Different platforms, apps, and workflows require different image formats. A PNG that works perfectly on your design canvas is rejected by an email client that needs a JPG. A photo in JPG loses nothing converted to WebP but saves 30% in file size. Converting between formats used to mean installing desktop software — now it takes a few seconds in your browser, with no files ever leaving your device.
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Which Format Should You Use?
JPG / JPEG
Best for photographs and images with many colours. Lossy compression keeps file sizes small. Cannot store transparency. Supported everywhere.
PNG
Best for graphics, logos, screenshots, and anything needing a transparent background. Lossless — no quality loss but larger files than JPG.
WebP
Up to 30% smaller than JPG at equivalent quality, with transparency support. Ideal for web. Supported by all modern browsers including Safari 14+.
GIF / BMP
GIF for short animations and simple graphics with limited colours. BMP for Windows compatibility. Both are legacy formats — prefer PNG or WebP for new work.
How to Convert an Image Format Online (Step-by-Step)
Open the Image Format Converter
Go to the Image Format Converter tool. It runs entirely in your browser — your files never leave your device and nothing is uploaded to a server.
Upload One or Multiple Images
Click to browse or drag and drop your images into the upload area. The tool accepts JPG, PNG, WebP, GIF, BMP, SVG, and more. Add multiple files at once for batch conversion.
Choose the Output Format
Select your target format from the dropdown — JPG, PNG, or WebP are the most common choices. If you select JPG or WebP, a quality slider lets you balance file size against visual quality.
Adjust Quality (Optional)
For lossy formats like JPG, a quality of 80–85% is a good balance between file size and sharpness. For web use, 75% is often acceptable. For print or archiving, use 95% or higher.
Convert and Download
Click Convert to process all files. Each result appears with a preview, file size, and download button. Download files individually or use the Download All button to get a ZIP.
No sign-up · No watermarks · Files never leave your device
Common Conversion Use Cases
| Scenario | From | To | Reason |
|---|---|---|---|
| Uploading to a website | PNG / JPG | WebP | Smaller files, faster load times, better Core Web Vitals |
| Sending by email | PNG | JPG | PNGs can be very large; JPG reduces size without visible quality loss |
| Needing transparency | JPG | PNG | JPG cannot store transparent pixels; PNG can |
| Legacy CMS upload | WebP / HEIC | JPG | Older platforms may not accept modern formats |
| Print production | JPG | PNG | Lossless format preserves all detail for print workflows |
| Social media post | PNG | JPG | Social platforms re-compress images; JPG avoids double compression artefacts |
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Tips for Better Conversions
Best practices
- ✓Always convert from the highest quality source — converting a low-quality JPG to PNG does not recover lost detail.
- ✓For web images, try WebP first — best quality-to-size ratio and supported by all modern browsers.
- ✓Use quality 80–85% for most JPG/WebP conversions — the size reduction is significant while quality loss is invisible.
- ✓Batch convert all images in a project at once to ensure consistency in format and quality settings.
Things to watch for
- ⚠Don't convert JPG to PNG expecting a lossless result — compression artefacts from the JPG are already baked in.
- ⚠Don't re-save a JPG as JPG repeatedly — each save applies another round of lossy compression.
- ⚠Converting PNG with transparency to JPG fills transparent areas with white — use PNG or WebP if you need transparency.
- ⚠Very large files (>50MB) are skipped to protect performance — compress or crop first if needed.
Your files never leave your device
The Image Format Converter processes all files entirely inside your browser using the Canvas API. No images are uploaded to any server — your photos and graphics stay on your device at all times.
Frequently Asked Questions
Can I convert multiple images at once?
Yes. The Image Format Converter supports batch conversion — drag and drop as many files as you need, choose your output format and quality, and all images are processed and available for download simultaneously.
Will converting a PNG to JPG lose transparency?
Yes. JPG does not support transparency. Transparent areas are filled with white when converting to JPG. If you need to preserve transparency, convert to PNG or WebP instead.
Is WebP supported by all browsers?
All modern browsers — Chrome, Firefox, Safari 14+, Edge, and Opera — support WebP. Only Internet Explorer (now retired) lacks WebP support. For any new project, WebP is a safe choice.
What quality setting should I use for JPG conversion?
For most use cases, 80–85% is the sweet spot — file sizes are significantly smaller than at 100% while quality loss is imperceptible. Use 90–95% for professional photography. Use 70–75% when minimising file size is the top priority.
Can I convert SVG to a raster format like JPG or PNG?
SVG conversion is handled separately by the SVG to Image tool because SVG is a vector format that requires rendering to a specific resolution first. The Image Format Converter focuses on raster-to-raster conversions between JPG, PNG, WebP, GIF, and BMP.
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