Convert Images Online Free
Convert images online free between PNG, JPG, WebP, and AVIF — resize, rotate, and transform entirely in your browser. No uploads, no accounts, no limits.
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JPEG · PNG · WebP · GIF · BMP · TIFF · SVG · AVIF
How to Convert Images Online
- 1Click the upload area or drag your image onto it. Supported inputs include JPEG, PNG, WebP, AVIF, GIF, BMP, TIFF, and HEIC. The image loads locally — no data leaves your browser.
- 2Choose your output format from the Format menu: JPEG, PNG, WebP, or AVIF. Adjust the quality slider for lossy formats.
- 3Optionally adjust Width and Height to resize the image. Enable the aspect ratio lock to scale proportionally. Use the rotation and flip controls for orientation corrections.
- 4Click Convert & Download. The converted file is saved to your device with the new format extension.
Which Image Format Should You Use?
Different formats suit different purposes. JPEG is the standard for photographs — it compresses efficiently but loses some detail on every save. PNG is preferred for screenshots, logos, and images with transparency because it is lossless. WebP is a modern format that achieves 25–35% smaller files than equivalent JPEG at the same visual quality, making it ideal for web performance. AVIF is even newer and compresses 50% better than JPEG, with broad support in Chrome, Firefox, and Safari.
Converting formats locally means your original files and the converted output stay entirely on your device. Unlike cloud converters, there is no risk of your images being stored, cached, or used by a third-party service.
Image Format Comparison
| Format | Best For | Transparency | Typical Use |
|---|---|---|---|
| JPEG | Photos, gradients | No | Web photos, email attachments |
| PNG | Screenshots, logos, text | Yes | Web graphics, design assets |
| WebP | Web images (all uses) | Yes | Website images, all modern browsers |
| AVIF | High-quality web images | Yes | Next-gen web, performance-critical pages |
Image Conversion Tips
Use WebP for Web
WebP is supported in all major browsers and reduces file sizes by 25–35% vs. JPEG. Convert your site's photos to WebP for better Core Web Vitals scores and faster load times.
PNG for Transparency
If your image has a transparent background, PNG or WebP are the correct formats — JPEG cannot store transparency and will replace it with a solid white or black fill.
JPEG for Photos
Photographs compress very efficiently as JPEG. A 10 MB RAW photo can become a 200 KB JPEG with minimal visible quality loss at quality 80–85.
Resize While Converting
Use the width/height controls to resize while converting. Combining format change with downscaling produces the best file size reductions in a single step.
Try AVIF for Max Compression
AVIF offers the best compression ratio of any common format. Use it for performance-critical pages — it can reduce file size by 50% compared to JPEG at equivalent quality.
Batch in Tabs
To convert multiple images, open this tool in several browser tabs. Each tab handles one image independently, so you can run multiple conversions simultaneously.
Frequently Asked Questions
What input formats does the converter accept?
The converter accepts JPEG, PNG, WebP, AVIF, GIF, BMP, TIFF, HEIC (iPhone Live Photos), and ICO files. Support for HEIC and TIFF depends on your browser — they work in recent versions of Chrome and Safari.
What formats can I convert to?
You can export as JPEG, PNG, WebP, or AVIF. These cover virtually all web and general-purpose image needs. The output format is selected from the Format dropdown before conversion.
Does converting JPEG to PNG improve quality?
No. Converting a JPEG to PNG produces a lossless copy of the already-compressed JPEG. The original JPEG artefacts are preserved — they do not disappear. PNG conversion is useful when you need a lossless container for subsequent editing, not for recovering lost quality.
What happens to image transparency when converting to JPEG?
JPEG does not support transparency. If your PNG or WebP image has a transparent background, it will be replaced with white when exported as JPEG. Convert to PNG or WebP instead if you need to preserve transparency.
Is there a file size or resolution limit?
There is no server-side limit because no files are uploaded. Very large images — 50 MB+ or 10,000+ pixels wide — may take a few seconds to process and could use significant browser memory. On mobile devices, very large files may cause the tab to run slowly.
Will EXIF data (location, camera settings) be preserved?
EXIF metadata is not preserved when converting via the Canvas API. If retaining metadata is important — for photography archives or legal files — use specialised software like ExifTool or Adobe Lightroom.
Why does my converted WebP appear slightly different from the original?
WebP uses lossy compression by default (similar to JPEG). The quality slider controls the trade-off between file size and fidelity. At quality 90+, differences are imperceptible. At lower settings, you may see minor colour shifts or artefacts in high-detail areas.
Can I batch-convert multiple images?
The tool processes one image at a time. For multiple files, open the converter in separate browser tabs — each converts independently. For bulk conversion of hundreds of files, a command-line tool like ffmpeg or ImageMagick is more practical.