Image to PNG Converter
Convert JPG, WebP, BMP, GIF, and other browser-supported images to PNG format. Preserves transparency where supported.
Select a JPG, WebP, BMP, or GIF and save it as PNG. The selected image is converted in your browser after the page loads.
PNG keeps transparency and avoids JPEG-style compression, so logos, icons, and screenshots stay crisp. Drop a file above to convert it.
Drop an image or click to upload
JPG, WebP, BMP, GIF → PNG
Good to know
Transparency kept
Alpha channels are preserved when the source image already has them.
Lossless output
PNG stores pixel data without the lossy compression JPEG applies.
Same dimensions
Width and height stay identical; only the format and encoding change.
Browser-based
Your image is converted after the page loads, not sent to a server.
PNG is the right choice for transparency, logos, screenshots, and graphics with sharp edges. For photographs heading to a website, WebP or JPEG will usually give a much smaller file at the same visual quality.
Why Convert to PNG?
PNG (Portable Network Graphics) uses lossless compression for the image data it stores. It also supports full transparency (alpha channel), making it useful for logos, icons, screenshots, and graphics with sharp edges or text.
The trade-off is file size. A photo saved as PNG can be 5 to 10× larger than the same image as JPEG. That's because PNG avoids JPEG-style lossy compression, while JPEG discards subtle details your eyes may not notice. For photos, JPEG or WebP usually makes more sense. For transparency, crisp lines, or text, PNG is often a better fit.
This converter runs in your browser using the Canvas API. Select any image your browser can display, such as JPEG, WebP, GIF, BMP, or AVIF, and save a PNG output. The selected image is not uploaded to an iForge Apps server by this tool.
When to Use Each Format
| Format | Works Well For | Transparency | File Size | Quality |
|---|---|---|---|---|
| PNG | Logos, icons, screenshots, text | Full alpha | Large | Lossless compression |
| JPEG | Photos, complex images | None | Small | Lossy (good enough) |
| WebP | Web images (any type) | Full alpha | Smallest | Both lossy and lossless |
| GIF | Simple animations | Binary only | Medium | 256 colours max |
| AVIF | Next-gen web images | Full alpha | Very small | Strong compression |
| SVG | Vector graphics, icons | Full alpha | Tiny (for vectors) | Scales cleanly |
What this means for you: Choose PNG when you need transparency or lossless compression. For photos on the web, JPEG or WebP will usually be much smaller.
How PNG Compression Works
PNG compresses with DEFLATE, the same lossless algorithm used inside ZIP files. "Lossless" means the original pixels can be rebuilt exactly, so opening and re-saving a PNG never degrades it. That is the opposite of JPEG, where each save throws a little more detail away.
Before compressing, PNG runs a prediction step called filtering on each row of pixels. Instead of storing raw colours, it stores the small difference between each pixel and a prediction based on its neighbours. Long runs of similar colour turn into long runs of near-zero differences, which DEFLATE packs down very efficiently.
This is why PNG shines on flat colour, solid backgrounds, and sharp text, where predictions are nearly perfect, and why it bloats on photographs, where almost every pixel differs from its neighbour and there is little for the compressor to remove. Match the format to the picture and you get the best of both: PNG for graphics, JPEG or WebP for photos.
PNG-8, PNG-24 and PNG-32 Explained
"PNG" is a family, not a single format. The number refers to how many bits store each pixel, which decides how many colours the image can hold and whether it carries smooth transparency. Picking the right variant is the difference between a 30 KB icon and a 300 KB one.
| Variant | Colours | Transparency | Best For | Relative Size |
|---|---|---|---|---|
| PNG-8 | Up to 256 (indexed palette) | On or off (1-bit) | Flat logos, icons, simple graphics | Smallest |
| PNG-24 | 16.7 million (true colour) | None | Detailed graphics and gradients without transparency | Larger |
| PNG-32 | 16.7 million + 256 alpha levels | Smooth (8-bit alpha) | Detailed graphics with soft, anti-aliased edges | Largest |
What this tool outputs: the browser Canvas API produces a true-colour PNG with a full alpha channel (effectively PNG-32). That is ideal for fidelity, but it is not the smallest possible file. If your image only uses a handful of flat colours, run the output through a palette optimiser such as pngquant or TinyPNG to convert it to PNG-8 and cut the size by 60 to 80%.
Does Converting to PNG Add Transparency?
This is the most common misunderstanding about PNG, so it is worth being clear. Converting a file to PNG preserves transparency that already exists. It does not create it.
Transparency is kept
If your source is a PNG or WebP that already has transparent areas, converting to PNG keeps those areas transparent. The alpha channel carries through the Canvas conversion unchanged.
A solid background stays solid
A JPEG has no alpha channel, so a logo on a white square becomes a PNG with a white square. The format change cannot guess which pixels you wanted removed.
To actually cut out a background, use the Background Remover first, then download the result as PNG so the transparency is retained.
Common Uses for PNG
Logos & Branding
Logos need transparent backgrounds so they work on any colour. PNG preserves crisp edges around text and shapes that JPEG would blur with compression noise.
Screenshots & UI
Screenshots contain text and sharp UI elements. JPEG compression creates visible fuzz around text, while PNG keeps every pixel sharp and readable.
Print Graphics
PNG can work for many print graphics because it avoids JPEG-style lossy compression. For professional print workflows, check the printer's preferred colour profile and file format.
Image Editing
When editing raster images across multiple sessions, PNG can avoid repeated JPEG recompression. Keep an original source file as well if you need layers or editable text.
Worked Example: A Transparent Logo for a Newsletter
The situation: Priya runs a community newsletter. Her designer sent the masthead logo as a WebP file with a transparent background, but the print template her volunteers use only accepts PNG.
Step 1: Start from the transparent source
She uploads the WebP, which already has a clear background around the lettering. Because the source carries an alpha channel, the conversion has transparency to preserve.
Step 2: Convert to PNG
The tool redraws the image onto a canvas and saves it as PNG. The transparent pixels stay transparent, so the logo can sit on the newsletter's coloured header band without a white box around it.
Step 3: Check the size
The PNG comes out larger than the WebP, which is normal. Since the logo is only a few flat colours, she runs it through a palette optimiser to shrink it back down before sharing the file with her volunteers.
Result
A clean, transparent PNG that drops into the print template and any future document. Total time: under a minute, with no software to install.
PNG Optimisation Tips
Use PNG-8 for simple graphics. If your image uses fewer than 256 colours (icons, simple logos), PNG-8 is dramatically smaller than PNG-24. Some tools call this "indexed colour" mode.
Run PNGs through TinyPNG or pngquant. These tools can apply lossy PNG compression by reducing the colour palette, often shrinking files by 60 to 80%. Check the result before replacing the original.
Consider SVG for vector graphics. If your image is a logo, icon, or illustration with solid colours, SVG can be smaller and scale cleanly. Use PNG for raster graphics or when a bitmap output is required.
Serve WebP to the web, keep PNG as the master. PNG is a great editing and archival format, but for a live website a WebP copy is usually 25 to 50% smaller. Convert at the publishing step, not in your source folder.
Common Mistakes
Saving photos as PNG
A camera photo as PNG can be several times larger than the same shot as JPEG, with no visible quality gain. Use JPEG or WebP for photographs.
Expecting PNG to add transparency
Converting a JPEG to PNG keeps its solid background. Remove the background first, then save as PNG to keep the cut-out clean.
Re-saving a JPEG to "fix" quality
PNG cannot recover detail JPEG already discarded. You lock in the existing artefacts at a larger file size. Go back to the original instead.
Converting an animated GIF
PNG is a single still frame. Converting a GIF keeps only the first frame. For animation, keep the GIF or use an animated WebP.
Ignoring colour profiles for print
Screens use RGB; many printers expect CMYK or a specific profile. Confirm the printer's requirements before sending a PNG for professional output.
Shipping the un-optimised file
A raw Canvas PNG is fidelity-first, not size-first. Pass simple graphics through a palette optimiser before using them on a page that needs to load fast.
Related Tools
How to use this tool
Select a JPG, WebP, BMP, or GIF image
Preview the converted image
Download the PNG file and review it
Common uses
- Converting logos to PNG for transparent backgrounds
- Preparing PNG files for editing or print workflows
- Converting screenshots for documentation
- Creating PNG assets for graphic design projects
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Frequently Asked Questions
Why convert to PNG?
Will converting to PNG increase file size?
Are my images uploaded to a server?
What formats can I convert from?
Does PNG preserve transparency?
When should I use PNG instead of JPEG?
When should I use WebP instead of PNG?
Is there a size limit?
Can I convert GIF animations to PNG?
Will the dimensions change?
Is PNG good for printing?
Can I convert multiple images at once?
Results are for general informational purposes only and should be checked before use. They are not professional advice. See our Disclaimer and Terms of Service.