Are my images uploaded to a server?

No. The entire conversion runs inside your browser using the HTML5 Canvas API and the gif.js encoder loaded from a CDN. Your image file never leaves your device.

Why does the GIF look different from the original JPG?

GIF supports a maximum of 256 colors, so photos with gradients will have their palette reduced, which can cause visible color banding or dithering. Flat-color graphics such as logos and icons convert with minimal quality loss.

What image formats can I upload?

You can upload JPG (JPEG) and PNG files. Both are accepted and converted to GIF format.

How does the width control work?

Enter a target pixel width and the tool calculates the height automatically to preserve the original aspect ratio. Leave the width at its default to use the image's original dimensions.

Does GIF support transparency?

GIF supports only 1-bit transparency. Semi-transparent pixels in PNG inputs will be composited onto a white background before conversion.

Is there a file size limit?

The limit is your browser's available memory. Very large images may be slow to encode on low-end devices. Images under 4000 x 4000 pixels work reliably in all modern browsers.

Which browsers are supported?

All modern browsers — Chrome, Edge, Firefox, and Safari 14+. The Canvas API and Blob downloads are universally supported.

JPG to GIF Converter

Name: JPG to GIF Converter
Availability: InStock
Author: Nham Vu

Upload a JPG or PNG image, set an output width, and download it as a GIF — converted locally in your browser, nothing sent to any server.

Upload Image

Click or drag a JPG / PNG here

JPG and PNG files accepted

Conversion Options

Output Width (px)

Height is calculated automatically to maintain aspect ratio. Leave blank to use original dimensions.

Floyd-Steinberg Dithering

Reduces color banding on photos; disable for flat logos

Note: GIF supports a maximum of 256 colors. Photos and images with gradients may show color banding or dithering compared to the original.

GIF Preview

Upload a JPG or PNG to get started

Then click "Convert to GIF"

Downloaded!

Summary

Upload a JPG or PNG image, set an output width, and download it as a GIF — converted locally in your browser, nothing sent to any server.

How it works

Select or drag a JPG or PNG image onto the upload area.
Optionally set a target output width; height is calculated automatically.
Click "Convert to GIF" to start the in-browser encoding process.
A progress indicator appears while gif.js encodes the image.
Once complete, review the GIF preview and click "Download GIF" to save the file.
No data is sent to any server — conversion runs entirely on your device.

Use cases

Convert JPG photos to GIF for platforms or email clients that require it.
Resize and convert images to GIF in a single browser step.
Produce a GIF version of a logo or banner for legacy compatibility.
Reduce color depth for stylized or pixel-art images.
Process images privately without uploading to a third-party service.
Prepare images for forums or systems that only accept GIF uploads.
Generate flat-palette versions of photos for stencil or print work.
Convert screenshots to GIF for simple documentation thumbnails.

Frequently Asked Questions

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Last updated: 2026-05-29 · Reviewed by Nham Vu