Convert TIFF and TIF scans to PNG or JPG in your browser, with no upload and no sign-up.
Accepts TIFF, TIF. Exports PNG, JPG, SVG.
Open the editor and drop in any TIFF or TIF file, including large scans and print masters.
The conversion runs inside your browser tab. Your file never touches a server, so there is nothing to leak, cache, or delete later.
The TIFF is decoded on the spot. Export a lossless PNG, or a compact JPG or scalable SVG.
Since it opens in the full editor, you can screen, dither, or riso-separate the scan before you export it.
TIFF is the archival format of the print and scanning world. It is lossless, it holds sixteen bits per channel, it supports layers, multiple pages, CMYK, embedded colour profiles and half a dozen compression schemes. That flexibility is exactly why it is awkward: TIFF is less a format than a container specification, and a file that one program writes may be one another cannot open.
PNG is also lossless, so the pixel data survives intact where the two formats overlap. What does not survive is everything TIFF can hold that PNG cannot.
Multiple pages collapse to one. A multi-page TIFF from a scanner or a fax holds a sequence of images; PNG holds exactly one, so the conversion takes the first page unless you say otherwise.
CMYK becomes RGB. TIFF can store four-channel CMYK for print; PNG is RGB only. The conversion has to map between them, and because CMYK and RGB cover different ranges of colour, some saturated values shift. This is unavoidable rather than a defect, and it is the main reason to keep the TIFF if the file is going to a press.
Sixteen-bit depth can be preserved, since PNG supports sixteen bits per channel, though many programs will read it back as eight.
TIFF supports uncompressed storage, LZW, ZIP, PackBits and, confusingly, JPEG compression inside a TIFF container. An uncompressed TIFF of a large scan can easily run to hundreds of megabytes.
PNG uses DEFLATE with pre-filtering, which is usually more efficient than LZW on photographic content and dramatically more efficient on flat colour and line art. Converting an uncompressed TIFF to PNG frequently cuts the file size by half or better with no loss at all.
The exception is a TIFF that already used JPEG compression internally. That file is already lossy, and converting it to PNG will produce a larger file that faithfully preserves the JPEG artefacts. Lossless does not mean it undoes damage that has already happened.
Both formats support an alpha channel, so transparency survives the conversion. TIFF can store alpha as either associated or unassociated, meaning premultiplied or not, and getting that distinction wrong produces dark or light halos around the edges of transparent regions. The conversion here handles both correctly.
Embedded ICC profiles carry over. That matters if the TIFF came from a scanner or a camera with a wide-gamut profile, because reinterpreting those numbers as sRGB without converting shifts every colour in the image.
Scans and print files are frequently large and frequently confidential. Bitgrain parses and converts TIFF in the browser, so the file is not uploaded anywhere.
Because the file opens in the editor rather than a one-shot converter, the obvious next steps are available in the same place: halftone it for print, run a dither or riso separation, grade it with a LUT, or export it as SVG when it needs to scale.
For the pixel data, yes, both formats are lossless. What is lost is what PNG cannot represent: extra pages, CMYK channels and TIFF-specific metadata.
PNG's DEFLATE compression with pre-filtering is usually more efficient than an uncompressed or LZW-compressed TIFF, especially on flat colour and line art. The image data is identical.
PNG holds a single image, so a multi-page TIFF converts one page at a time. The first page is used by default.
Exporting as PNG is lossless, so the converted image matches the source. JPG is available when you want a smaller file.
No. The file is decoded in your browser and never leaves the tab.
Yes. Converting and exporting is free with no account.