Why convert TIFF to PNG instead of JPG?

PNG is a lossless format, meaning it preserves the exact sharpness and detail of your original TIFF file, whereas JPG introduces blurry compression artifacts.

Are my scanned documents uploaded to a server?

No. All conversion happens locally in your browser memory. Your files never leave your device.

Can I convert multiple TIFF files at once?

Yes. You can batch upload multiple TIFF files and convert them all to PNG simultaneously.

TIFF to PNG Converter

Convert large TIFF scanner files to PNG format online for free. Preserve lossless quality while making images web-friendly with no uploads.

Select your file here to get started

or drop your file here.

.tiff.tif

Max 2000MB. 100% Private. Files never leave your device.

What to expect

Experience fast, secure, and completely private processing directly inside your web browser.

True Lossless Quality

Unlike JPG, PNG preserves every pixel of your original TIFF without compression artifacts.

Significant Size Reduction

Make massive scanner files manageable for email and web use without sacrificing detail.

Complete Privacy

Sensitive scans and documents are processed locally and never uploaded to any server.

How it works

Simply upload your content, adjust your settings, and download the result instantly.

Upload TIFF Files

Select your large .tiff or .tif files from your computer.

Lossless Conversion

The tool renders the uncompressed data into a highly efficient, lossless PNG.

Download PNG

Save the web-friendly PNG file, ready for sharing or editing.

Frequently Asked Questions

Get quick answers about supported formats, data privacy, and using this tool.

TIFF to PNG Converter - Convert large TIFF scanner files to PNG format online for free. Preserve lossless quality while making images web-friendly with no uploads.

About This Tool

Convert heavy, uncompressed TIFF files from professional cameras and document scanners into lightweight, web-ready PNG images. While TIFF is excellent for archival storage, its massive file sizes make it impractical for web use, email, or everyday viewing. Unlike standard JPG conversion which introduces compression artifacts, converting TIFF to PNG maintains strict lossless quality. Your fine text, sharp graphics, and transparent layers remain perfectly intact, but in a much more manageable file format. Because this tool operates 100% locally in your browser, your sensitive scanned documents and proprietary design files never travel over the internet. Enjoy unlimited, watermark-free conversions with total peace of mind.

tiff to pngscanner converterlossless imagedocument imagestif converter

100% Open Source & Trustworthy

Every tool on PrivateTools is fully open source and runs entirely in your browser. No server uploads. No tracking. No hidden code. You can verify the source code yourself on GitHub at any time.

Open Source Code

Full source code available on GitHub — inspect, fork, or contribute.

Verify & Audit

Read every line of code. Nothing is hidden. Total transparency.

Browser-Local Processing

Files never leave your device. Zero server uploads. 100% private.

Community & Support

PrivateTools is built by the community, for the community. Found a bug? Have a tool idea? Want to report an issue? We'd love to hear from you. Every contribution makes these tools better for everyone.