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· Last updated：2025-10-10
Convert PNG images to HEIF format with high efficiency image format
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Tool usage guide
Convert your PNG images to the High Efficiency Image Format (HEIF) quickly and easily. This tool helps you reduce file sizes while maintaining high image quality, making it ideal for optimizing storage space on your devices.
Convert JPEG images to PNG format with transparency support and lossless compression
Convert PNG images to 8-bit color depth for smaller file size and better compatibility
Convert PNG images to AVIF format with next-generation compression and superior quality-to-size ratio
Best for
Not ideal for
Very large files
Large files take longer and can hit browser memory limits — try a smaller sample first.
Skipping the output check
Compare the first rows or pages of the output with the input before using it in production.
Files from unusual exporters
Some files use format variants that do not convert cleanly — if the output looks wrong, re-save the file from the app that created it and try again.
Background
A creator has a folder full of high-resolution PNG screenshots that are consuming too much space on their phone.
Problem
The PNG files are too large to keep in bulk, causing storage warnings.
How to use
Upload the PNG screenshot and set the quality to 75 to balance size and detail.
quality: 75Outcome
The file size is reduced by over 50% while retaining the visual clarity needed for social media posts.
Background
A developer needs to include several PNG graphics on a landing page but wants to minimize load times.
Problem
Large PNG files are slowing down the page rendering speed.
How to use
Convert the PNG assets to HEIF using the default quality setting.
quality: 80Outcome
HEIF offers significantly better compression than PNG, resulting in much smaller file sizes without sacrificing visual quality.
Currently, this tool supports converting one PNG file at a time.
Yes, you can set a quality value between 0 and 100 to control the compression level of the output file.
Yes, the maximum file size for an individual PNG upload is 10 MB.
No, your files are processed in memory and are not stored permanently on our servers.
The images are converted to a highly efficient format, leading to faster page load times for end users.