Convert Image Format Free — JPG, PNG, WebP, AVIF and More
Convert between JPG, PNG, WebP, AVIF, BMP, GIF and TIFF, including HEIC (iPhone photo) input. Batch up to 10 images, choose a quality level, and control what happens to transparency. Free, no signup.
Which Image Format Should You Choose?
Image format selection affects file size, quality, compatibility, and whether transparency is supported. Here's a practical breakdown:
JPG (JPEG) — The Default Choice for Photos
JPG uses lossy compression that's particularly effective for photographs. JPG does not support transparency — converting a PNG with a transparent background produces a JPG with your chosen fill color in place of the transparent areas.
PNG — When Quality and Transparency Matter
PNG uses lossless compression, ideal for screenshots, text, logos, and anything needing pixel-perfect accuracy. PNG also supports transparency, which JPG does not.
WebP and AVIF — Modern Formats for the Web
WebP and AVIF typically produce smaller files than JPG at equivalent visual quality, and both support transparency like PNG. AVIF is newer and often even smaller than WebP, but very old software may not support it — check your target platform if compatibility matters.
HEIC — iPhone Photos
HEIC (or HEIF) is the default photo format on recent iPhones. Upload a HEIC file directly and convert it to JPG, PNG, WebP, or any other supported output — HEIC is accepted as input but not offered as an output format.
Transparency Warning: JPG, BMP, and GIF Don't Support It the Same Way
If you have a PNG, WebP, or AVIF with a transparent background — a logo, an icon, a product shot — and convert it to JPG, BMP, or GIF, the transparent areas are filled with the background color you pick (white by default). The tool tells you explicitly when this happened.
Related Guides
Need a complete format guide? Read our guide on how to convert an image to WebP online for free, including JPG vs PNG vs WebP, transparency, quality settings, compatibility and website performance.
Not sure which format to pick? Read HEIC, AVIF, WebP, PNG, or JPG: which format should you use? for a practical comparison.
Frequently Asked Questions
Does converting between formats reduce quality?
Converting to PNG: no quality loss beyond whatever the source already had, since PNG is lossless. Converting to JPG, WebP, or AVIF: the quality slider controls the trade-off — higher is closer to lossless, at a larger file size.
Can I convert an animated GIF or WebP?
Only the first frame is converted — animated output isn't supported. The result tells you when the source was animated and a frame was dropped.
Can I convert multiple images at once?
Yes — upload up to 10 images and they're all converted to the same output format, with a ZIP download plus individual downloads.
What's the difference between converting and compressing?
Converting changes the file format. Compressing reduces file size within the same format. Use our Image Compress tool for compression without a format change.
Format Conversion at a Glance
| Converting From → To | Quality | Transparency |
|---|---|---|
| PNG → JPG | Slight loss (lossy compression) | Flattened to your chosen color |
| JPG → PNG | No further loss (already lossy) | N/A — JPG has none to preserve |
| PNG → WebP / AVIF | Controlled by quality slider | Preserved |
| HEIC → JPG | Controlled by quality slider | N/A — HEIC photos rarely have alpha |