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Image Tools

Image to PNG Converter

Pure Local Processing No Server Upload 7 Output Formats Canvas API

Convert HEIC, JPG, WebP, AVIF, BMP, TIFF and ICO to PNG free online. Supports transparency, batch conversion and ZIP download. 100% private — no upload.

How to Use

1

Upload Images

Click the upload area or drag and drop images from your computer. Supported formats: PNG, JPEG, WebP, AVIF, BMP, TIFF, ICO.

2

Adjust Quality

Use the quality slider to control the output image quality. Higher quality means larger file size.

3

Convert

Click the convert button to start processing. All conversion happens in your browser — no files are uploaded to any server.

4

Download

Download individual images or click 'Download All' to save all converted files as a ZIP archive.

Tips & Tricks

Lossless Quality

PNG uses lossless compression, preserving every detail of your original image. It supports transparency and is ideal for screenshots, logos, and graphics with sharp edges.

When to Use PNG

Choose PNG when you need perfect quality for screenshots, logos, or images requiring transparency. It is the best choice when every pixel matters.

PNG Best Practices

Use PNG for graphics with text, diagrams, screenshots, and images with transparency. For photographs, JPEG or WebP produce smaller files at similar quality.

Common Use Cases

Web Graphics

Create crisp logos, banners, and UI elements with transparent backgrounds

Screenshots

Capture screen content with pixel-perfect accuracy

Icon Design

Design icons with sharp edges and transparent backgrounds

Document Archiving

Archive documents and diagrams with zero quality loss

UI Mockups

Export UI designs with precise pixel alignment

Transparent Overlays

Create overlay graphics with transparency for compositing

Frequently Asked Questions

Are my images uploaded to a server?

No. All processing runs entirely in your browser via the Canvas API. Your images never leave your device.

Does PNG support transparency?

Yes. PNG supports an alpha channel, allowing for smooth transparency and semi-transparency. This makes it the preferred format for logos, icons, and graphics that need to overlay on different backgrounds.

Is there a file size limit?

Yes, each file must be under 50 MB. There is no fixed limit on how many files you can add, but very large batches take a while because everything runs in your browser tab.

When should I use PNG?

PNG is best for screenshots, diagrams, logos, and any image containing text or sharp edges. It is also the preferred choice when transparency is needed, such as for overlay graphics, UI elements, and icons.

Can I convert multiple images at once?

Yes. Add as many images as you need — there is no fixed batch limit — then download each file individually or grab them all as a ZIP archive.

Does PNG preserve EXIF metadata?

No. The conversion strips EXIF data (date, camera, location) for privacy and smaller output. If you need the capture date, add it back after conversion.

Guides

Longer write-ups on the things these tools deal with: file formats, size limits, and the algorithms behind them.