JPG Won't Open? Convert to QOI Instantly
Fast, instant JPG to QOI conversion. No signup required. Just drop your .jpg file and get .qoi in seconds.
Batch Settings
Na era digital em que vivemos, a gestão e partilha de imagens são cruciais, seja para documentos bancários, criação de conteúdo ou simplesmente para otimizar o espaço no seu telemóvel. O formato JPG é amplamente conhecido e utilizado, mas nem sempre é o mais eficiente para todas as necessidades. É aqui que entra o QOI (Quite OK Image Format), uma alternativa que promete compressão sem perdas, rapidez e eficiência, ideal para quem busca otimização sem sacrificar a qualidade visual. Converter as suas imagens JPG para QOI significa beneficiar de ficheiros mais leves, que carregam mais rapidamente e ocupam menos espaço de armazenamento, uma vantagem significativa tanto para o seu dispositivo móvel quanto para plataformas online. Descubra como esta conversão pode simplificar o seu dia a dia digital, garantindo que as suas imagens estejam sempre prontas, rápidas e com a máxima qualidade.
- Digitalização de documentos bancários
- Otimização de fotos para redes sociais
- Armazenamento eficiente em telemóveis
Em Portugal e no Brasil, onde a velocidade da internet móvel pode variar e o armazenamento em dispositivos é um fator, a eficiência do QOI pode ser particularmente benéfica para o utilizador comum.
About JPG to QOI Conversion
Dealing with a JPG file that won't open on your device? You're not alone — JPG compatibility issues are one of the most common reasons people search for a file converter. JPG (JPEG) uses lossy compression, making it ideal for photographs and complex images where small file size matters more than pixel-perfect quality.
The fix is simple: convert your JPG to QOI. QOI is a widely used file format. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting JPG to QOI maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your JPG file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you When you need a QOI file.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert JPG to QOI
- 1
Add your JPG file
Drag and drop your .jpg file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick QOI output
Select .qoi as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .qoi file. For batch jobs, download all at once as a zip.
What Happens When You Convert JPG to QOI
Your JPG file is decoded and re-encoded as QOI.
Your JPG file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in QOI format
The converted file is ready for download
Format Comparison
JPG
.jpg file
| Extension | .jpg |
| MIME Type | image/jpeg |
| Category | Image |
QOI
.qoi file
| Extension | .qoi |
| MIME Type | image/qoi |
| Category | Image |
Should You Convert JPG to QOI?
When to Convert
- ✓When you need a QOI file
Frequently Asked Questions
Why won't my JPG file open?
JPG files may not open if your device lacks the right codec or application. Converting to QOI — a more widely supported format — usually resolves this. QOI is a widely used file format.
Is it safe to convert JPG to QOI online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting JPG to QOI?
Converting JPG to QOI maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my JPG file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert JPG to QOI on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.