Image Format Converter
An image format converter changes a picture between PNG, JPEG, and WebP without altering its dimensions. Convert PNG to JPG, JPG to WebP, or WebP to PNG entirely in your browser -- your image is never uploaded to a server.
PNG is lossless and supports transparency.
Higher quality keeps more detail but increases file size.
How to Convert an Image Format
- Add your image. Drag a file onto the drop area or click to browse. PNG, JPG, WebP, GIF, and BMP are all accepted.
- Pick an output format. Choose PNG for lossless graphics and transparency, JPEG for small photo files, or WebP for the best size-to-quality balance.
- Tune quality. For JPEG and WebP, drag the quality slider to trade file size against detail. PNG is always lossless.
- Set a fill (if needed). When converting a transparent image to JPEG, choose the background color that replaces the transparent areas.
- Download. Click Download to save the converted file. Everything happens in your browser -- nothing is sent anywhere.
PNG vs JPEG vs WebP: Which Should You Use?
Choosing the right format is mostly about the trade-off between file size, image quality, and whether you need transparency. Here is a practical guide to help you decide before you convert.
PNG -- lossless graphics and transparency
PNG stores every pixel exactly and supports a full alpha (transparency) channel. That makes it ideal for logos, icons, screenshots, line art, and any image with sharp edges or flat color regions. The downside is file size: PNG compresses photographic detail poorly, so a photo saved as PNG is often several times larger than the same photo as JPEG or WebP. Convert to PNG when you need crisp edges or transparent backgrounds and size is not critical.
JPEG -- small photo files
JPEG is a lossy format tuned for photographs and other images with smooth gradients. It throws away detail the eye is unlikely to notice, achieving small files at reasonable quality. JPEG does not support transparency, so converting a transparent PNG to JPEG fills the transparent areas with a solid color -- which is why this tool lets you pick that fill color. Use JPEG for photos you will email, post, or store in bulk, and keep quality around 80-92 for a good balance.
WebP -- the modern all-rounder
WebP supports both lossy and lossless modes plus transparency, and typically produces files 25-35% smaller than JPEG or PNG at comparable quality. It is well supported across modern browsers, making it an excellent choice for websites where page weight matters. If your only goal is the smallest possible file that still looks good, WebP is usually the winner. The main caveat is that some older software and email clients still do not recognize WebP, so JPEG or PNG remain safer for maximum compatibility.
Privacy and Limitations
- 100% client-side. Your image is read, drawn to an HTML canvas, and re-encoded entirely within your browser. It is never uploaded to a server, and nothing is stored or logged.
- Format only, not dimensions. This tool changes the file format and compression but keeps the original width and height. To change pixel size, use a resize tool.
- Single still frame. Animated GIFs and other multi-frame images are flattened to one frame, because the Canvas API captures a single frame at a time.
- Metadata is dropped. Re-encoding through the canvas removes EXIF data such as camera model, GPS location, and orientation tags. This is good for privacy but means rotation stored only in EXIF may change how the image displays.
- Browser decoding required. The tool can only open formats your browser can decode. HEIC and camera RAW files usually will not load.
- Large files use memory. Very large images (tens of megapixels) consume significant memory while converting and may be slow on low-end devices.
Frequently Asked Questions
How do I convert a PNG to a JPG?
Drag your PNG into the upload area or click to pick a file, choose JPEG as the output format, then click Download. If your PNG has a transparent background, pick a background fill color (white by default) because JPEG cannot store transparency. The whole conversion runs in your browser.
How do I convert an image to WebP?
Upload any PNG, JPG, or WebP image, select WebP as the output format, adjust the quality slider if you want a smaller file, and download. WebP usually produces noticeably smaller files than PNG or JPEG at similar visual quality.
Does converting to JPEG remove transparency?
Yes. JPEG has no alpha channel, so transparent areas are filled with a solid color. This converter lets you choose that background fill color (default white) before converting, so you control how transparent regions appear in the result.
Is PNG to JPG conversion lossless?
No. JPEG is lossy, so converting from PNG to JPEG discards some data to shrink the file. PNG and lossless WebP preserve every pixel. Use the quality slider to balance file size against fidelity for JPEG and WebP output.
What does the quality slider do?
For JPEG and WebP, the slider sets compression from 1 to 100. Higher values keep more detail but make larger files; lower values compress harder. PNG is always lossless, so the slider is disabled when PNG is selected.
Why is my converted file larger than the original?
Converting a compressed photo to PNG often increases size, because PNG is lossless and cannot compress photographic detail efficiently. For small files, prefer JPEG or WebP for photos and reserve PNG for graphics, logos, and images that need transparency.
Will the image dimensions change?
No. This tool only changes the format and compression, not the pixel dimensions. The output keeps the same width and height as the original. To resize, use a dedicated image resize tool.
Can I convert HEIC or RAW files?
Only if your browser can decode them, which most cannot. Convert HEIC or camera RAW to JPEG or PNG with another tool first, then use this converter.
Are my images uploaded to a server?
No. Reading the file, drawing it onto a canvas, and encoding the new format all happen locally in your browser using the Canvas API. Your image never leaves your device and nothing is stored.
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Image Format Converter FAQ
How do I convert a PNG to a JPG?
Drag your PNG into the upload area or click to pick a file, choose JPEG as the output format, then click Download. If your PNG has a transparent background, pick a background fill color (white by default) because JPEG does not support transparency. The conversion runs entirely in your browser.
How do I convert an image to WebP?
Upload any PNG, JPG, or WebP image, select WebP as the output format, adjust the quality slider if you want smaller files, and download. WebP usually produces noticeably smaller files than PNG or JPEG at similar visual quality.
Does converting to JPEG remove transparency?
Yes. JPEG has no alpha channel, so any transparent areas are filled with a solid color. This tool lets you choose that background fill color (default white) before converting, so you control how transparent regions appear.
Is PNG to JPG conversion lossless?
No. JPEG is a lossy format, so converting from PNG to JPEG discards some image data to reduce file size. PNG and lossless WebP preserve every pixel exactly. Use the quality slider to balance file size against visual fidelity for JPEG and WebP.
What does the quality slider do?
For lossy formats (JPEG and WebP) the quality slider sets the compression level from 1 to 100. Higher values keep more detail but produce larger files; lower values compress harder and shrink the file. PNG is always lossless, so the slider is disabled for PNG output.
Are my images uploaded to a server?
No. Every step -- reading the file, drawing it onto a canvas, and encoding the new format -- happens locally in your browser using the HTML Canvas API. Your image never leaves your device and nothing is stored or logged.
Why is my converted file larger than the original?
Converting a compressed photo (JPEG or WebP) to PNG often increases size because PNG is lossless and cannot compress photographic detail as efficiently. To keep files small, prefer JPEG or WebP for photos and reserve PNG for graphics, logos, and images that need transparency.
What image formats can I convert between?
You can load PNG, JPEG, WebP, GIF, BMP, and most other browser-supported image formats, and export to PNG, JPEG, or WebP. Animated GIFs are flattened to a single still frame because the Canvas API captures one frame at a time.
Will the image dimensions change?
No. This converter only changes the file format and compression, not the pixel dimensions. The output keeps the same width and height as the original. To resize an image, use a dedicated image resize tool.
Can I convert HEIC or RAW files?
Only if your browser can natively decode them. Most browsers do not support HEIC or camera RAW formats, so those files may fail to load. Convert them to JPEG or PNG with another tool first, then use this converter.