Free Online Image Format Converter
Prompts.Skin Image Converter lets you change image formats directly in your browser — no software install, no account, and no server upload. Convert iPhone HEIC/HEIF photos to JPG or PNG for Windows compatibility, turn SVG vectors into raster images, export favicons as ICO, or switch between JPG, PNG, WEBP, and BMP. Adjustable quality for JPG and WEBP output. Batch convert multiple files and download individually or as a ZIP archive.
Why Use Prompts.Skin Image Converter
A privacy-first format converter built for creators alongside AI image tools.
100% Local Processing
Images never leave your browser. HEIC decoding and format conversion run on your device — ideal for personal photos and sensitive files.
Wide Format Support
Input: JPG, PNG, WEBP, GIF, BMP, HEIC, HEIF, SVG, ICO, AVIF, and more. Output: PNG, JPG, WEBP, BMP, ICO with quality control.
Batch Convert & ZIP
Upload multiple images, preview original vs converted results, and download all files in one ZIP.
Free, No Sign-up
Use the converter instantly without registration. Part of Prompts.Skin's free image utility suite.
Common Use Cases
iPhone HEIC to JPG
Convert HEIC/HEIF photos from iPhone to JPG or PNG so they open on Windows, Android, and websites that don't support Apple's format.
Web Optimization
Convert PNG or JPG to WEBP for smaller file sizes and faster page loads. Adjust quality to balance size and visual fidelity.
Design & Development
Rasterize SVG icons to PNG, export favicons as ICO, or convert between formats for design tools and CMS uploads.
Office & Sharing
Convert images to universally supported formats before emailing, printing, or uploading to forms and documents.
How to Convert Images in 3 Steps
- 1
Upload Images
Drag and drop or click to select images. HEIC, SVG, ICO, and common raster formats are all supported.
- 2
Choose Output Format
Select PNG, JPG, WEBP, BMP, or ICO. For JPG and WEBP, adjust the quality slider. Click Convert Images.
- 3
Preview & Download
Compare original and converted previews, download each file, or grab all results in a single ZIP.
Image Conversion FAQ
Answers to common questions about online image conversion on Prompts.Skin.
Are my images uploaded to a server?
No. All conversion happens in your browser using the Canvas API and heic2any for HEIC decoding. Your files stay on your device and are never sent to our servers.
Which image formats are supported?
Input: JPG, PNG, WEBP, GIF, BMP, HEIC, HEIF, SVG, ICO, AVIF, TIFF, and more. Output: PNG, JPG, WEBP, BMP, and ICO.
How do I convert iPhone HEIC photos?
Simply drop your .heic or .heif files into the converter. The tool decodes HEIC locally using heic2any, then re-encodes to your chosen format. No app install required.
Can I control JPG and WEBP quality?
Yes. When output format is JPG or WEBP, use the quality slider (10%–100%). Higher values mean better quality and larger files. Default is 90%.
Can I convert multiple images at once?
Yes. Upload several files, convert them in one click, and download individually or as a ZIP archive.
Can I convert SVG to PNG or JPG?
Yes. SVG files are rasterized in your browser at their native dimensions. For very large SVGs, conversion may take a moment.
How does ICO export work?
When you choose ICO as output, the tool generates a multi-resolution icon (16–256 px) suitable for favicons and Windows icons.
Do I need to register or pay?
No registration or payment is required. The image converter is free to use on Prompts.Skin.