What this tool does
- Batch processing — drop in as many images as you like and resize them all with one set of settings, then download them together as a ZIP
- Three resize modes — exact pixels (by width or height, with the other side calculated automatically per image), percentage scaling, or a ready-made social media preset
- Manual crop — drag a crop box over any image before resizing, per image
- Rotate & flip — fix a sideways photo or mirror an image before resizing, per image
- Cover / Fit / Stretch — control how an image fills a fixed box: crop to fill it exactly, pad it to fit without cropping, or stretch to match
- Format conversion — export as PNG, JPEG, WebP, or AVIF, or keep each image's original format — including converting iPhone HEIC photos to JPEG
- Target file size — set a KB limit for JPEG, WebP, or AVIF output and the tool searches for the highest quality that fits under it
- Live size estimate — see the resulting dimensions and file size, and the percentage saved, before you download anything
Why resize an image
- Faster page loads — smaller images mean a faster, lighter website
- Meeting upload limits on forms, marketplaces, or email attachments
- Fitting exact dimensions required by social media profiles and posts
- Saving storage space without needing separate software
Choosing the right format
PNG is lossless and supports transparency, best for logos, icons, and screenshots with text. JPEG compresses photos well at a much smaller file size, ideal for photographs where a small quality trade-off isn't noticeable. WebP typically produces smaller files than both at similar quality and is supported by all current browsers. AVIF usually compresses even tighter than WebP at the same visual quality; export support currently varies by browser, so the option disables itself automatically where it isn't available.
Exact image dimensions for common platforms
Use these as your target pixel size in the resizer above. Platforms compress and re-encode whatever you upload regardless of size, so uploading at the exact dimension avoids an extra, uncontrolled recompression pass on their end.
| Use | Size (px) |
|---|---|
| Instagram square post | 1080 × 1080 |
| Instagram / TikTok story | 1080 × 1920 |
| Facebook post | 1200 × 630 |
| Facebook cover photo | 820 × 312 |
| X (Twitter) post image | 1600 × 900 |
| LinkedIn post image | 1200 × 627 |
| LinkedIn cover banner | 1584 × 396 |
| YouTube thumbnail | 1280 × 720 |
| Open Graph / link preview | 1200 × 630 |
Platforms update their specs periodically — these reflect commonly recommended sizes as of 2026 and work well in practice even if a platform's exact preference shifts slightly.
Frequently asked questions
Does resizing reduce image quality?
Shrinking an image rarely causes visible quality loss. Enlarging an image beyond its original dimensions can make it look soft or blurry, since no new detail is being added — this tool avoids upscaling by default unless you turn that option on.
Are my images uploaded anywhere?
No — every resize, rotate, and compression step happens entirely in your browser using the canvas element. Your images are never sent to a server, even when resizing dozens of files at once.
Can I resize multiple images at once?
Yes — drop or select several images and they're all resized with the same settings. When you're done, download them individually or as a single ZIP file.
What is AVIF and should I use it?
AVIF is a modern image format that typically produces the smallest file size at a given quality level, smaller than JPEG or WebP. It's supported for export in Chromium-based browsers; if your browser can't encode it, the option is disabled automatically.
Can I upload iPhone photos (HEIC)?
Yes — HEIC and HEIF files are converted to JPEG automatically before resizing, entirely in your browser. The conversion library only loads if you actually upload a HEIC file, so it doesn't slow down the page otherwise.
Does this tool remove GPS location and other metadata from my photos?
Yes, automatically. Resizing redraws the image onto a blank canvas and re-encodes it from scratch, so EXIF data — including GPS location, camera model, and timestamps — is not carried over to the downloaded file.