Convert JPG, WebP, GIF, BMP or TIFF to PNG. Lossless quality, transparency preserved — no upload, no signup.
This free online image to PNG converter lets you convert JPG, WebP, GIF, BMP, TIFF, and other image formats to PNG directly in your browser — with zero file upload to any server, no watermark added, and no account required. The conversion is lossless: every pixel of your image is preserved exactly, with full alpha channel transparency maintained where present. Download your PNG in seconds, ready for editing, design work, or publishing.
PNG (Portable Network Graphics) is the gold standard format for images that demand maximum quality and flexibility. Unlike JPG, PNG never discards image data — it compresses without any loss, making it essential for logos, UI elements, screenshots, product cutouts with transparent backgrounds, and any image you plan to edit further. This converter gives you a clean, lossless PNG from any source format in one step.
Because all conversion happens locally using your browser's HTML5 Canvas API, your images never leave your device. This is not a marketing claim — there is genuinely no server request made for the conversion itself. Your personal photos, confidential design assets, and proprietary product images stay completely private.
The entire process takes under 15 seconds on any device. Here is exactly what to do.
Click the upload area or drag and drop your file onto it. Accepted formats include JPG/JPEG, WebP, GIF, BMP, TIFF, AVIF (on supported browsers), and most other common image formats. The maximum file size is 20 MB. A preview of your image appears immediately against a checkered background — the checkerboard pattern reveals any transparent areas in the image.
Select from three compression levels: Fastest (larger file, minimal processing), Balanced (recommended for most uses), or Smallest File (maximum compression, slightly slower). All three levels produce identical visual quality — PNG compression is always lossless. The slider only affects file size and the time it takes to encode the image, not what the image looks like.
If your source image has transparency (WebP, GIF with transparency, or other transparent formats), choose whether to keep it transparent in the PNG, fill it with white, or fill it with black. Transparent is the default and the right choice for most use cases — it preserves the alpha channel so the PNG can be placed on any background without a box around it.
The conversion runs instantly in your browser and downloads the PNG file automatically. The output file is named after your original image with a .png extension — for example, photo.jpg becomes photo.png. Open the file in any image viewer, editor, or design application to verify the result.
Your image file never leaves your device at any point. The HTML5 Canvas API handles the entire conversion locally in your browser memory. No cloud processing, no temporary files on any server, no logging of your images. This is the most private image converter you'll find online — not a promise, but a technical fact of how the tool is built.
PNG uses lossless compression — the output file contains every pixel of your original image exactly as it appears, with zero compression artifacts. No blurring, no blocking, no color banding. This is why PNG is the preferred format for editing masters, design assets, and any image where accuracy matters more than file size.
PNG-32 supports full 8-bit alpha channel transparency, meaning each pixel can have any opacity from completely transparent (0) to completely opaque (255). This enables smooth edges on cutout images, gradient fades to transparent, and complex semi-transparent effects. All transparency in your source image is preserved perfectly in the PNG output.
Convert from JPG, WebP, GIF, BMP, TIFF, AVIF (on Chrome), ICO, and any other format your browser can render. The tool accepts any image your browser can display, making it compatible with virtually every image format in active use today on desktop and mobile platforms.
Three compression levels let you trade off between conversion speed and output file size. All levels are lossless — visual quality never changes. Choose Fastest when converting many images rapidly, Balanced for everyday use, or Smallest File when minimising PNG file size matters for storage or bandwidth.
Fully responsive on iPhone, iPad, Android, Windows, macOS, and Linux. No app to install, no extension required. On iOS, select images from Camera Roll or Files. On Android, browse from Gallery. On desktop, drag and drop directly from your file manager. The same full feature set is available on every platform.
Choosing the right image format for your use case is one of the most impactful decisions in image management. Here is a definitive reference comparing every major format against PNG.
| Format | Compression | Transparency | Best For | Avg File Size (1MP) | Browser Support |
|---|---|---|---|---|---|
| PNG | Lossless | ✅ Full alpha | Logos, screenshots, editing masters, UI elements | 500 KB–3 MB | ✅ Universal |
| JPG / JPEG | Lossy | ❌ None | Photographs, web images, social media | 100–400 KB | ✅ Universal |
| WebP | Lossy & Lossless | ✅ Full alpha | Web delivery — 25–35% smaller than JPG/PNG | 70–300 KB | ✅ Modern browsers |
| GIF | Lossless (256 colors) | ✅ Binary only | Simple animations, flat-color icons | 50–500 KB | ✅ Universal |
| TIFF | Lossless | ✅ Full alpha | Print production, archiving, RAW processing output | 3–30 MB | ⚠️ Limited |
| BMP | None (uncompressed) | ⚠️ Limited | Windows system graphics, legacy applications | 3–10 MB | ✅ Most browsers |
| AVIF | Lossy & Lossless | ✅ Full alpha | Next-gen web images — up to 50% smaller than WebP | 30–150 KB | ⚠️ Modern browsers only |
| SVG | Vector (XML) | ✅ Yes | Icons, logos, illustrations at any resolution | 1–50 KB | ✅ All modern browsers |
Converting images to PNG serves distinct, legitimate needs across many different professional and personal workflows. Here are the most common users and their specific reasons for choosing PNG.
Design work lives or dies on precision. When a designer exports a logo, icon, button, or interface element for use in a product, presentation, or website, the image must be pixel-perfect — no compression artifacts, no color shifts, no blurry edges. PNG is the professional standard for design asset delivery precisely because its lossless compression guarantees what you see in your design tool is exactly what appears in the final output.
Transparent backgrounds are equally critical in design work. A logo on a transparent PNG background can be dropped onto any color, pattern, or photograph without a white rectangle appearing around it. A logo delivered as a JPG forces every recipient to manually remove the background — or simply use it badly. Designers convert all logo and icon deliverables to PNG as standard practice.
Web development involves handling images in many formats depending on their source — client-supplied JPGs, screenshots in various formats, WebP files downloaded from other sites, and GIFs from third-party tools. Converting all non-photographic assets to PNG before integrating them into a project creates a consistent, predictable working format. PNG's lossless compression means developers can be confident that the image they see locally is exactly what users see in the browser.
PNG is also the required format for many web development tasks: favicon creation (ICO files are generated from PNG), sprite sheets, CSS background images with transparency, and any UI element that needs a transparent background in HTML layouts. Web developers who receive JPG logos from clients immediately convert them to PNG as the first step in the design integration workflow.
Professional photographers shoot in RAW format and export to TIFF or JPG for distribution. But when an image needs retouching, colour grading adjustments, or composite work, saving edits in JPG format introduces progressive quality loss — each save cycle re-compresses and slightly degrades the image. Converting to PNG as an editing intermediary format eliminates this problem entirely. The photographer can open, edit, and save the PNG as many times as needed without any quality degradation, then export to JPG only for the final delivery.
Mobile apps, desktop applications, and video games all use PNG as the standard asset format for graphics. App icons, button graphics, character sprites, UI elements, map tiles, and texture atlases are all stored and distributed as PNG files. The lossless quality ensures assets look sharp on high-DPI (Retina) displays, and the transparency support enables complex layered graphics where elements overlap without opaque backgrounds interfering.
When a developer receives a design handoff in a mixed format — some assets as JPG, some as WebP, some as GIF — converting all of them to PNG normalises the asset library to a single consistent format with predictable behavior across all platforms and rendering contexts.
Product photography for e-commerce typically involves photographing items against a white or coloured background, then removing the background to create a cutout image of the product alone. This cutout — the product on a transparent background — must be saved as PNG because JPG cannot store transparency. The product on transparent PNG can then be placed on any background: white for Amazon listings, lifestyle scenes for Instagram, coloured cards for Facebook ads.
Even when a transparent background isn't needed, many e-commerce platforms (particularly those with zoom functionality) benefit from lossless PNG for product images because compression artifacts in JPG become clearly visible when a customer zooms in on product detail — a problem that doesn't exist with PNG.
Microsoft PowerPoint, Google Slides, Apple Keynote, and similar tools all handle PNG images better than JPG for non-photographic content. When logos, diagrams, charts, and screenshots are inserted into presentations as PNG, they remain crisp at any zoom level and any display resolution. The same assets as JPGs often look slightly fuzzy or show colour fringing around text in presentation contexts, particularly when projected or displayed on high-resolution screens.
Content creators who produce graphics, quote cards, infographics, and branded templates for social media need lossless quality at the design stage. Even though Instagram, Facebook, and Twitter ultimately store and serve images in compressed formats, starting from a high-quality PNG gives the platform's compression algorithm the best possible input. The platform's own compression is the unavoidable final step — but providing a PNG rather than a pre-compressed JPG gives you maximum control over how the final published image looks.
PNG (Portable Network Graphics) was developed in 1995 as a patent-free replacement for the GIF format, which was encumbered by Unisys's LZW compression patent at the time. The PNG format was designed by a working group led by Thomas Boutell and published as an Internet Standard in 1996. It was designed from the ground up for use on the web, with goals of lossless compression, full-color support, alpha channel transparency, and open, unencumbered distribution.
PNG achieved all of these goals and has remained one of the two dominant web image formats (alongside JPG) for nearly three decades. It is specified in ISO/IEC 15948:2004 and is maintained by the PNG Development Group. Every modern browser, operating system, image editing application, and design tool supports PNG natively.
PNG uses a two-stage compression process. In the first stage, a filter is applied to each row of pixels to make the data more compressible. Five filter types are available (None, Sub, Up, Average, Paeth) and the encoder selects the best filter for each row independently. In the second stage, the filtered data is compressed using the DEFLATE algorithm — the same compression algorithm used in ZIP files — which is completely lossless. Because DEFLATE is lossless, no image data is ever discarded: the decompressed output is bit-for-bit identical to the original pre-compression pixel data.
This two-stage approach explains why PNG compression levels affect file size and encoding speed but never visual quality. A "maximum compression" PNG contains exactly the same pixel data as a "minimum compression" PNG — the only difference is how efficiently the DEFLATE algorithm has been applied to the filtered data.
PNG supports several color modes, each suited to different image types. Grayscale stores single-channel luminance images at 1–16 bits per channel. RGB (PNG-24) stores full-color images at 8 or 16 bits per channel per color (24 or 48 bits total). RGBA (PNG-32) adds an 8 or 16-bit alpha channel to RGB, enabling full transparency. Indexed Color (PNG-8) uses a palette of up to 256 colors, similar to GIF, producing smaller files for simple graphics. This converter produces RGBA (PNG-32) output for images with transparency and RGB (PNG-24) output for fully opaque images, preserving the full color depth of the original.
These terms refer to the bit depth of the PNG file. PNG-8 uses an indexed palette with up to 256 colors — small files, suitable for flat-color icons and simple illustrations. PNG-24 stores full 24-bit RGB color (16.7 million possible colors) without any palette restriction — ideal for photographs and complex color gradients. PNG-32 adds a full 8-bit alpha channel to PNG-24's color data, enabling per-pixel opacity — the format of choice for logos, icons, and any image with a transparent background. This converter outputs PNG-24 for opaque images and PNG-32 for images with transparency.
APNG (Animated Portable Network Graphics) is an extension of the PNG format that supports animation, introduced in 2008. It is backward-compatible — browsers that don't support APNG simply display the first frame as a static PNG. APNG supports full 24-bit color and full alpha transparency in animations, unlike GIF which is limited to 256 colors and binary transparency. APNG is increasingly used for short animations where GIF's color limitations produce unacceptable banding. This converter produces standard static PNG, not APNG.
Both PNG and JPG are excellent formats — but for different content types. Making the right choice eliminates unnecessary file size bloat and quality loss. Here is the definitive guide.
The quickest method is using this online converter — upload, convert, download. No software needed. Alternatively, Paint (built into Windows) can convert any image to PNG: open the file, go to File → Save As → PNG. For batch conversion, IrfanView (free) lets you select multiple images and batch-export them all as PNG simultaneously using its Batch Conversion feature under File → Batch Conversion/Rename.
Preview (built into macOS) converts images to PNG with no additional software: open the image, go to File → Export, and choose PNG from the Format dropdown. For batch conversion, select multiple images in Finder, right-click → Open With → Preview. Then in Preview, select all images (Command+A) and go to File → Export Selected Images, choosing PNG as the format and selecting your output folder.
Use this online converter in Safari — tap the upload area, select your image from Photos or Files, and tap Convert. The PNG file saves to your Files app. Alternatively, the iOS Shortcuts app can be used to create a one-tap image conversion shortcut. Some third-party apps like Darkroom and VSCO also support PNG export.
This online converter works in Chrome for Android — tap the upload area and select from Gallery or Files. The PNG downloads to your Downloads folder. You can also use apps like Photo & Picture Resizer from the Play Store for offline PNG conversion. For power users, Termux with ImageMagick provides command-line batch conversion.
For converting large numbers of images programmatically, ImageMagick is the most powerful free tool. Install it on Windows, Mac, or Linux, then run: mogrify -format png *.jpg to convert all JPGs in the current folder to PNG. Or use convert input.jpg output.png for single files. GraphicsMagick offers similar functionality with different syntax.
| Method | Privacy | Speed | Transparency | Batch Support | Cost | Mobile |
|---|---|---|---|---|---|---|
| This Converter | ✅ 100% local | ✅ Instant | ✅ Preserved | ❌ One at a time | ✅ Free | ✅ Yes |
| Convertio / CloudConvert | ⚠️ Server upload | ⚠️ Upload speed | ✅ Yes | ✅ Yes | ⚠️ Freemium | ✅ Yes |
| Photoshop | ✅ Local | ✅ Fast | ✅ Yes | ✅ Batch actions | ❌ Paid | ❌ Desktop only |
| GIMP (free) | ✅ Local | ✅ Fast | ✅ Yes | ⚠️ Script possible | ✅ Free | ❌ Desktop only |
| Preview (Mac built-in) | ✅ Local | ✅ Fast | ✅ Yes | ✅ Multi-select | ✅ Free | ❌ Mac only |
| Paint (Windows built-in) | ✅ Local | ✅ Fast | ⚠️ Limited | ❌ One at a time | ✅ Free | ❌ Windows only |
| Squoosh (Google) | ✅ Local | ✅ Fast | ✅ Yes | ❌ One at a time | ✅ Free | ✅ Yes |
A common misconception is that converting a JPG to PNG "upgrades" it to lossless quality. It doesn't. PNG conversion creates a lossless copy of the JPG as it currently looks — including all compression artifacts already present. The artifacts don't disappear because the new container is lossless. The correct understanding is: PNG prevents future quality loss on subsequent saves, but it cannot undo past JPG compression.
PNG is the right choice for logos, screenshots, and design assets — but using PNG for photographs on a website is a significant performance mistake. A photograph that is 400 KB as a JPG at 85% quality might be 3–5 MB as PNG. Serving PNG photos causes dramatically slower page loads, higher bandwidth costs, and worse Google Core Web Vitals scores. Always use JPG or WebP for photographs on the web.
PNG-8 supports only 256 colors and binary (on/off) transparency — not the smooth alpha-channel transparency of PNG-24/32. Converting a full-color photograph or gradient image to PNG-8 causes severe color banding. Make sure your image tool is outputting PNG-24 (or PNG-32 for transparency) when quality matters.
While PNG is lossless, it can still be made significantly smaller through better compression without any quality change. Tools like TinyPNG, pngquant (for PNG-8 with careful dithering), and oxipng apply additional lossless optimisation that most image editors don't apply by default. Running PNGs through an optimiser before web publishing can reduce file size by 20–60% with zero visual change.
If someone sends you an image with a white background and you can't tell whether it's transparent PNG or white-background JPG, open it in an image editor that shows the checkered background for transparent areas. If it's white-background JPG being used as a "logo", the white box will appear when placed on any non-white background. Convert the image to PNG and remove the white background using a background removal tool for a proper transparent PNG.
High-DPI (Retina / 2x display) screens show images at double the pixel density. A 100×100px PNG on a Retina display is actually rendered at 200×200 CSS pixels. If you are creating PNGs for web or app use on Retina displays, always produce assets at 2x their intended display size (e.g., a 200×200px file for a 100×100px display element) to ensure sharpness.
Upload your image using the converter above — drag and drop it or click to browse. Supported formats include JPG, WebP, GIF, BMP, TIFF, and more. Choose your compression level and background fill preference, then click Convert & Download PNG. The file downloads instantly to your device. No account, no software installation, and no file upload to any server is required.
PNG (Portable Network Graphics) is a lossless image format that preserves every pixel without quality degradation. It supports full alpha channel transparency, making it ideal for logos, icons, UI elements, screenshots, and any image needing a transparent background. Convert to PNG when you need maximum quality for editing, transparency support, or working with sharp-edged content like text and logos.
No. Converting JPG to PNG does not recover quality already lost in the original JPG compression — that data is permanently gone. What PNG does is prevent any further quality loss on subsequent saves. If you plan to edit and re-save an image multiple times, working in PNG eliminates progressive degradation that would accumulate with repeated JPG saves.
PNG's lossless compression perfectly preserves sharp edges, flat colors, and text — the exact content types in logos and screenshots. JPG's lossy compression creates visible muddy artifacts around sharp boundaries. PNG also supports transparency, letting logos be placed on any background without a white rectangle appearing around them.
Yes. The converter preserves full alpha channel transparency from any source format that supports it (WebP, GIF, transparent PNG). Select "Keep Transparent" in the background options. The checkered preview shows you exactly which areas of your image are transparent before converting. The output PNG-32 file maintains every pixel's opacity value exactly.
Upload your JPG above and click Convert to PNG. No additional quality is lost during conversion — PNG is lossless, so the output is a pixel-perfect representation of the JPG as it currently appears. Any existing JPG compression artifacts are preserved as-is, but no new degradation is introduced.
PNG stores more data per pixel than JPG because it's lossless. JPG achieves its small size by permanently discarding image data; PNG retains all of it. This is the correct and expected behavior — you're trading a smaller file for complete data integrity. For photographs shown to the public on websites, JPG is the more efficient choice. For design assets and editing files, PNG's larger size is justified by the quality preservation.
This tool converts one image at a time for simplicity. For batch conversion: on Windows, use IrfanView (free) — File → Batch Conversion. On Mac, open multiple images in Preview → File → Export Selected Images → PNG. On Linux, use ImageMagick: mogrify -format png *.jpg converts all JPGs in the current folder to PNG.
Yes. Your image is processed entirely within your browser using the HTML5 Canvas API. It is never uploaded to any server, never stored anywhere outside your device, and never accessible to any third party. All conversion happens locally on your hardware — this is a technical guarantee, not a policy statement.
PNG-8 uses a 256-color indexed palette — small files for simple flat-color graphics. PNG-24 stores full 24-bit color (16.7 million colors) — ideal for complex images and photographs. PNG-32 adds a full alpha channel to PNG-24 for transparency. This converter outputs PNG-24 for opaque images and PNG-32 (with transparency) for images with alpha channels — always preserving full color depth.