Is my file uploaded when converting TIFF to PNG?

No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.

Is TIFF to PNG conversion free?

Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.

How large a file can I convert?

Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.

Convert TIFF to PNG

Converts TIFF to PNG for web and general use, keeping lossless quality.

Convert TIFF to PNG →

Runs on: ImageMagick, compiled to WebAssembly, running in this tab
Steps: Direct, a single conversion
Input: .tiff · image/tiff
Output: .png · image/png
Uploads: None. The file never leaves your device.

What to expect

TIFF can hold multiple pages and high bit depths; only the first page survives, and depth above 8 bits per channel is reduced.

Why convert TIFF without uploading

Most online converters take your file, send it to their servers, convert it there and hand back a download link. That means your document sits on someone else's disk, subject to their retention policy and their breaches. It also means you cannot use them offline, and cannot use them at all for anything confidential.

frogConvert does the conversion in the page itself, with ImageMagick compiled to WebAssembly. There is no upload step because there is no server. You can disconnect from the network and it still works.

About the formats

TIFF

A flexible container used in scanning, print and archival work, supporting multiple pages, high bit depths and both lossless and lossy compression. That flexibility means two TIFFs can have very little in common. More about TIFF files.

PNG

Lossless compression with full alpha transparency, ideal for screenshots, logos and line art. Photographs stored as PNG are typically several times larger than the equivalent JPEG. More about PNG files.

Common questions

Is my file uploaded when converting TIFF to PNG?: No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.
Is TIFF to PNG conversion free?: Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.
How large a file can I convert?: Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.
What is lost converting TIFF to PNG?: TIFF can hold multiple pages and high bit depths; only the first page survives, and depth above 8 bits per channel is reduced.