster pages, resize to the display dimensions first and then compress the new image.
Choose an image, set a practical goal and review the smaller file before downloading it. The original remains on your device for comparison.
Choose one file or a group of JPG, PNG or WebP images. The original dimensions are shown before any change.
Enter a maximum width, maximum height, or both. Blank sides stay proportional and the image is never stretched.
Check the new pixel dimensions and visual quality, then download the resized files or ZIP batch.
A photo can be heavy for two different reasons: it may contain too many pixels, or it may be encoded at a quality level that produces more bytes than the destination needs. Resize is the answer when the canvas is too large. Compression is the answer when the dimensions are useful but the file still needs to load or upload faster.
This page keeps the aspect ratio proportional. Entering a maximum width of 1200 pixels lets a portrait become narrower while preserving its height ratio; entering a maximum height does the same for a landscape. After resizing, use the main compressor if the destination also imposes a byte limit.
Do not resize to an arbitrary number just because it is smaller. Use the receiving layout, profile slot or document requirement as the reference, and leave enough pixels for the sharpest expected display. The tool never enlarges a smaller source, so an already-small image remains intact rather than gaining blur from an unnecessary scale-up.
If you enter both a maximum width and height, the smaller proportional scale wins so the output fits inside both boundaries. Leave one field blank when only one side matters, and review the reported dimensions before combining the resized output with a target-size compression pass.
Keep the intended crop decision separate from resizing. If a square avatar or banner needs a different composition, crop it in a dedicated editor first, then use this page to scale the finished frame without distorting the subject. This separation keeps the resize result predictable across repeated exports and responsive layouts on desktop and mobile for common content slots.
To resize image without stretching, enter the maximum side that the destination can display and leave the other field blank when it is not constrained. The tool calculates the matching dimension from the source ratio, so a portrait remains a portrait and a landscape remains a landscape. Review the reported width and height before downloading the final file.
The resize image tool never enlarges a smaller source to fill a larger limit. That protects sharpness, but it also means a low-resolution original may still look soft in a wide slot. If the destination needs a different composition, crop first; if it needs fewer bytes, compress the resized output afterward instead of using a very small width as a substitute for compression.
When you resize image files in bulk, group assets that share a destination layout. A set of product cards can use one maximum width, while hero images, avatars and document scans usually need different limits. Check one portrait, one landscape and one transparent file so the shared dimensions do not create unexpected padding or readability problems.
Record the output dimensions with the published asset when a team maintains a website or catalog. This makes responsive image decisions easier to reproduce and helps explain why a file is smaller after resizing. Keep the original source separate, especially when a future design needs a larger crop or a different aspect ratio.
Use the maximum width or height as a design decision, not just a smaller number. Measure the real slot in the website, profile card or document and leave enough pixels for the sharpest expected display. When you resize image files to a known slot, you reduce download and decode work without asking compression to hide unnecessary detail.
After resizing, review both the dimensions and the encoded file size. Fewer pixels usually reduce bytes, but a PNG with transparency or a high-quality WebP can still be larger than expected. If the destination has a byte limit, use the resized result as the new input for the compressor and keep the untouched source for future crops.
A reliable resize handoff names the destination slot and the chosen limit. Record whether the image is used as a card, avatar, banner, document page or full-width photo, then note the final width and height beside the published asset. When you resize image files in a recurring workflow, this record prevents accidental upscaling and makes it clear when a new design needs a fresh crop rather than another proportional export.
Resizing is also a useful preparation step for compression. A source that is already close to its display width gives the encoder fewer pixels to process, so you can often keep a moderate quality setting instead of forcing a very small file through aggressive compression. Check the result on desktop and mobile, keep the original source for future layouts, and use the related compressor when the receiving service imposes a byte limit as well as a dimension rule.
Before you resize image files for a production page, measure the rendered slot rather than copying a generic width from another project. A card, avatar, banner and document preview can all be responsive but still need different maximum dimensions. Record the chosen limit and inspect a representative portrait, landscape and transparent asset. This keeps the resize image workflow predictable and avoids a later re-export when a layout reveals that the source was either unnecessarily large or too small to remain sharp. If you resize image again for a new breakpoint, return to the original source and compare the result at both the narrow and wide display widths.
A 4000 × 3000 camera photo can become 1200 × 900 for a content card. The output has fewer pixels to decode and can then be compressed without throwing away detail that the card could never display.
Use the final display width as a practical maximum instead of keeping invisible extra pixels.
Keep the aspect ratio for faces, products and screenshots unless the design explicitly requires a crop.
Use the compressor after resizing when a file-size limit still applies.
For a transparent image, keep PNG or compare WebP before exporting.
No. The tool keeps the aspect ratio and scales proportionally from the maximum width or height you provide.
Yes. Add a batch and the same dimension limits are applied proportionally to each file.
Usually, because fewer pixels need to be encoded, but the final bytes also depend on format and quality. Compress the resized output when necessary.
Yes. Keep PNG selected and check the transparent edges in the preview before downloading.