Convert PNG images to TIFF in bulk. Lossless, transparency kept by default. Free, no watermark, and your files never leave your browser.
No images yet. You can also drop files on this box.
Changes apply to every image instantly. Size and aspect ratio stay the same.
Both formats are lossless, so nothing is lost either way. TIFF is what many print, prepress, archive and scanning tools expect. Transparent PNGs become RGBA TIFFs with a straight (unassociated) alpha channel; pick White or Black under "Background for transparency" to flatten them to plain RGB, which some older software needs. Fully opaque images are saved as RGB, so the file is not padded with an unused alpha channel. The TIFF is uncompressed (3 bytes per pixel, 4 with transparency), so it will be larger than the PNG.
Each file is decoded by your browser, drawn onto a canvas at its original size and re-encoded in the format you chose. Nothing is uploaded. Phone photos are rotated the right way up, and EXIF metadata (camera, GPS location) is removed. SVG files are rasterized at their own width and height. HEIC photos from iPhones are decoded on this page with libheif (compiled to WebAssembly, via the open-source heic-to library, LGPL), so they work in every browser, not just Safari. The decoder (about 0.8 MB) only downloads when you add a HEIC file. TIFF files are decoded with the MIT-licensed UTIF.js (about 80 KB, loaded only for TIFFs), and every page of a multi-page TIFF becomes its own image. The same library writes TIFF output: uncompressed baseline RGB, or RGBA with a straight alpha channel when the image has transparency you keep.
Other conversions: Image: JPG, PNG and WebP, PNG to JPG, JPG to PNG, PNG to JPEG, JPEG to PNG, WebP to PNG, WebP to JPG, PNG to WebP, JPG to WebP, HEIC to JPG, HEIC to PNG, AVIF to JPG, AVIF to PNG, GIF to PNG, BMP to JPG, JFIF to JPG, JFIF to PNG, JPG to JPEG, JPEG to JPG, BMP to PNG, ICO to PNG, TIFF to JPG, TIFF to PNG, GIF to JPG, JPG to TIFF. Need it smaller too? Use the image compressor (target size in KB) or resize the image to exact pixels.
If your images are screenshots of web pages, skip the conversion step. The Shotmint API renders any URL or HTML in Chromium and returns a PNG, JPG or WebP directly:
curl "https://shotmint.creasework.com/v1/screenshot?url=https://example.com&format=webp&quality=80" -H "X-API-Key: YOUR_KEY" -o page.webpEach screenshot is 1 credit. €5 buys 2,000 with no subscription, and credits never expire.
Get 25 free renders a month Try a website screenshot
Are my images uploaded? No. The conversion runs in JavaScript on this page, so it works for private photos and ID scans, and even offline once the page has loaded.
Does converting lose quality? To PNG: no new loss. To JPG or WebP: a little, set by the quality option. "Maximum" is visually identical for almost any image. Converting never adds back detail that was already lost.
Is there a limit? No file count limit and no watermark. Very large images (over about 50 megapixels) depend on your device's memory.
What about animated GIF or WebP? Only the first frame is converted.
TIFF to PNG Converter · TIFF to JPG · PDF to TIFF · TIFF to PDF · JPG to TIFF Converter · PNG to ICO · PNG / JPG to SVG (vectorize) · SVG to PNG · PNG to PDF · PNG to WebP Converter · PNG to JPG Converter · PNG to JPEG Converter · PDF to PNG · WebP to PNG Converter · JPG to PNG Converter · JPEG to PNG Converter · JFIF to PNG Converter · ICO to PNG Converter · all free tools