Image Format Converter
Convert images between any format. Support PNG, JPG, WebP, AVIF, GIF and more.
or drop files here
Maximum file size: 50MB per file
High Quality
Maintain file quality while reducing file size up to 80%.
100% Secure
All processing happens in your browser. Your files never leave your device.
Super Fast
Compress multiple files in seconds with our optimised algorithms.
Supported Formats
Compress, convert & crop images offline on iPhone - privacy-first, batch up to 200
About Image Format Conversion
Our image format converter supports conversion between all major image formats including PNG, JPG, WebP, AVIF, GIF, BMP, and more. Whether you need to convert for web optimization, compatibility, or specific platform requirements, our tool makes it easy. All conversions happen in your browser for complete privacy.Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.
What should I check before downloading?
Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
How to Compress :format Files
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1
Select Image Files
Click the upload button or drag and drop your files into the upload area. You can select multiple files at once.
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2
Compress Files
Click the "Compress All Files" button. Our tool will process each file and show you the compression results in real-time.
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3
Download Compressed Files
Download your compressed files individually or all at once as a ZIP archive. Your original files remain unchanged.
Frequently Asked Questions
How to convert WebP to PNG online?
Upload your WebP file and our converter turns it into PNG instantly. Works in your browser for maximum privacy.
How to convert image formats?
Upload any image and select your target format. Supports conversion between JPG, PNG, WebP, GIF, SVG, HEIC, and more.
Does converting PNG to JPG reduce image quality?
Yes, JPG uses lossy compression, so converting from PNG may slightly reduce quality. Use a quality setting of 85-95% to keep the difference visually unnoticeable while cutting file size by 50-80%. PNG to PNG conversions remain lossless.
Which image formats support transparent backgrounds?
PNG, WebP, GIF and AVIF all support transparency. PNG is best for logos with sharp edges, WebP and AVIF offer smaller files with full alpha channels, while GIF only supports 1-bit transparency, so pixels are either fully visible or fully invisible.
Are my images uploaded to a server during conversion?
No, all conversions run locally in your browser using JavaScript, so images never leave your device. This means the tool works offline after loading, processes a 10 MB file in seconds, and keeps your photos completely private.
Is AVIF better than WebP for compressing photos?
AVIF typically produces files 20-50% smaller than WebP at similar visual quality, but browser support is slightly narrower and encoding takes longer. Choose WebP for maximum compatibility since all major browsers have supported it since 2020.
What is the maximum file size I can convert?
Because processing happens in your browser, there is no hard server limit; capacity depends on your device's RAM, typically handling images up to 50-100 MB. Most photos under 10 MB convert in one to two seconds.
How do I convert multiple images to WebP at once?
Drag and drop several files at once or select them together in the file picker, then pick WebP as the output. Ten 5 MB JPGs typically convert in under 10 seconds, and all results can be downloaded together.
Why Choose Let Compress?
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
References & Resources
Authoritative specifications and references for the file formats this tool works with.
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