Image Converter: HEIC, JPG, PNG, WebP & AVIF Online
Image converter online: batch convert between HEIC, JPG, PNG, WebP, AVIF, and ICO formats with adjustable quality for any project.
Updated 2026-08-16
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Features
- Convert images between HEIC, JPG, PNG, WebP, AVIF, and ICO formats instantly
- HEIC/HEIF input support: convert iPhone photos directly in browser
- AVIF output support: next-gen format with best compression ratio
- Adjustable quality slider for JPEG, WebP and AVIF output (0–100%)
- Quality presets for quick optimization: Smallest, Web, Balanced, High
- Multi-size ICO output: generates 16×16 to 256×256 in one file
- Batch processing: open and convert multiple images at once
- Save all converted images as a ZIP archive
- Paste from clipboard (Ctrl+V) for instant conversion
- Supports input: HEIC, HEIF, JPG, PNG, WebP, GIF, BMP, SVG
- No file size limits on input images
How to Use
- 1Open images by clicking the drop area, dragging files, or pasting from clipboard (Ctrl+V).
- 2Select the target output format from the sidebar: JPG, PNG, WebP, AVIF, or ICO.
- 3Adjust quality using the slider or choose a preset (Smallest, Web, Balanced, High) for quick optimization.
- 4Enable Multi-size ICO if converting to ICO format for maximum favicon compatibility.
- 5Images convert automatically on opening; review the results in the list.
- 6Save individual images, or click Save All to save everything as a ZIP archive.
- 7How to convert HEIC photos from iPhone to JPG: open your HEIC files from iPhone, select JPG as the target format, adjust quality to 85-90%, and save individually or as a ZIP batch.
- 8How to generate a multi-size favicon ICO file: open a square PNG logo, select ICO as output format, enable the Multi-size ICO option. The tool generates a single .ico file containing sizes from 16×16 to 256×256 for maximum favicon compatibility across browsers and devices.
Frequently Asked Questions
Which image formats are supported for input?
The tool accepts JPG/JPEG, PNG, WebP, GIF (first frame only), BMP, SVG, HEIC, and HEIF files as input. These are all formats that the browser can render. For output, you can choose between JPG, PNG, WebP, AVIF, and ICO.
What is multi-size ICO and when should I use it?
Multi-size ICO generates a single .ico file containing multiple image sizes: 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256. This is the standard format for favicon files, as different contexts (browser tabs, taskbar, start menu) use different sizes. Enable 'Multi-size ICO' when converting to ICO for maximum compatibility.
Why did my image get bigger after converting formats?
Usually because of the output format: PNG is lossless, so the same image in PNG is typically several times larger than in JPEG or WebP; a bigger file after converting from JPG to PNG is expected. JPEG and WebP let you control size with the quality slider (80–90% is a good size/quality balance), while PNG has no quality parameter. For smaller files, export as JPEG or WebP, or downscale the image first.
Why does my transparent background turn white after converting to JPEG?
Because JPEG does not support transparency; transparent areas are filled with white when converting to JPEG. Converting to PNG or WebP preserves the alpha channel, and ICO output keeps PNG-based transparency. If white backgrounds are a problem, choose PNG or WebP as the output format.
Are there any file size limits?
Since all processing happens in your browser, the practical limit depends on your device's available memory. Most images under 50MB work fine. Very large images (100MB+) may cause performance issues on lower-end devices.
Can I convert SVG to PNG or JPEG?
Yes. SVG files are accepted as input and will be rasterized (converted to pixels) during the conversion process. The output will be a standard raster format. Note that SVG resolution depends on the render size used during conversion.
Why did my photo lose its EXIF data after conversion?
Because conversion keeps only pixel data and basic color information; EXIF metadata (camera settings, GPS location, date taken) is not carried over to the output file. If EXIF preservation is critical, use a dedicated metadata tool or keep the original file.
Can I convert images to PDF?
Not in this tool: PDF is not one of the output formats here. Use the dedicated Image to PDF converter on this site instead, which combines multiple images into a single PDF file with page options. For single-image or batch raster conversions (JPG, PNG, WebP, AVIF, ICO), this tool is the right one.
Can I convert an image to SVG?
No. Turning a raster image into a vector requires tracing (vectorizer software or Illustrator's Image Trace), which is not format conversion. However, SVG input is supported: it is rasterized to JPG, PNG, WebP, or any other output format here. If you need SVG output, use a tracing tool instead.
What is AVIF and should I use it?
AVIF (AV1 Image File Format) is a next-generation image format based on the AV1 video codec. It offers even better compression than WebP, typically 20-30% smaller files at the same quality. However, browser support is still growing. Use AVIF for modern websites where file size is critical.
Can I convert images between CMYK and RGB?
No. This tool does not perform color space conversion. The output image uses the sRGB color space, which is the standard for web and most digital uses. For professional print workflows requiring CMYK, use dedicated graphics software like Photoshop or GIMP.
Why do the colors look different after conversion?
The usual cause is a wide-gamut source: photos from modern phones are often stored in Display P3, and this tool outputs sRGB. Colors outside the sRGB range get mapped to the nearest representable color, which can make very saturated tones look slightly flatter. This is not a bug; it is the correct conversion for web display. If you need the P3 colors preserved exactly, keep the original format; if you only notice a small shift, the conversion is working as intended.
Can I compress an image to an exact size, like 100 KB?
No. This tool compresses by quality, and the resulting size depends on the image's content and dimensions, so it cannot hit a target like 100 KB exactly. Practical approach: try 80% quality, read the size shown in the result list, then step down to 70%, 60% until you pass the limit, or crop and resize the image first, since dimensions affect size more than quality does. For precise target sizes, use a dedicated image compressor that iterates automatically.
My HEIC photo won't open or shows an error in this tool. Why?
HEIC decoding depends on the browser: Safari and Edge decode it natively, while Chrome and Firefox rely on operating-system support; on Windows you need the HEIF Image Extensions from the Microsoft Store, and on Android support varies by device. Workarounds: enable Most Compatible in your iPhone camera settings so photos are saved as JPG, or export a JPG from the Photos app and convert the rest here.