Convert images between JPG, PNG, and WebP
Free image format converter. No upload, no signup. Files never leave your device.
How to use the image converter
- 1
Drop your images
Drag and drop one or more images into the box, or click to browse.
- 2
Pick the target format
Choose WebP for smaller files, JPG for universal support, or PNG for lossless output.
- 3
Adjust quality if needed
Lower quality means smaller files. PNG is always lossless and ignores the slider.
- 4
Download
Each converted image is ready to download instantly. Files never leave your browser.
When to convert formats
WebP is the modern choice — about 25-35% smaller than JPG at the same quality, and it supports transparency like PNG. Every modern browser supports it. Use WebP for websites, blogs, and any place you control.
JPG is universal. Old apps, email clients, government portals, and printers all accept JPG. Use it when you do not know what the recipient supports.
PNG is lossless and supports transparency. Use it for screenshots, logos, line art, and any image where you cannot afford visible compression artifacts.
Fileoholic converts between all three using the browser's Canvas API. The conversion happens locally — your image never leaves your device.
Your files never leave your browser.
All processing runs locally on your device. No uploads, no tracking of file content.
FAQ
JPG vs PNG vs WebP — which should I pick?
Use JPG for photos when the recipient or app might be old. Use PNG when you need transparency or perfect quality. Use WebP for best size/quality balance on modern browsers and websites.
Will JPG keep transparent backgrounds?
No. JPG does not support transparency. Transparent areas in PNG or WebP are filled with white when converting to JPG.
Are my files uploaded anywhere?
No. The conversion runs entirely in your browser using the Canvas API. Nothing is sent to a server.
What is the maximum file size?
30 MB per file. Mobile browsers may have less memory available.
Can I convert HEIC files here?
HEIC needs a separate decoder. Use our HEIC to JPG tool instead.
Need batch processing or AVIF support?
For desktop batch image conversion, see Adobe Photoshop or Canva Pro. Disclosure: contains affiliate links. We may earn a commission at no extra cost to you.
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Last updated: 2026-05-08