Resize Images Online for Free
Set your dimensions, drop your photos, and download instantly — no sign-up required.
Drop Images to Resize
or select files from your device — up to 100 images free
The fastest way to resize photos in bulk
Built for creators, sellers, and teams who move fast. No sign-up, no watermarks, no waiting.
100% private
Images never leave your device — processed locally in your browser.
Instant results
Resize and download dozens of photos in seconds.
Batch up to 100
Drop a folder, get a clean ZIP back. Settings apply to every file.
JPG · PNG · WEBP
Convert formats and tune quality on the fly.
More image tools
Resize an image in three simple steps
Whether you need to shrink one screenshot or batch-resize a hundred product photos for your online store, the workflow is the same — and it takes seconds.
1. Upload your photos
Drag and drop up to 100 JPG, PNG, or WEBP images, or click Choose Images to pick them from your device. Everything stays on your computer — nothing is uploaded to a server.
2. Pick your size & format
Resize by width, height, or percentage. Optionally convert between JPG, PNG, or WEBP and adjust quality. Your settings apply to every image in the batch.
3. Download instantly
One image downloads as a single file. Multiple images come back as a clean ZIP — perfect for uploading to your store, blog, or social channels.
Smaller images, faster sites, happier visitors
Modern phones produce photos that are 4,000–6,000 pixels wide and weigh 5–10 MB each. Uploading those originals straight to your blog, online store, or marketing email is one of the most common reasons a page feels slow — and slow pages cost conversions, search rankings, and reader patience.
Resizing a photo to the actual dimensions it will be displayed at can shrink the file by 80–95%. The visual result looks identical to a viewer, but the page loads in a fraction of the time and uses far less bandwidth on mobile networks.
Faster page loads & better SEO
Google's Core Web Vitals reward pages that paint quickly. Right-sized images are the single biggest win for most websites.
Lower hosting & bandwidth costs
An online store with thousands of product photos can cut storage and CDN bills dramatically by serving correctly sized images.
Email attachments that actually send
Most providers cap attachments around 20–25 MB. A 5-photo batch from your phone is already over the limit at full size.
Consistent social media posts
Each platform crops differently. Resizing first means your subject stays centered on Instagram, Facebook, and LinkedIn alike.
Best image sizes for every platform in 2026
A quick cheat sheet of the most common social, web, and email dimensions. Match the target size in the resizer above, drop your photo in, and download.
- Square post1080 × 1080
- Portrait post1080 × 1350
- Story / Reel1080 × 1920
- Feed image1200 × 630
- Cover photo820 × 312
- Story1080 × 1920
X / Twitter
- In-stream image1600 × 900
- Header1500 × 500
- Shared image1200 × 627
- Cover1584 × 396
YouTube
- Thumbnail1280 × 720
- Channel art2560 × 1440
Web & Email
- Hero / blog image1600 × 900
- Email attachment≤ 1200 px wide
- Favicon512 × 512
JPG vs PNG vs WEBP — which should you choose?
The right format depends on what's in your image and where it will live. Here's a plain-English breakdown.
JPG (JPEG)
Best for
Photos, social posts, email attachments
Pros
Tiny file sizes, universally supported, ideal for photographic content with millions of colors.
Trade-offs
Lossy compression — repeated saves degrade quality. No transparency support.
PNG
Best for
Logos, icons, screenshots, anything with transparency
Pros
Lossless quality, sharp text and edges, full alpha transparency.
Trade-offs
Much larger files than JPG for photographs.
WEBP
Best for
Modern websites and apps where speed matters
Pros
25–35% smaller than JPG/PNG at the same quality, supports transparency and animation.
Trade-offs
Older software (very old email clients, legacy editors) may not open WEBP.
Quick rule of thumb: JPG for photos, PNG for graphics with transparency, and WEBP when page speed is the priority.
Read more on image sizing
How to resize photos for Instagram (2026)
Square, portrait, story, and reel dimensions explained — plus a step-by-step workflow for keeping faces and text safely inside the crop.
Read guide →
Compress vs resize — what's the difference?
Two related but distinct ways to shrink an image. Learn which one to reach for, and when combining both gives the best result.
Read guide →
The best image format for the web in 2026
A practical comparison of JPG, PNG, WEBP, and AVIF for blogs, online stores, and marketing sites.
Read guide →
Email attachment size limits & how to fix them
Why your photos won't send, the real Gmail and Outlook limits, and how to resize a batch in one go.
Read guide →
Frequently asked questions
Is iPhoto Resize really free?+
Yes — every feature on this page is 100% free with no hidden cost, no account, and no watermarks. We support the project through optional donations and tasteful advertising.
Are my images uploaded to a server?+
No. iPhoto Resize is a fully client-side tool. Your photos are processed in your own browser using the HTML5 Canvas API and never leave your device. That makes it safe for sensitive content like ID photos, contracts, or unreleased product shots.
How many images can I resize at once?+
You can drop up to 100 images per batch. All of them are resized with the same settings and packaged into a single ZIP file for download.
Which file formats do you support?+
JPG (JPEG), PNG, and WEBP — both as input and output. You can also convert between formats in one step (for example, convert PNG screenshots to lightweight WEBP).
Will resizing reduce my image quality?+
Reducing dimensions always discards some pixels, but our resampler is tuned to preserve sharpness. For photographs we recommend JPG quality 80–90, which usually looks indistinguishable from the original at a fraction of the size.
Can I enlarge a small image?+
You can scale up using the percent or width/height modes, but a browser-side resizer cannot invent detail. For best results, only enlarge by 1.5–2× and start from the highest-resolution copy you have.
Does this work on iPhone, iPad, and Android?+
Yes. iPhoto Resize is fully responsive and works in mobile Safari, Chrome, Firefox, and Edge. You can pick photos directly from your camera roll.
Do you keep any of my data?+
We do not store your images, and we do not require an account. See our Privacy Policy for the full details on cookies and analytics.
Still have a question? Get in touch.