Image Resizer — Back to Video & Audio

Part of FreeOnlineConverters.cc — Resize JPG, PNG, WebP, AVIF, GIF, SVG and HEIC, convert, crop, rotate, batch ZIP. ← Back to Video/Audio Converter
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Upload Image(s)

Drag & drop JPG, PNG, WebP, AVIF, GIF, SVG or HEIC files (Batch supported)

Drop, paste (Ctrl/Cmd+V), or select images.

How It Works Full Guide

1

Upload

Select single or multiple files.

2

Adjust

Customize dimensions & format.

3

Preview

Real-time client-side preview.

4

Download

Export individually or as ZIP.

Edited image preview
Upload an image to begin.

Batch Results

Image Settings

Image Fit

Resize and convert formats seamlessly.

Privacy Notice: EXIF metadata (GPS, camera info) is automatically stripped upon conversion for security and reduced file size. Animated GIFs are flattened to a single frame. AVIF uses a local WASM encoder (slower, often much smaller files).
Current rotation: 0°
Fine Straighten
0°
92%

Lower quality reduces file size. Applies to JPG and WebP.

Preview file size: —
Original file—
Estimated output—
Savings: —
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Web Worker Accelerated

Offloads heavy image processing and compression off the main UI thread for max speed.

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Batch Processing

Resize, convert, and compress multiple images simultaneously and download as a ZIP.

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100% Private

Files are processed purely in local browser memory. Zero server uploads.

Learn How to Resize, Convert & Crop Like a Pro

Step-by-step tutorial with examples, tips for social media sizes, format comparison (JPG vs PNG vs WebP vs AVIF), and batch workflow.

Read the Complete Guide →

Frequently Asked Questions

Common answers regarding functionality and privacy.

Is ResizeFlow completely free?

Yes, all single and batch editing features are 100% free with no hidden fees or sign-ups.

Are my images uploaded to any server?

No. Operations run entirely within your local browser memory via HTML5 Canvas and Web Workers.

Can I convert multiple HEIC files at once?

Yes. You can batch upload HEIC photos from iOS devices and convert them all directly into JPG, WebP, or AVIF.

Do animated GIFs keep their animation?

No. Editing runs through HTML5 Canvas, so animated GIFs are processed as a single static frame.

What is AVIF and why is it slower?

AVIF often produces files 40–50% smaller than JPEG at similar quality. Encoding runs locally via WebAssembly, which is slower than JPG or WebP but keeps processing private in your browser.

Browser compatibility: ResizeFlow works best in current Chrome, Edge, Firefox, and Safari. HEIC/HEIF conversion and some features may depend on browser support and memory. Animated GIFs export as a single frame. AVIF export loads a WASM encoder on first use. New to image editing? See our how to resize, convert & crop guide.