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JPG to TIFF converter

Convert JPG images to TIFF format

No watermarkFree & unlimited
All processing happens in your browser. No data is sent to any server.

Print shops, journals and imaging systems ask for TIFF because it is predictable and because it does not re-compress anything. Converting a JPEG to it satisfies the request without pretending to improve the picture: the artifacts the camera or the export baked in are copied across pixel for pixel, now stored uncompressed. The file written here is the conservative baseline variant - little-endian, RGB, eight bits per channel, one strip, no compression - which is what the widest range of software accepts without a word of complaint.

Key facts about JPG to TIFF converter

Key facts about JPG to TIFF converter
Variant producedBaseline TIFF with ten directory tags, byte order II, RGB photometric interpretation and one strip for the whole image.
Compression tagSet to 1, meaning none. LZW, Deflate, PackBits and JPEG-in-TIFF are not offered by this encoder.
Quality relationshipStoring a JPEG uncompressed does not undo its compression - what you get is a large, exact copy of a previously compressed photograph.
Channels and depthThree 8-bit samples per pixel. No alpha sample is written, which costs nothing here since JPEG has no transparency.
Predictable length134 bytes of header and tags plus three bytes per pixel, so a 4000x3000 photo is always 36,000,134 bytes.
Colour spacePlain 8-bit sRGB. No ICC profile is embedded and no CMYK separation is produced, so a press vendor expecting CMYK will need a conversion step.
ResolutionNo XResolution or YResolution tag is written, so a layout program will fall back to its own default dpi assumption.
PagesA single image file directory. Multi-page TIFF, layers and high-bit-depth scans are outside what this page writes.
Opens natively inPhotoshop, InDesign, macOS Preview, Windows Photos, GIMP and the scanning and prepress software that asked for TIFF in the first place.

What happens to your file

Since no browser exposes a TIFF encoder, the page builds the file itself: after the JPEG is decoded and drawn, the canvas pixel array is stripped of its alpha bytes and packed into RGB triples, and a DataView writes the eight-byte file header and the ten tags ahead of that block before it is wrapped in a Blob. Your photograph is processed entirely in this tab, which also means the EXIF block with any GPS coordinates is dropped rather than forwarded - the TIFF contains pixels only.

About this tool

  1. 1

    Add JPG or HEIC files

    Both are accepted; an iPhone HEIC is decoded to JPEG data in the tab first and then written out as TIFF.

  2. 2

    Leave the dimensions alone unless told otherwise

    Print and submission requirements are usually expressed in pixels or dpi, so only use a resize preset when you know the target.

  3. 3

    Convert

    The pixel packing is a straightforward loop, so even large camera files finish in a moment - the size of the download is the notable part.

  4. 4

    Check it opens

    Open the .tif in Preview or Photoshop before sending it on; both read this variant directly.

Specs & compatibility
Input and outputTakes .jpg and .jpeg only (image/jpeg) and returns .tiff with the image/tiff type; any other extension is refused before decoding.
Conversion pathJPG to TIFF runs in three steps: an <img> element decodes the JPEG, baseline or progressive, in the browser; the pixels land on a 2D canvas in this tab; then getImageData feeds a baseline IFD writer that assembles the file in page memory.
Browser supportThe JPEG side decodes in every browser ever shipped, while writing the TIFF needs nothing from the browser, the directory being written in the page.
Controls for this pairNo quality slider, TIFF not being a lossy target here, so the max-dimension presets from 3840 down to 200 px are the only way to hold the TIFF down in size against the JPG.
Batch, caps and namingTwenty JPG files per run at 500 MB each; one result downloads as a single TIFF, several as converted-tiff-files.zip, zipped by JSZip 3.10 in page memory.
Device ceilingThe canvas caps it: past roughly 16,384 px a side Chromium refuses the bitmap and iPhone Safari gives up sooner, so an oversized JPG fails before any TIFF bytes exist.
  • If your recipient specified LZW or ZIP compression inside the TIFF, this file will not meet that requirement, because it is written uncompressed.
  • A TIFF made from a JPEG is only as good as the JPEG - when the original raw or PSD is still around, export the TIFF from there instead.
  • Twenty camera photos converted at once can approach a gigabyte, so convert in smaller groups if your disk or upload link is tight.
  • Browsers will not preview the result in a tab; use a desktop viewer to confirm the file before handing it over.
  • Meeting a publisher, print vendor or competition rule that names TIFF as the accepted format.
  • Importing photographs into prepress or layout software that treats TIFF as its native placed image.
  • Supplying uncompressed frames to a scientific or measurement application that does not read JPEG.
No. The detail the JPEG encoder discarded is gone for good, and an uncompressed container simply records what remains with perfect fidelity. The benefit is forward-looking: subsequent edits and saves in TIFF will not add further loss, whereas re-saving the JPEG repeatedly would.
Because it stores three raw bytes per pixel with no compression whatsoever. A twelve-megapixel photo therefore occupies thirty-six megabytes regardless of what it depicts. JPEG achieved its small size by throwing away information; this file keeps everything the decoder produced, byte for byte.
Not from this page. The output is 8-bit RGB with PhotometricInterpretation 2, because that is what a browser canvas produces. Converting to CMYK requires a colour-managed application with the printer's profile, and doing it correctly matters more than doing it quickly.
No - each input produces its own single-page file, and converting several at once returns several .tif files inside a ZIP. Combining them into one multi-page TIFF needs software that writes a chain of image file directories, which this encoder does not.
No. TIFF has rich metadata tags and the format could hold EXIF, but the conversion works from canvas pixels, so camera information, timestamps, GPS coordinates and colour profiles are absent. Only ten structural tags describing the image geometry are written.

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