JPG to GIF Converter
Convert JPG to GIF in your browser. JPG files usually come from cameras, phones, scanners and almost every app that saves photos; GIF is the better fit for short animations and reactions that must play everywhere. You get a GIF with an optimised palette of up to 256 colours per frame, dithered. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
JPG expected · other image formats also work
How to use JPG to GIF
- 1
Add your JPG files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the GIF is written losslessly. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .gif files one at a time or together as a ZIP.
Why use Aback Images for jpg to gif
Where the GIF goes next
GIF opens in every browser, operating system, chat app and editor.
GIF next to JPG
The GIF keeps the decoded pixels without lossy compression, so expect it to be larger than the JPG.
No new artefacts
JPG is already lossy, since it stores lossy DCT coding in 8×8 pixel blocks, with colour usually stored at half resolution; the GIF keeps the decoded pixels losslessly, so this step adds no compression damage of its own.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
JPG vs GIF
What changes from JPG to GIF
Encoding: the JPG uses lossy DCT coding in 8×8 pixel blocks, with colour usually stored at half resolution; GIF uses lossless LZW over a palette of at most 256 colours, and the download is a GIF with an optimised palette of up to 256 colours per frame, dithered.
Bit depth: 8 bits per channel in the JPG; GIF allows 8 bits per pixel, as indexes into a palette, and the GIF written here has 8 bits per pixel (palette).
Colour: YCbCr shown as RGB, greyscale, or CMYK from print software in the JPG; GIF supports an indexed palette of up to 256 colours per frame, written here as an indexed palette of up to 256 colours.
Metadata: the JPG can carry EXIF (camera, date, GPS), XMP, IPTC and an ICC profile in APP segments; GIF can carry comment and application extension blocks, but no EXIF, but nothing is copied across.
About JPG
JPEG is the universal photo format. It compresses by discarding fine detail the eye is least sensitive to, which makes photos small but blurs sharp edges and text if pushed too far.
A JPEG starts with the bytes FF D8 and is a run of marker segments: APP1 carries EXIF and often a thumbnail, APP2 an ICC profile, DQT the quantization tables that decide the quality, and SOS the compressed scan, which ends at FF D9.
JPG files usually come from cameras, phones, scanners and almost every app that saves photos.
About GIF
GIF is the classic animated image format. It is limited to 256 colours per frame and 1-bit transparency, so photos look grainy and files are large, but it plays everywhere.
A GIF starts with 'GIF89a' (or the older 87a), a logical screen descriptor and an optional global colour table, then image blocks, each preceded by a graphic control extension that sets its delay and transparent colour.
When converting JPG to GIF makes sense
GIF is the better choice for short animations and reactions that must play everywhere, while JPG suits photographs that need to open anywhere.
GIF strengths: Animation that works everywhere; Simple, universally supported; Good for small flat graphics. Drawbacks to weigh: Only 256 colours per frame; Hard-edged transparency only; Large files for photos or long clips.
Limitations
- JPEG artefacts already in the file, such as blocking near edges and smeared colour, are kept as pixels: a lossless target preserves them faithfully rather than removing them.
- GIF holds at most 256 colours per frame, so JPG colour is reduced and gradients are dithered.
- GIF stores at most 256 colours per frame, so photographs show dithering or banding.
- GIF transparency is all or nothing per pixel, so soft shadows and anti-aliased edges get a hard fringe.
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Frequently asked questions
Does converting JPG to GIF lose quality?
GIF is written losslessly, so the pixels are stored exactly as decoded. Artefacts already in the JPG stay, but nothing new is lost.
Which apps open GIF files?
Every browser, operating system, chat app and editor.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.