Convert Image Online Free: JPG, PNG, WebP, AVIF, HEIC
Convert images between JPG, PNG, WebP, AVIF, and HEIC formats. Free, online, and without uploading to any server. Pixlane's image converter runs entirely in your browser, so your photos stay private on your device. No signup, no watermark, no file size limit.
Whether you need to convert HEIC from your iPhone to JPG, switch a PNG to WebP for better web performance, or batch-convert photos to AVIF, the converter handles supported inputs with timing that varies by image, browser, and device.
How to Convert an Image Online
- Open your image: drag any JPG, PNG, WebP, AVIF, or HEIC file onto the tool. The file loads locally without any upload.
- Choose output format: select JPG, PNG, WebP, or AVIF. For JPG and WebP, set the quality level (80% is optimal for web). For PNG-to-JPG, choose a background fill color for transparent areas.
- Download the converted file: click Download to save your image in the new format. Completion time varies by image, browser, and device, with cached assets on repeat visits.
Format Comparison. When to Use Each
- JPG: Best for photographs and realistic imagery. Universal support across all devices, apps, and email clients. File sizes are compact. Does not support transparency. Use JPG when compatibility matters most.
- PNG: Best for screenshots, logos, icons, and images with text. Lossless compression preserves every pixel exactly. Supports full transparency. Larger file sizes than JPG for photographs but essential for pixel-perfect graphics.
- WebP: Modern web format with adjustable lossy and lossless options. Supports transparency (like PNG) and animation (like GIF). Support varies by browser version and platform. Ideal for web performance optimization.
- AVIF: Newest format. Compare the AVIF preview and measured output size with the source before download. Excellent for high-resolution photos and web images. Browser support is now broad (Chrome, Firefox, Safari 16+). Encoding is slower than JPG or WebP.
- HEIC: Apple's High Efficiency Image Container used by iPhone cameras. Excellent compression and quality, but not universally supported on Windows or non-Apple apps. Convert to JPG or PNG for maximum compatibility.
Common Conversion Scenarios
- iPhone photos (HEIC) → JPG: Share photos with Windows users, upload to websites, or submit to services that do not accept HEIC.
- PNG screenshots → JPG: Convert a large PNG screenshot to an adjustable-quality JPG for email or documentation, then review the measured output size.
- JPG photos → WebP: Compare measured WebP and JPG output sizes for each source image before publishing.
- PNG logos → WebP: Keep transparency and reduce file size for web-served logos and UI graphics.
- JPG → PNG: Convert to PNG before editing to avoid re-compression artifacts from repeated JPG saves.
- Any format → AVIF: Achieve the smallest possible file size for high-quality web images on supported browsers.
Does Converting Change Image Quality?
Converting between lossless formats (PNG ↔ PNG, PNG → WebP with lossless) preserves every pixel exactly. Converting to a lossy format (JPG, lossy WebP, AVIF) applies compression: the amount depends on the quality setting. At higher quality settings, compare the preview with the source because results vary by image and encoder. Converting from a lossy format like JPG to PNG does NOT recover lost quality. It just stores the already-compressed pixels in a lossless container, usually at a larger file size.
Frequently Asked Questions
- Which format should I use for photos?
- Use JPG for broad compatibility; compare WebP and AVIF previews, measured output sizes, and target-browser support. PNG is not ideal for photos: use it for screenshots, logos, and graphics with transparency.
- What happens to transparency when converting to JPG?
- Transparent areas are filled with a solid background color (white by default). JPG does not support transparency. Convert to PNG or WebP if you need to preserve the alpha channel.
- Does format conversion reduce file size?
- Output size varies by source content, target format, encoder, and settings. Compare the preview and measured output before download.
- Can I convert HEIC from my iPhone to JPG?
- Yes. Open your HEIC file and select JPG as the output format. The converted file is immediately downloadable and compatible with any device or application.
- Is the converter free and private?
- Core conversion access currently requires no signup or watermark. Processing paths and tool-specific limits may vary.