> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bibigpt.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Free Online Image Resizer

> Resize any JPEG, PNG, or WebP image to exact pixel dimensions right in your browser. Use social media presets for Instagram, Twitter, YouTube, and more — no upload to servers, no sign-up required.

## Overview

The free online image resizer lets you resize JPEG, PNG, WebP, and BMP images to exact pixel dimensions right in your browser. Built-in social media presets for Instagram, Twitter, YouTube, and more give you platform-recommended resolutions in one click. Everything runs locally — your files never leave your device.

## Pain Point

Creating covers for social media, e-commerce product images, or profile pictures means dealing with different size requirements for every platform — and opening Photoshop just to change a resolution is overkill. This tool handles it in seconds with zero software to install.

## Key Features

* Exact pixel control: set custom width and height down to the pixel
* Social media presets: Instagram post/story, Twitter header, YouTube thumbnail, and more
* 100% browser-based, no server upload, no watermark
* High-quality output: smart scaling keeps images sharp after resizing
* Supports JPEG, PNG, WebP, and BMP formats
* Instant preview: see results in real time as you adjust parameters

## Highlights

Open the page, drop in an image, pick a size, download — the entire flow takes just seconds. Unlike full-featured image editors, this tool focuses on the single most common task — resizing — and gives you the shortest path to get it done. Built-in presets for major platforms save you from looking up recommended dimensions.

## Use Cases

* **Social media covers**: Quickly generate correctly sized cover images for Instagram, Twitter, YouTube, and more
* **E-commerce product images**: Resize product photos to platform-standard dimensions for optimal display
* **Profile picture adjustments**: Resize photos to the recommended resolution for any platform's avatar
* **Blog and website images**: Standardize article images for clean, consistent page layouts
* **Slides and documents**: Resize images to fit presentation or document layouts

## Tips

* Check your target platform's recommended dimensions first, or use the built-in presets
* Scaling up may reduce quality — prefer downsizing from larger originals
* Need to reduce file size further? Pair with BibiGPT's [image compressor](https://bibigpt.co/features/free-online-image-compressor)

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**Related**: [Free Online Image Compressor](https://bibigpt.co/features/free-online-image-compressor) — Try it now

**Upgrade to Pro**: Unlock unlimited access → [View Pricing](https://bibigpt.co/pricing)

## Related Features

<CardGroup>
  <Card title="Free Image Compressor" href="/en/function-usage/platform-function/free-online-image-compressor" />

  <Card title="Free Video Cropper" href="/en/function-usage/platform-function/free-online-video-cropper" />

  <Card title="Free Video Format Converter" href="/en/function-usage/platform-function/free-online-video-format-converter" />
</CardGroup>