PNG Image Converter – Convert PNG to JPG, WebP, AVIF, ICO & TIFF
About the PNG Image Converter
PNG is a lossless format, which is exactly why people convert away from it. Every pixel is stored faithfully, so a photograph saved as PNG can be several times larger than the same image in a compressed format. This PNG Image Converter takes a PNG up to 10MB and re-encodes it as JPG, WebP, AVIF, GIF, ICO, or TIFF, with quality and resize controls in the same pass.
The decision that matters most with PNG is transparency. PNG supports a full alpha channel, and not every destination format does. WebP, AVIF, ICO, and TIFF all carry transparency through intact. JPG and GIF do not — so when either of those is selected, the converter fills the canvas with white before drawing your image. Without that step, transparent areas would render as solid black, which is the single most common surprise when converting PNG logos and icons.
Six output buttons cover the practical destinations: JPG for maximum compatibility and small photographic files, WebP as the modern web default, AVIF for the smallest files on current browsers, GIF for legacy embedding, ICO for favicons, and TIFF for print and archival work. Support is tested against your actual browser when the page loads, and any format your browser cannot encode is disabled rather than left to fail mid-conversion.
Everything runs on the HTML canvas inside your own browser. The PNG is read locally, redrawn, encoded, and returned as a download — it is never transmitted to a server, which matters when the file is a client logo, a product mockup, or an internal screenshot.
Resizing happens in the same step as conversion, either by percentage or by exact pixel dimensions with an aspect ratio lock. When you know the shape you need but not both numbers, the Aspect Ratio Calculator gives you the second dimension before you type it in.
After each conversion a side-by-side preview shows the original beside the result over a transparency checkerboard, so you can immediately see whether the alpha channel survived. Four statistics report the original size, the converted size, the signed percentage change in green or red, and the final dimensions.
This page was reviewed by the tools team at BigToolSite, who converted transparent logos, screenshots, and photographic PNGs through all six outputs, and confirmed the white-fill behavior prevents the black-background problem that catches most people converting PNG to JPG.
How to Use the PNG Image Converter
- Drag a PNG into the upload panel or click to browse. Only .png files are accepted, up to 10MB, and anything else returns a specific error message.
- Check the file card that appears — thumbnail, filename, file size, and pixel dimensions. The thumbnail sits on a checkerboard so you can see at a glance whether your source has transparency.
- Pick an Output Format from the six buttons. JPG is selected by default since it is the most common destination for oversized PNGs.
- Set the Quality slider for JPG, WebP, or AVIF. It runs 1 to 100 and starts at 85; the slider is hidden for GIF, ICO, and TIFF where it has no effect.
- Choose a Resize mode: Original Size, 25%, 50%, 200%, or Custom Size. Custom reveals width and height fields with Maintain aspect ratio enabled, so filling in one dimension calculates the other.
- For ICO output, select an ICO Size: 16, 32, 48, 64, 128, or 256 pixels. Icons are square, so this replaces the general resize options.
- Click Convert & Download. A progress bar reports each stage, the file downloads automatically with a -converted suffix, and the preview and statistics appear below.
- Use Reset, or the Remove button on the file card, to clear everything and start with a different image.
Example Usage
Input: screenshot.png, 2560×1440, 3.8 MB. Format WebP, Quality 85, Resize 50%.
Output: screenshot-converted.webp at 1280×720, typically under 150 KB — a size change around −96% in green. Screenshots saved as PNG are the classic case of a file that is far larger than it needs to be for web use.
Input: logo-transparent.png, 1000×1000 with an alpha channel. Format JPG, Quality 90.
Output: logo-transparent-converted.jpg on a white background. The transparency is gone, because JPG has no alpha channel at all — the converter substitutes white rather than letting those pixels turn black. If you need the transparency preserved, choose WebP, AVIF, or ICO instead.
Input: app-icon.png, 1024×1024. Format ICO, ICO Size 256×256.
Output: app-icon-converted.ico at retina resolution with transparency intact, since ICO wraps PNG data internally. Run a second conversion at 32×32 for the standard browser favicon and keep both.
Input: artwork.png, 3000×2400. Format TIFF, Resize Original Size.
Output: artwork-converted.tiff, uncompressed and suited to print production. Expect the size change to show as a positive number in red — TIFF trades file size for fidelity by design. Before sending it to a printer, the DPI/PPI Calculator confirms whether your pixel count supports the physical dimensions you need.
Converting in the other direction is a separate job with different tradeoffs, since a JPG source has already lost detail permanently. The JPG to Image Converter handles that starting point, including JPG to PNG.
Frequently Asked Questions
Yes. JPG has no alpha channel, so transparent areas must be replaced with something solid. This converter fills them with white, which is why your logo appears on a white background rather than turning black as it would in many other tools.
WebP, AVIF, ICO, and TIFF all preserve the alpha channel. JPG and GIF do not — GIF technically supports a single transparent color, but the result is jagged at the edges, so the converter fills white for both.
PNG compresses losslessly, storing every pixel exactly. That works well for screenshots, logos, and flat-color graphics, but photographs contain far too much unique color detail for lossless compression to shrink much, which is why photographic PNGs balloon in size.
WebP is the reliable modern choice, with wide support and much smaller files while keeping transparency. AVIF compresses further still on current browsers. Use JPG only when the image has no transparency and you need maximum compatibility.
Yes, because JPG is lossy. At quality 85 to 90 the difference is rarely visible in photographs, but sharp edges, text, and flat color areas — exactly what PNG is best at — will show artifacts. Keep such images in PNG, WebP, or AVIF.
No. Conversion happens entirely in your browser using the canvas API, so the image never leaves your device. Nothing is stored or transmitted at any point.
Choose ICO as the output format and pick 32×32 from the ICO Size list for the standard browser favicon. Transparency is preserved, so a logo with a transparent background works correctly against light and dark browser themes.
Choose WebP or AVIF at a high quality setting, or TIFF for a fully lossless result. Any conversion to JPG or GIF discards data permanently, so keep your original PNG as the master copy.
Yes, it’s completely free with no signup required.
