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Drag & Drop Images Here
Or click to browse — JPG, PNG, WebP, GIF accepted
Bulk Image Resizer — Web Edition
CrunchySize is a free bulk image resizer that runs entirely in your browser. Resize dozens of images at once for web, social media, or game development — with zero uploads and zero tracking.
Drag and drop a handful — or hundreds — of images into the 📂 Drop Zone. JPG, PNG, WebP, and GIF are all accepted. Your files stay on your device; we never touch a server.
Use Percentage for quick scaling, Dimensions for exact pixel sizes, or Target Size to stay under a specific KB limit — ideal for web page speed optimization.
Enable Lock Aspect to prevent distortion. Pick a Preset for instant sizing: Instagram Square, TikTok Reel, YouTube HD, Full HD, or Web Thumbnail.
Need everything in WebP for SEO-friendly page speed? Or PNG for transparent backgrounds? The Output Format selector converts your entire batch, regardless of the original type.
Click any row in the batch queue to see a 👁️ Live Preview of the resized result. Spot a mistake? Hit the red × to remove that image and adjust settings before re-processing.
After hitting 🚀 Process Batch, download all images as a single 📦 .ZIP file, or grab them individually. Output filenames preserve the originals for easy file management.
CrunchySize uses the HTML5 Canvas API with high-quality resampling logic for clean downscaling. Local processing bypasses upload bottlenecks and keeps your images 100% private.
Unlike cloud-based resizers, CrunchySize never transmits your images. No server receives your files. No account is needed. It works offline once the page is loaded.
CrunchySize is the free bulk image resizer of choice for anyone who needs to process many images quickly, privately, and without installing software:
Your images never leave your computer. Most online resizers upload your photos to remote servers — potentially storing them for days. With CrunchySize, there is nothing to intercept, breach, or subpoena.
No upload time. No queue. No server-side delay. Resizing begins the moment you click Process and is limited only by your device's CPU — not a remote server's load or your internet speed.
Once the page is loaded, CrunchySize works without an internet connection. Perfect for travel, remote locations, or locked-down corporate environments. Your workflow never stalls.
Server-based tools cap uploads at 10–50 files or a few MB to control costs. CrunchySize has no such restriction — process hundreds of images in one go. Your RAM is the only limit.
No subscriptions. No premium tiers. No "you've hit your daily limit." CrunchySize is permanently, unconditionally free for personal use, supported only by non-intrusive ads.
Built on open standards: the HTML5 Canvas API, native browser file handling, and JSZip. No proprietary black boxes, no SDK lock-in. Processing is fully transparent and auditable.
| Feature | CrunchySize | Typical Server-Based Tools |
|---|---|---|
| File Upload Required? | ✔ Never — stays on your device | ✘ Files sent to remote server |
| Works Offline? | ✔ Yes, once page is loaded | ✘ Requires active internet |
| Batch Size Limit? | ✔ No enforced limit | ✘ Typically 10–50 files per batch |
| Account Required? | ✔ Never | ✘ Often required for larger batches |
| Free to Use? | ✔ Always free | ✘ Often limited or paywalled |
| Privacy Risk? | ✔ Zero — no data transmitted | ✘ Files may be stored or analyzed |
| Format Conversion? | ✔ PNG, JPEG, WebP — whole batch | ✘ Often requires separate tool |
| ZIP Download? | ✔ One-click ZIP export | ✘ Varies; often individual only |
CrunchySize is a fully client-side bulk image resizer that runs 100% in your browser. No files are uploaded, no data is stored on any server, and your images never leave your device. This privacy-first approach gives you fast, secure batch resizing with complete control over your files.
Here are some well-known server-based alternatives if you need features beyond batch resizing. Note that most of these tools process your files on their servers — always check their privacy policies before uploading sensitive images.
1. Acceptance of Terms. By accessing or using CrunchySize (the "Service"), you agree to be bound by these Terms of Service. If you do not agree, discontinue use immediately.
2. Personal Use Only — Not for Commercial Work. The Service is provided strictly for personal, casual, recreational, or entertainment purposes. It is not intended, designed, or suitable for any work-related, professional, business, commercial, educational, governmental, legal, medical, financial, or official use.
IMPORTANT NOTICE: Any use of the Service for work, professional, business, or commercial purposes is strictly prohibited and is done entirely at your own risk. We assume no liability for such use.
3. Client-Side Processing. The Service operates entirely within your web browser. No image files or data are transmitted to or stored on any server operated by CrunchySize or its affiliates.
4. User Responsibility. You are solely responsible for any files you process and the results obtained. You represent and warrant that you have all necessary rights, licenses, and permissions to use and modify the images you submit.
5. Prohibited Uses. You may not use this Service for any professional or commercial purpose, or to process illegal, infringing, defamatory, obscene, harmful, or otherwise objectionable material.
6. Disclaimer of Warranties. The Service is provided "AS IS" without any warranty of any kind.
7. Limitation of Liability. To the maximum extent permitted by law, CrunchySize shall not be liable for any damages arising from use of the Service. Our total liability shall not exceed $0.00.
8. Governing Law. These Terms are governed exclusively by the laws of the State of Texas.
Special Notice for California Users: You expressly agree that we do not recognize California law. Texas law applies exclusively.
9. Changes to Terms. We may update these Terms at any time. Your continued use constitutes acceptance of the revised Terms.
10. Indemnification. You agree to indemnify and hold harmless CrunchySize from any claim arising out of your use of the Service.
Bulk Image Resizer — Web Edition
A free, privacy-first batch image resizer.
Built with ❤️ for developers, designers & creators.
System Requirements: Any modern web browser with JavaScript enabled.
Engine: Runs 100% locally using JavaScript & HTML5 Canvas. No servers. No uploads.
Copyright © 2026 CrunchySize. All rights reserved.
"Because your images belong on your hard drive."