Image Converter
On-deviceConvert photos between JPEG, PNG, WebP and AVIF — right on your device.
Convert JPEG, PNG, WebP, AVIF and HEIC photos to any of those formats, right on your device. Pick the output format first, then adjust quality or resize if you want, and download one file or all as a ZIP. Nothing is uploaded.
About this tool
What you provide
- JPEG, PNG, WebP, AVIF or HEIC images, one at a time or in bulk
- An output format: JPEG, WebP, AVIF, PNG, or Keep to leave the format unchanged
- A quality level and an optional maximum dimension in pixels
What you get
- A converted image per file, in the format you chose, with its before and after size
- All the results together as compressed-images.zip
Limits
- Up to 100 images and 200 MB in total per batch, because it all runs in your device's memory.
- HEIC photos are always converted to another format — new HEIC files cannot be created here.
- Picking a specific output format always produces that format, even if the result is larger than the original; only Keep can fall back to the original file.
- AVIF encoding is slow on phones.
How to use it
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Add your images
Drop JPEG, PNG, WebP, AVIF or HEIC images onto the dropzone, or tap to choose files, and use Add more images to add to the batch.
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Pick the output format
Choose JPEG, WebP, AVIF or PNG — or Keep to leave the format as it is — from the Output format select, shown first for this tool.
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Adjust quality and size, if you want
Drag the Quality slider or type a number in Max dimension in px; both are optional and apply to every image in the batch.
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Convert and save
Tap Convert; each row shows its before and after size, and you save one row at a time or use Save all (ZIP).
Frequently asked questions
How do I convert a PNG to JPG (or any other format)?
Add your images, pick the output format you want from the Output format select, and tap Convert. Each image downloads in that format, individually or all together as a ZIP.
Are my images uploaded when I convert them?
No. Conversion happens entirely on your device — your images never leave your device.
What's the difference between this and Compress Images?
Both tools share the same engine. This one puts the output format first for changing file types; Compress Images puts quality first for shrinking file size. Either tool can do both.
Can I convert HEIC photos from my iPhone here?
Yes, to JPEG, PNG, WebP or AVIF. For a dedicated HEIC-to-JPG workflow with no other formats to pick between, HEIC to JPG is a simpler tool.