# Image Resizer

> Resize images by size, percentage or a social-media preset visually in the interactive UI editor or in bulk.

To resize an image, add your files and either pick a preset - Instagram, Story, Open Graph, YouTube thumbnail, 4K, app icon — or set a custom size. Presets scale and centre-crop to fill the exact dimensions. Everything runs in your browser, so nothing is uploaded and batches are unlimited.

**URL:** https://convertto.tech/t/image-resizer
**Category:** Image Tools (https://convertto.tech/c/image-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Presets:** 13 social, video, icon and commerce sizes
- **Modes:** Fit, cover-and-crop, exact, width, height, percentage
- **Batch:** Unlimited files, downloaded as a ZIP
- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Select your images — the file stays on your device and is never uploaded.
2. Choose the preset.
3. Choose the resize by.
4. Set the width.
5. Set the height.
6. Set the scale.
7. Choose the output format.
8. Press Run, then download the result when it is ready.

## FAQ

### What is the difference between Fit and Cover?

Fit scales the whole image to sit inside your box, so the result may be smaller than the target in one dimension. Cover scales to fill the box completely and centre-crops the overflow, which is what social platforms expect. Presets use Cover.

### Will resizing reduce quality?

Making an image smaller is essentially lossless in perceived quality. Enlarging beyond the original resolution cannot add detail that was never captured, so it will look soft.

### Which size should I use for a link preview?

The Open Graph preset at 1200 - 630. That ratio renders correctly on Facebook, LinkedIn, X and Slack without being cropped unpredictably.

## Related tools

- [Aspect Ratio Calculator](https://convertto.tech/t/aspect-ratio-calculator): Work out the aspect ratio of any dimensions and scale them proportionally.
- [Image Cropper](https://convertto.tech/t/image-cropper): Crop images visually with drag handles, aspect-ratio presets and a live preview.
- [Image Upscaler](https://convertto.tech/t/image-upscaler): Drop an image, see its current size auto-detected, set your target width, height or file size and enlarge.
- [Resize PDF Pages](https://convertto.tech/t/resize-pdf-pages): Scale every page of a PDF to a standard paper size so it prints consistently.
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- [EXIF Remover](https://convertto.tech/t/exif-remover): Strip all metadata — including GPS location — from photos before sharing them.
- [Favicon Generator](https://convertto.tech/t/favicon-generator): Turn any image into a complete favicon set with all the sizes modern browsers expect.
- [Add a Border to an Image](https://convertto.tech/t/image-border): Add a solid, gradient or photo-style border, and round the corners of any image.