Image Format Converter

Yes — JPEG has no alpha channel, so transparent areas are filled white. Use PNG or WebP to keep transparency.

A small number of older browsers cannot encode WebP or AVIF via canvas — the tool will tell you and fall back to PNG if that happens. AVIF encoding support in particular varies more by browser than WebP does, since it was added later (Chrome 85+, Firefox 93+, Safari 16.4+).

WebP typically produces smaller files than JPEG at equivalent visual quality, and unlike JPEG it also supports transparency, making it a good default for the web. Stick with JPEG or PNG if you need guaranteed compatibility with older software or specific print/design tools that don't support WebP.

Yes — AVIF is available both as a source format and a conversion target, the same as PNG, JPEG, and WebP. AVIF is a newer, generally even more efficient format than WebP (roughly 20-30% smaller than WebP and about 50% smaller than JPEG at similar visual quality), though its browser encoding support arrived later, so a small number of older browsers may fall back to PNG — the tool tells you if that happens.

You can upload a GIF or BMP as your source image and convert it into PNG, JPEG, WebP, or AVIF, but not the other way around — no browser can encode a canvas back out to GIF or BMP format, so those two are accepted as input only.

No, honestly — this tool handles one image at a time. If you need to convert a batch of files, look for a tool that specifically advertises batch or bulk conversion.

Roughly: WebP is about 25-35% smaller than an equivalent-quality JPEG, and AVIF is smaller still — typically 20-30% smaller than WebP, and around 50% smaller than JPEG. Actual savings vary by image content and how much compression the source already had.

No — HEIC needs its own decoder that a browser canvas can't read directly. Use the dedicated HEIC to JPG Converter on this site instead, then bring the result here if you need PNG, WebP, or AVIF specifically.

No — this tool converts at a fixed high-quality setting (92%) and focuses purely on changing format. If you want to adjust compression level and file size directly, use the Image Compressor tool instead — and if you need to resize the actual dimensions rather than the format, use Image Resizer.

Usually, but not guaranteed — it depends on what's in the image. A photo with lots of color gradients typically gets noticeably smaller as JPEG, since JPEG's lossy compression is built for exactly that kind of content. A simple graphic or icon with flat colors and sharp edges can sometimes end up the same size or even larger as JPEG than the original PNG, and JPEG will introduce visible compression artifacts on those sharp edges that PNG wouldn't have. This tool shows the before/after size directly so you can check rather than guess.

Neither is universally better — they're built for different content. PNG is lossless (no quality loss, ever) and supports transparency, which makes it the right choice for logos, screenshots, and graphics with sharp edges or text. JPEG is lossy but compresses photos much smaller at a visually similar quality, which makes it the right choice for photographs where file size matters more than pixel-perfect accuracy.

AVIF is a modern image format (based on the AV1 video codec) that compresses noticeably smaller than both JPEG and PNG at a similar visual quality — roughly 50% smaller than JPEG. It supports transparency like PNG does, but unlike PNG it's lossy like JPEG, so it's best suited for photos rather than graphics needing pixel-perfect accuracy. It isn't the same file type as JPEG or PNG and needs its own decoder, though every current major browser can display one directly.

WebP is Google's image format sitting between PNG and JPEG in capability — it can be lossless or lossy, and supports transparency either way. For just viewing WebP images, browser support is very wide (roughly 97-99% of browsers worldwide, more universal than AVIF's newer, still-growing support). Its real limitation is outside the browser: some image-editing software, including Photoshop, needs a plugin to open WebP natively, which is worth knowing if you plan to edit the converted file afterward rather than just publish it.

Yes — every current major browser (Chrome, Firefox, Safari, Edge) can open both formats directly if you drag the file into a browser tab or window. Convert here instead if you specifically need a more universally-compatible format for editing software, an older device, or sharing with someone whose setup might not handle AVIF or WebP.

No — this tool only converts between image formats (PNG, JPEG, WebP, AVIF, plus GIF/BMP as input). For images to/from PDF, use PDF to JPG or Document to PDF Converter elsewhere on this site instead.

No — the conversion happens entirely in your browser using the Canvas API. Your image never leaves your device or touches a server.