Convert Image
Quick start
Done in 4 steps
- 1
Upload your image
Drop in a JPEG, PNG or WebP file up to 20 MB. It is opened locally — nothing is uploaded.
- 2
Choose the output format
Pick JPEG for the smallest files, PNG to keep transparency, or WebP for the best of both.
- 3
Convert
The image is re-encoded at exactly its original pixel dimensions — nothing is cropped or resized.
- 4
Download
Your converted image downloads instantly in the new format.
- 1
Upload your image
Drop in a JPEG, PNG or WebP file up to 20 MB. It is opened locally — nothing is uploaded.
- 2
Choose the output format
Pick JPEG for the smallest files, PNG to keep transparency, or WebP for the best of both.
- 3
Convert
The image is re-encoded at exactly its original pixel dimensions — nothing is cropped or resized.
- 4
Download
Your converted image downloads instantly in the new format.
Frequently asked questions
- Will converting change my image dimensions?
- No. Convert Image keeps the exact original width and height — only the file format changes. Use Resize Image if you also want to change the dimensions.
- Is my image uploaded to a server?
- No. All processing happens locally in your browser using a Web Worker and the Canvas API. Your image never leaves your device.
- Which format should I choose?
- JPEG gives the smallest files for photographs but has no transparency. PNG preserves transparency and sharp edges (logos, screenshots) at a larger file size. WebP is a modern format that usually beats both at the same quality.
- Will converting a PNG with transparency to JPEG lose the transparent background?
- Yes — JPEG has no alpha channel, so transparent areas are filled with white before conversion. Keep the format as PNG or WebP if you need to preserve transparency.
- Is this tool free?
- Yes, completely free with no sign-up, no watermark, and no daily limit.
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