Convert AVIF to JPG — Free Online
Convert AVIF images to widely compatible JPG format. No upload, no signup — runs 100% in your browser.
AVIF is a next-generation image format with excellent compression, but browser and software support is still catching up. This converter transforms AVIF images into universally compatible JPG — perfect for sharing, printing, or uploading to platforms that don't yet support AVIF.
Drop images to convert
HEIC, WebP, PNG, JPG, BMP, GIF, AVIF, TIFF • Max 100MB
How It Works
Convert images between all major formats using your browser's native Canvas and encoding APIs. This tool is one of the few browser-based converters that supports Apple's HEIC/HEIF format — the default photo format on every iPhone since iOS 11. Drop your HEIC files and get JPGs instantly, with no app install and no server upload.
The conversion process works by decoding your source image into raw pixel data, then re-encoding it in the target format using the browser's built-in image codecs. For standard formats (PNG, JPG, WebP, BMP), this uses the native Canvas API. For HEIC/HEIF files — which browsers don't natively support — the tool uses a JavaScript-based HEIF decoder that parses the Apple container format and extracts the image data.
Batch conversion support lets you process dozens or hundreds of images at once. Drop all your files, select the target format, adjust quality if needed, and convert everything with a single click. Each converted image maintains its original pixel dimensions and color accuracy.
The entire conversion pipeline runs locally in your browser. No images are uploaded to any server, no account is required, and there are no limits on file count or total size. The output files are standard format images that work universally across all devices, applications, and platforms.
Features
- ✓Full HEIC/HEIF support — convert iPhone photos to JPG, PNG, or WebP instantly without any app install
- ✓Batch conversion — process dozens or hundreds of images at once with consistent settings
- ✓Wide format support: HEIC, HEIF, WebP, AVIF, PNG, JPG/JPEG, and BMP input
- ✓Output to PNG (lossless), JPG (lossy, adjustable quality), WebP (modern, smaller), or BMP (uncompressed)
- ✓Adjustable output quality slider for lossy formats with real-time file size preview
- ✓Preserves original image dimensions, color accuracy, and aspect ratio
- ✓Download individual converted files or all at once via bulk download
- ✓Zero uploads, zero accounts, unlimited free conversions
How to Use This Tool
- Upload your images by drag-and-drop or file picker. The tool accepts HEIC, HEIF, WebP, AVIF, PNG, JPG, and BMP files. Batch upload is fully supported.
- Select your target output format from the dropdown: PNG (lossless), JPG (universal lossy), WebP (modern, smaller), or BMP (uncompressed).
- For lossy formats (JPG, WebP), adjust the output quality slider to balance file size against visual fidelity. Preview the compressed size in real time.
- Click "Convert" and download each converted image individually or use the bulk download option to get all files at once.
Perfect For
- →iPhone and iPad users converting HEIC photos to JPG or PNG for sharing with Windows and Android users who can't open HEIC natively
- →Web developers batch-converting images to WebP format to reduce page load times and improve Core Web Vitals scores
- →Designers converting between PNG and JPG depending on whether transparency support is needed for a specific project
- →Photographers converting AVIF or WebP exports from modern editing software to universally compatible JPG for client delivery
- →Email users converting large PNG screenshots to compressed JPG to stay under email attachment size limits
- →Content creators converting images to web-optimized formats before uploading to WordPress, Squarespace, or Wix
- →App developers converting interface mockups and screenshots between formats for documentation and app store submissions
- →Android users converting HEIC files received from iPhone users into viewable JPG or PNG format
Under the Hood
The converter uses a two-stage pipeline. For standard formats (PNG, JPG, WebP, BMP), the browser's native Image element decodes the source, the Canvas API captures the raw pixel data (RGBA bitmap), and canvas.toBlob() re-encodes it in the target format using the browser's built-in codecs. This is fast, reliable, and produces standards-compliant output.
HEIC/HEIF conversion requires a different approach because browsers don't natively support Apple's container format. The tool includes a JavaScript-based HEIF parser that reads the ISO Base Media File Format (ISOBMFF) container, extracts the HEVC-compressed image data, and decodes it to raw pixels using a WASM-compiled decoder. The decoded pixels are then rendered to a canvas for re-export in the target format.
AVIF support follows a similar pattern — a JavaScript/WASM decoder handles the AV1 image decompression, while the Canvas API handles the re-encoding. All decoders and encoders run locally in the browser sandbox with zero network dependency.