Format convert

Convert images to PNG, JPEG, WebP, AVIF, BMP and more right in your browser — nothing uploaded.

About Format convert

Convert images to PNG, JPEG, WebP, AVIF, BMP and more right in your browser — nothing uploaded.

How to Convert Image Formats Online Without Uploading

Convert between HEIC, PNG, JPG, WebP, and AVIF in 3 easy steps.

  1. 1Select your source image file from your device.
  2. 2Choose the desired target format (PNG, JPEG, WebP, AVIF, BMP) and adjust quality.
  3. 3Click export to convert and download on-device instantly.

Tool facts

Processing
Runs locally in your browser. Source files are not uploaded to NanoPix for editing.
Available controls
Import any image format (HEIC included) · Pick target format (PNG/JPEG/WebP/AVIF/BMP) · Adjust quality for lossy formats (JPEG/WebP/AVIF) · Export and download
Output
Export the converted image

Frequently asked questions

What can Format convert do?
Convert images to PNG, JPEG, WebP, AVIF, BMP and more right in your browser — nothing uploaded.
Can iPhone HEIC photos be converted to universal JPG or PNG?
Yes. iPhone HEIC images often fail to open on Windows or Android. NanoPix includes client-side libheif WebAssembly to convert HEIC to standard JPG, PNG, or WebP right inside your browser.
What are the benefits of converting to WebP or AVIF?
WebP and AVIF are modern next-generation web image formats. They provide the same visual quality as JPEG with 30% to 50%+ smaller file sizes, making them perfect for fast website loading.
Are my files uploaded to your servers?
No. NanoPix runs in your browser with WebAssembly. Your video, audio, or image files stay on your device—we never receive them.
Is browser-based editing private?
Yes. Processing happens locally on your machine. Nothing is sent to NanoPix servers for encoding or storage.
Is this tool free?
Yes. NanoPix tools are free to use in a modern browser. No account is required for basic editing and export.