PNG Converter
Convert any image to PNG in your browser. You get a lossless 8-bit PNG with full alpha. PNG is best for screenshots, logos, graphics and anything that needs transparency. Batch convert any number of files; nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
JPG, PNG, WebP, HEIC, AVIF, GIF, TIFF, SVG, RAW, PSD, JXL, BMP, ICO and more
How to use Convert to PNG
- 1
Drop your images or click to choose them. You can also paste from the clipboard.
- 2
PNG is written losslessly, so there is no quality to set.
- 3
Click Convert. Each file is processed on your device in a background thread.
- 4
Download files one by one or all at once as a ZIP.
Why use Aback Images for convert to png
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
Fast batch conversion
Several files are converted in parallel worker threads, with per-file progress and cancel.
Content-checked input
Files are identified by their bytes, not their name, so a mislabelled file still converts correctly.
Real control when you want it
Resize, rotate, background colour, metadata and codec options sit under More options.
About Convert to PNG
About PNG
PNG stores pixels losslessly with full alpha transparency. It is ideal for screenshots, logos, UI and anything with sharp edges, but photos saved as PNG are several times larger than JPEG.
A PNG opens with an 8-byte signature and is a chain of chunks, each with its own CRC: IHDR (size, depth, colour type), optional PLTE and tRNS for palettes, one or more IDAT chunks with the compressed rows, and IEND.
Strengths: Lossless: no quality loss, ever; Full transparency with smooth edges; Perfect for text, screenshots and graphics.
Drawbacks: Large files for photographs; No standard animation (that is APNG).
More conversions
Related tools
Shrink JPG, PNG, WebP, AVIF and GIF files with MozJPEG, OxiPNG and modern codecs, with a live before/after preview.
Resize to exact pixels, a percentage or a longest side, with Lanczos3 and Magic Kernel resampling. Batch ready.
Strip EXIF, GPS, XMP, IPTC and comments losslessly. Pixels are never re-encoded for JPG, PNG and WebP.
Convert between 34 image formats in bulk: HEIC, WebP, AVIF, JPEG XL, PNG, JPG, GIF, TIFF, SVG, ICO, PSD, RAW and more.
Frequently asked questions
Which apps open PNG files?
Every browser, operating system and image editor.
Which formats can I convert from?
Anything this site can read: JPG, PNG, WebP, AVIF, HEIC, GIF, SVG, TIFF, BMP, ICO, JPEG XL, PSD, RAW and more. Files are identified by their bytes, so a mislabelled file still converts.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.