Free Online Image Converter - Convert JPG, PNG, WebP, BMP, GIF Instantly
🖼️ Zilgist Image Converter
Upload an image and convert it to your desired format with custom quality settings.
Higher quality = larger file size. PNG and BMP ignore this setting.
Resize Image (Optional)
📥 Download Converted Image
Why Use Zilgist Image Converter?
🔒 100% Private
All conversions happen in your browser. Your images never leave your device.
⚡ Lightning Fast
Instant conversion without uploading to servers. No waiting time!
🆓 Completely Free
No hidden fees, no watermarks, no registration required. Use unlimited times.
🎨 Quality Control
Adjust image quality and resize dimensions to get the perfect output.
How to Use the Image Converter
Step-by-Step Guide:
- Upload Your Image: Click on the upload box and select an image file from your computer. Supported formats include JPG, PNG, GIF, WebP, BMP, and SVG.
- Preview: Your image will appear on the screen so you can verify it's the correct file.
- Choose Output Format: Select your desired format from the dropdown menu (PNG, JPG, WebP, BMP, or GIF).
- Adjust Quality (Optional): Use the quality slider to control the output file size. Higher quality means larger files. This works for JPG, WebP, and GIF formats.
- Resize Image (Optional): Enter custom width or height if you want to resize your image. Keep "Maintain aspect ratio" checked to prevent distortion.
- Convert: Click the "Convert & Download" button.
- Download: Once converted, a download link will appear. Click it to save your converted image.
Supported Image Formats:
- JPG/JPEG: Best for photographs and images with many colors. Smaller file sizes but lossy compression.
- PNG: Best for images requiring transparency or lossless quality. Larger file sizes but perfect quality.
- WebP: Modern format with excellent compression. Smaller than JPG with better quality.
- BMP: Uncompressed bitmap format. Very large files but maximum compatibility.
- GIF: Best for simple graphics and animations. Limited to 256 colors.
Tips for Best Results:
- For web use, choose WebP or JPG at 80-90% quality for the best balance of quality and file size.
- For logos and graphics with transparency, use PNG format.
- For printing, use PNG at maximum quality to preserve detail.
- Keep the "Maintain aspect ratio" option checked to prevent image distortion when resizing.
- Your images are processed locally in your browser - they never get uploaded to any server, ensuring complete privacy.
Frequently Asked Questions
Is this image converter free to use?
Yes! Zilgist Image Converter is completely free with no limitations. Convert as many images as you need without any charges or watermarks.
Are my images uploaded to a server?
No. All image conversions happen directly in your web browser using JavaScript. Your images never leave your device, ensuring complete privacy and security.
What's the maximum file size I can convert?
There's no strict limit, but very large images (over 50MB) may slow down your browser. For best performance, we recommend images under 20MB.
Which format should I choose?
It depends on your needs: Use JPG for photographs and web images, PNG for images with transparency or when you need lossless quality, WebP for modern websites with the best compression, and GIF for simple graphics or animations.
Can I convert multiple images at once?
Currently, the converter processes one image at a time. Simply convert your first image, then upload the next one to continue.
Will converting to JPG reduce image quality?
JPG uses lossy compression, so there will be some quality loss. However, at 90-95% quality settings, the difference is usually imperceptible to the human eye while significantly reducing file size.
Can I convert HEIC or RAW camera files?
Browser-based converters cannot process HEIC, TIFF, or camera RAW formats (like CR2, NEF, ARW) due to technical limitations. For these formats, you'll need desktop software or specialized converters.